diff --git a/libcxx/.clang-format b/libcxx/.clang-format --- a/libcxx/.clang-format +++ b/libcxx/.clang-format @@ -1,5 +1,95 @@ BasedOnStyle: LLVM +AlignAfterOpenBracket: Align +AlignConsecutiveAssignments: Consecutive +AlignConsecutiveBitFields: Consecutive +AlignEscapedNewlines: Right +AlignOperands: AlignAfterOperator +AlignTrailingComments: true +AllowAllArgumentsOnNextLine: true +AllowAllParametersOfDeclarationOnNextLine: true +AllowShortFunctionsOnASingleLine: true +AllowShortLambdasOnASingleLine: All +AttributeMacros: ['_LIBCPP_HIDE_FROM_ABI', + '_LIBCPP_CONSTEXPR', + '_LIBCPP_CONSTEXPR_AFTER_CXX11', + '_LIBCPP_CONSTEXPR_AFTER_CXX14', + '_LIBCPP_CONSTEXPR_AFTER_CXX17', + '_LIBCPP_CONSTEXPR_AFTER_CXX20', + '_LIBCPP_ALIGNOF', + '_ALIGNAS_TYPE', + '_ALIGNAS', + '_LIBCPP_NORETURN', + '_LIBCPP_ALWAYS_INLINE', + '_LIBCPP_DISABLE_EXTENTSION_WARNING', + '_LIBCPP_HIDDEN', + '_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS', + '_LIBCPP_FUNC_VIS', + '_LIBCPP_TYPE_VIS', + '_LIBCPP_TEMPLATE_VIS', + '_LIBCPP_TEMPLATE_DATA_VIS', + '_LIBCPP_EXPORTED_FROM_ABI', + '_LIBCPP_OVERRIDABLE_FUNC_VIS', + '_LIBCPP_EXCEPTION_ABI', + '_LIBCPP_ENUM_VIS', + '_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS', + '_LIBCPP_INTERNAL_LINKAGE', + '_LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION', + '_LIBCPP_HIDE_FROM_ABI_AFTER_V1', + '_LIBCPP_INLINE_VISIBILITY', + '_LIBCPP_CONSTEVAL', + '_LIBCPP_NOALIAS', + '_LIBCPP_USING_IF_EXISTS', + '_LIBCPP_DEPRECATED', + '_LIBCPP_DEPRECATED_IN_CXX11', + '_LIBCPP_DEPRECATED_IN_CXX14', + '_LIBCPP_DEPRECATED_IN_CXX17', + '_LIBCPP_DEPRECATED_IN_CXX20', + '_LIBCPP_NODISCARD', + '_LIBCPP_NODISCARD_EXT', + '_LIBCPP_NO_DESTROY', + '_LIBCPP_WEAK', + '_LIBCPP_CONSTINIT', + '_LIBCPP_FALLTHROUGH', + '_LIBCPP_STANDALONE_DEBUG', + '_LIBCPP_NO_UNIQUE_ADDRESS', + ] +BinPackArguments: false +BinPackParameters: false +BreakBeforeBinaryOperators: All +BreakBeforeBraces: Custom +BraceWrapping: + AfterCaseLabel: true + AfterClass: true + AfterControlStatement: Always + AfterEnum: true + AfterFunction: true + AfterNamespace: true + AfterStruct: true + AfterUnion: true + AfterExternBlock: true + BeforeCatch: true + BeforeElse: true + BeforeLambdaBody: false + BeforeWhile: false + IndentBraces: false + SplitEmptyFunction: false + SplitEmptyRecord: false + SplitEmptyNamespace: false +BreakBeforeConceptDeclarations: true +BreakInheritanceList: BeforeColon +EmptyLineAfterAccessModifier: Never +EmptyLineBeforeAccessModifier: Always +IndentWrappedFunctionNames: false +IndentRequires: true +InsertTrailingCommas: Wrapped +KeepEmptyLinesAtTheStartOfBlocks: false +MaxEmptyLinesToKeep: 1 +NamespaceIndentation: Inner +PackConstructorInitializers: NextLine + +PenaltyIndentedWhitespace: 61 + --- Language: Cpp Standard: c++20 diff --git a/libcxx/include/__ranges/lazy_split_view.h b/libcxx/include/__ranges/lazy_split_view.h --- a/libcxx/include/__ranges/lazy_split_view.h +++ b/libcxx/include/__ranges/lazy_split_view.h @@ -47,206 +47,232 @@ #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) -namespace ranges { +namespace ranges +{ -template struct __require_constant; +template +struct __require_constant; template -concept __tiny_range = - sized_range<_Range> && - requires { typename __require_constant::size()>; } && - (remove_reference_t<_Range>::size() <= 1); +concept __tiny_range + = sized_range<_Range> && requires { typename __require_constant::size()>; } + && (remove_reference_t<_Range>::size() <= 1); template - requires view<_View> && view<_Pattern> && - indirectly_comparable, iterator_t<_Pattern>, ranges::equal_to> && - (forward_range<_View> || __tiny_range<_Pattern>) -class lazy_split_view : public view_interface> { - - _LIBCPP_NO_UNIQUE_ADDRESS _View __base_ = _View(); + requires view<_View> && view<_Pattern> + && indirectly_comparable< + iterator_t<_View>, + iterator_t<_Pattern>, + ranges::equal_to> + && (forward_range<_View> || __tiny_range<_Pattern>)class lazy_split_view + : public view_interface> +{ + _LIBCPP_NO_UNIQUE_ADDRESS _View __base_ = _View(); _LIBCPP_NO_UNIQUE_ADDRESS _Pattern __pattern_ = _Pattern(); using _MaybeCurrent = _If, __non_propagating_cache>, __empty_cache>; _LIBCPP_NO_UNIQUE_ADDRESS _MaybeCurrent __current_ = _MaybeCurrent(); - template struct __outer_iterator; - template struct __inner_iterator; + template + struct __outer_iterator; + template + struct __inner_iterator; public: - _LIBCPP_HIDE_FROM_ABI - lazy_split_view() - requires default_initializable<_View> && default_initializable<_Pattern> = default; + _LIBCPP_HIDE_FROM_ABI lazy_split_view() + requires default_initializable<_View> && default_initializable<_Pattern> + = default; - _LIBCPP_HIDE_FROM_ABI - constexpr lazy_split_view(_View __base, _Pattern __pattern) - : __base_(std::move(__base)), __pattern_(std::move(__pattern)) {} + _LIBCPP_HIDE_FROM_ABI constexpr lazy_split_view(_View __base, _Pattern __pattern) + : __base_(std::move(__base)), __pattern_(std::move(__pattern)) + {} template - requires constructible_from<_View, views::all_t<_Range>> && - constructible_from<_Pattern, single_view>> - _LIBCPP_HIDE_FROM_ABI - constexpr lazy_split_view(_Range&& __r, range_value_t<_Range> __e) - : __base_(views::all(std::forward<_Range>(__r))) - // TODO(varconst): use `views::single` once it's implemented. - , __pattern_(ranges::single_view(std::move(__e))) {} - - _LIBCPP_HIDE_FROM_ABI - constexpr _View base() const& requires copy_constructible<_View> { return __base_; } - _LIBCPP_HIDE_FROM_ABI - constexpr _View base() && { return std::move(__base_); } - - _LIBCPP_HIDE_FROM_ABI - constexpr auto begin() { - if constexpr (forward_range<_View>) { - return __outer_iterator<__simple_view<_View> && __simple_view<_Pattern>>{*this, ranges::begin(__base_)}; - } else { + requires constructible_from<_View, views::all_t<_Range>> + && constructible_from<_Pattern, single_view>> + _LIBCPP_HIDE_FROM_ABI constexpr lazy_split_view(_Range&& __r, range_value_t<_Range> __e) + : __base_(views::all(std::forward<_Range>(__r))) + // TODO(varconst): use `views::single` once it's implemented. + , + __pattern_(ranges::single_view(std::move(__e))) + {} + + _LIBCPP_HIDE_FROM_ABI constexpr _View base() const& + requires copy_constructible<_View> + { + return __base_; + } + _LIBCPP_HIDE_FROM_ABI constexpr _View base() && { return std::move(__base_); } + + _LIBCPP_HIDE_FROM_ABI constexpr auto begin() + { + if constexpr (forward_range<_View>) + { + return __outer_iterator < __simple_view<_View> && __simple_view < _Pattern >> {*this, ranges::begin(__base_)}; + } + else + { __current_.__emplace(ranges::begin(__base_)); return __outer_iterator{*this}; } } - _LIBCPP_HIDE_FROM_ABI - constexpr auto begin() const requires forward_range<_View> && forward_range { + _LIBCPP_HIDE_FROM_ABI constexpr auto begin() const + requires forward_range<_View> && forward_range + { return __outer_iterator{*this, ranges::begin(__base_)}; } - _LIBCPP_HIDE_FROM_ABI - constexpr auto end() requires forward_range<_View> && common_range<_View> { - return __outer_iterator<__simple_view<_View> && __simple_view<_Pattern>>{*this, ranges::end(__base_)}; + _LIBCPP_HIDE_FROM_ABI constexpr auto end() + requires forward_range<_View> && common_range<_View> + { + return __outer_iterator < __simple_view<_View> && __simple_view < _Pattern >> {*this, ranges::end(__base_)}; } - _LIBCPP_HIDE_FROM_ABI - constexpr auto end() const { - if constexpr (forward_range<_View> && forward_range && common_range) { + _LIBCPP_HIDE_FROM_ABI constexpr auto end() const + { + if constexpr (forward_range<_View> && forward_range && common_range) + { return __outer_iterator{*this, ranges::end(__base_)}; - } else { + } + else + { return default_sentinel; } } private: - template - struct __outer_iterator_category {}; + struct __outer_iterator_category + {}; template - struct __outer_iterator_category<_Tp> { + struct __outer_iterator_category<_Tp> + { using iterator_category = input_iterator_tag; }; template - struct __outer_iterator : __outer_iterator_category<__maybe_const<_Const, _View>> { + struct __outer_iterator : __outer_iterator_category<__maybe_const<_Const, _View>> + { private: template friend struct __inner_iterator; friend __outer_iterator; using _Parent = __maybe_const<_Const, lazy_split_view>; - using _Base = __maybe_const<_Const, _View>; + using _Base = __maybe_const<_Const, _View>; - _Parent* __parent_ = nullptr; - using _MaybeCurrent = _If, iterator_t<_Base>, __empty_cache>; + _Parent* __parent_ = nullptr; + using _MaybeCurrent = _If, iterator_t<_Base>, __empty_cache>; _LIBCPP_NO_UNIQUE_ADDRESS _MaybeCurrent __current_ = _MaybeCurrent(); - bool __trailing_empty_ = false; + bool __trailing_empty_ = false; - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto& __current() noexcept { - if constexpr (forward_range<_View>) { + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto& __current() noexcept + { + if constexpr (forward_range<_View>) + { return __current_; - } else { + } + else + { return *__parent_->__current_; } } - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr const auto& __current() const noexcept { - if constexpr (forward_range<_View>) { + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const auto& __current() const noexcept + { + if constexpr (forward_range<_View>) + { return __current_; - } else { + } + else + { return *__parent_->__current_; } } // Workaround for the GCC issue that doesn't allow calling `__parent_->__base_` from friend functions (because // `__base_` is private). - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto& __parent_base() const noexcept { - return __parent_->__base_; - } + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto& __parent_base() const noexcept { return __parent_->__base_; } public: // using iterator_category = inherited; using iterator_concept = conditional_t, forward_iterator_tag, input_iterator_tag>; - using difference_type = range_difference_t<_Base>; + using difference_type = range_difference_t<_Base>; - struct value_type : view_interface { + struct value_type : view_interface + { private: __outer_iterator __i_ = __outer_iterator(); public: - _LIBCPP_HIDE_FROM_ABI - value_type() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit value_type(__outer_iterator __i) - : __i_(std::move(__i)) {} - - _LIBCPP_HIDE_FROM_ABI - constexpr __inner_iterator<_Const> begin() const { return __inner_iterator<_Const>{__i_}; } - _LIBCPP_HIDE_FROM_ABI - constexpr default_sentinel_t end() const noexcept { return default_sentinel; } + _LIBCPP_HIDE_FROM_ABI value_type() = default; + _LIBCPP_HIDE_FROM_ABI constexpr explicit value_type(__outer_iterator __i) : __i_(std::move(__i)) {} + + _LIBCPP_HIDE_FROM_ABI constexpr __inner_iterator<_Const> begin() const { return __inner_iterator<_Const>{__i_}; } + _LIBCPP_HIDE_FROM_ABI constexpr default_sentinel_t end() const noexcept { return default_sentinel; } }; - _LIBCPP_HIDE_FROM_ABI - __outer_iterator() = default; + _LIBCPP_HIDE_FROM_ABI __outer_iterator() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit __outer_iterator(_Parent& __parent) - requires (!forward_range<_Base>) - : __parent_(std::addressof(__parent)) {} + _LIBCPP_HIDE_FROM_ABI constexpr explicit __outer_iterator(_Parent& __parent) + requires(!forward_range<_Base>) + : __parent_(std::addressof(__parent)) + {} - _LIBCPP_HIDE_FROM_ABI - constexpr __outer_iterator(_Parent& __parent, iterator_t<_Base> __current) + _LIBCPP_HIDE_FROM_ABI constexpr __outer_iterator(_Parent& __parent, iterator_t<_Base> __current) requires forward_range<_Base> - : __parent_(std::addressof(__parent)), __current_(std::move(__current)) {} + : __parent_(std::addressof(__parent)), __current_(std::move(__current)) + {} - _LIBCPP_HIDE_FROM_ABI - constexpr __outer_iterator(__outer_iterator __i) - requires _Const && convertible_to, iterator_t<_Base>> - : __parent_(__i.__parent_), __current_(std::move(__i.__current_)) {} + _LIBCPP_HIDE_FROM_ABI constexpr __outer_iterator(__outer_iterator __i) + requires _Const + && convertible_to, + iterator_t<_Base>> + : __parent_(__i.__parent_), __current_(std::move(__i.__current_)) + {} - _LIBCPP_HIDE_FROM_ABI - constexpr value_type operator*() const { return value_type{*this}; } + _LIBCPP_HIDE_FROM_ABI constexpr value_type operator*() const { return value_type{*this}; } - _LIBCPP_HIDE_FROM_ABI - constexpr __outer_iterator& operator++() { + _LIBCPP_HIDE_FROM_ABI constexpr __outer_iterator& operator++() + { const auto __end = ranges::end(__parent_->__base_); - if (__current() == __end) { + if (__current() == __end) + { __trailing_empty_ = false; return *this; } const auto [__pbegin, __pend] = ranges::subrange{__parent_->__pattern_}; - if (__pbegin == __pend) { + if (__pbegin == __pend) + { // Empty pattern: split on every element in the input range ++__current(); - - } else if constexpr (__tiny_range<_Pattern>) { + } + else if constexpr (__tiny_range<_Pattern>) + { // One-element pattern: we can use `ranges::find`. __current() = ranges::find(std::move(__current()), __end, *__pbegin); - if (__current() != __end) { + if (__current() != __end) + { // Make sure we point to after the separator we just found. ++__current(); if (__current() == __end) __trailing_empty_ = true; } - - } else { + } + else + { // General case for n-element pattern. - do { + do + { const auto [__b, __p] = ranges::mismatch(__current(), __end, __pbegin, __pend); - if (__p == __pend) { + if (__p == __pend) + { __current() = __b; - if (__current() == __end) { + if (__current() == __end) + { __trailing_empty_ = true; } break; // The pattern matched; skip it. @@ -257,63 +283,68 @@ return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr decltype(auto) operator++(int) { - if constexpr (forward_range<_Base>) { + _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) operator++(int) + { + if constexpr (forward_range<_Base>) + { auto __tmp = *this; ++*this; return __tmp; - - } else { + } + else + { ++*this; } } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator==(const __outer_iterator& __x, const __outer_iterator& __y) - requires forward_range<_Base> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __outer_iterator& __x, const __outer_iterator& __y) + requires forward_range<_Base> + { return __x.__current_ == __y.__current_ && __x.__trailing_empty_ == __y.__trailing_empty_; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator==(const __outer_iterator& __x, default_sentinel_t) { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __outer_iterator& __x, default_sentinel_t) + { _LIBCPP_ASSERT(__x.__parent_, "Cannot call comparison on a default-constructed iterator."); return __x.__current() == ranges::end(__x.__parent_base()) && !__x.__trailing_empty_; } }; template - struct __inner_iterator_category {}; + struct __inner_iterator_category + {}; template - struct __inner_iterator_category<_Tp> { + struct __inner_iterator_category<_Tp> + { using iterator_category = _If< - derived_from>::iterator_category, forward_iterator_tag>, - forward_iterator_tag, - typename iterator_traits>::iterator_category - >; + derived_from>::iterator_category, forward_iterator_tag>, + forward_iterator_tag, + typename iterator_traits>::iterator_category >; }; template - struct __inner_iterator : __inner_iterator_category<__maybe_const<_Const, _View>> { + struct __inner_iterator : __inner_iterator_category<__maybe_const<_Const, _View>> + { private: using _Base = __maybe_const<_Const, _View>; // Workaround for a GCC issue. static constexpr bool _OuterConst = _Const; - __outer_iterator<_Const> __i_ = __outer_iterator<_OuterConst>(); - bool __incremented_ = false; + __outer_iterator<_Const> __i_ = __outer_iterator<_OuterConst>(); + bool __incremented_ = false; // Note: these private functions are necessary because GCC doesn't allow calls to private members of `__i_` from // free functions that are friends of `inner-iterator`. - _LIBCPP_HIDE_FROM_ABI - constexpr bool __is_done() const { + _LIBCPP_HIDE_FROM_ABI constexpr bool __is_done() const + { _LIBCPP_ASSERT(__i_.__parent_, "Cannot call comparison on a default-constructed iterator."); auto [__pcur, __pend] = ranges::subrange{__i_.__parent_->__pattern_}; - auto __end = ranges::end(__i_.__parent_->__base_); + auto __end = ranges::end(__i_.__parent_->__base_); - if constexpr (__tiny_range<_Pattern>) { + if constexpr (__tiny_range<_Pattern>) + { const auto& __cur = __i_.__current(); if (__cur == __end) return true; @@ -321,15 +352,17 @@ return __incremented_; return *__cur == *__pcur; - - } else { + } + else + { auto __cur = __i_.__current(); if (__cur == __end) return true; if (__pcur == __pend) return __incremented_; - do { + do + { if (*__cur != *__pcur) return false; if (++__pcur == __pend) @@ -340,44 +373,40 @@ } } - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto& __outer_current() noexcept { - return __i_.__current(); - } + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto& __outer_current() noexcept { return __i_.__current(); } - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr const auto& __outer_current() const noexcept { + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const auto& __outer_current() const noexcept + { return __i_.__current(); } public: // using iterator_category = inherited; using iterator_concept = typename __outer_iterator<_Const>::iterator_concept; - using value_type = range_value_t<_Base>; - using difference_type = range_difference_t<_Base>; + using value_type = range_value_t<_Base>; + using difference_type = range_difference_t<_Base>; - _LIBCPP_HIDE_FROM_ABI - __inner_iterator() = default; + _LIBCPP_HIDE_FROM_ABI __inner_iterator() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit __inner_iterator(__outer_iterator<_Const> __i) - : __i_(std::move(__i)) {} + _LIBCPP_HIDE_FROM_ABI constexpr explicit __inner_iterator(__outer_iterator<_Const> __i) : __i_(std::move(__i)) {} - _LIBCPP_HIDE_FROM_ABI - constexpr const iterator_t<_Base>& base() const& noexcept { return __i_.__current(); } - _LIBCPP_HIDE_FROM_ABI - constexpr iterator_t<_Base> base() && - requires forward_range<_View> { return std::move(__i_.__current()); } + _LIBCPP_HIDE_FROM_ABI constexpr const iterator_t<_Base>& base() const& noexcept { return __i_.__current(); } + _LIBCPP_HIDE_FROM_ABI constexpr iterator_t<_Base> base() && + requires forward_range<_View> + { + return std::move(__i_.__current()); + } - _LIBCPP_HIDE_FROM_ABI - constexpr decltype(auto) operator*() const { return *__i_.__current(); } + _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) operator*() const { return *__i_.__current(); } - _LIBCPP_HIDE_FROM_ABI - constexpr __inner_iterator& operator++() { + _LIBCPP_HIDE_FROM_ABI constexpr __inner_iterator& operator++() + { __incremented_ = true; - if constexpr (!forward_range<_Base>) { - if constexpr (_Pattern::size() == 0) { + if constexpr (!forward_range<_Base>) + { + if constexpr (_Pattern::size() == 0) + { return *this; } } @@ -386,43 +415,45 @@ return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr decltype(auto) operator++(int) { - if constexpr (forward_range<_Base>) { + _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) operator++(int) + { + if constexpr (forward_range<_Base>) + { auto __tmp = *this; ++*this; return __tmp; - - } else { + } + else + { ++*this; } } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator==(const __inner_iterator& __x, const __inner_iterator& __y) - requires forward_range<_Base> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __inner_iterator& __x, const __inner_iterator& __y) + requires forward_range<_Base> + { return __x.__outer_current() == __y.__outer_current(); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator==(const __inner_iterator& __x, default_sentinel_t) { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __inner_iterator& __x, default_sentinel_t) + { return __x.__is_done(); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr decltype(auto) iter_move(const __inner_iterator& __i) - noexcept(noexcept(ranges::iter_move(__i.__outer_current()))) { + _LIBCPP_HIDE_FROM_ABI friend constexpr decltype(auto) + iter_move(const __inner_iterator& __i) noexcept(noexcept(ranges::iter_move(__i.__outer_current()))) + { return ranges::iter_move(__i.__outer_current()); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr void iter_swap(const __inner_iterator& __x, const __inner_iterator& __y) - noexcept(noexcept(ranges::iter_swap(__x.__outer_current(), __y.__outer_current()))) - requires indirectly_swappable> { + _LIBCPP_HIDE_FROM_ABI friend constexpr void + iter_swap(const __inner_iterator& __x, const __inner_iterator& __y) noexcept( + noexcept(ranges::iter_swap(__x.__outer_current(), __y.__outer_current()))) + requires indirectly_swappable> + { ranges::iter_swap(__x.__outer_current(), __y.__outer_current()); } }; - }; template @@ -430,31 +461,38 @@ template lazy_split_view(_Range&&, range_value_t<_Range>) - -> lazy_split_view, single_view>>; - -namespace views { -namespace __lazy_split_view { -struct __fn : __range_adaptor_closure<__fn> { - template - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Range&& __range, _Pattern&& __pattern) const - noexcept(noexcept(lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern)))) - -> decltype( lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern))) - { return lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern)); } - - template - requires constructible_from, _Pattern> - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Pattern&& __pattern) const - noexcept(is_nothrow_constructible_v, _Pattern>) { - return __range_adaptor_closure_t(std::__bind_back(*this, std::forward<_Pattern>(__pattern))); - } -}; -} // namespace __lazy_split_view + -> lazy_split_view, single_view>>; + +namespace views +{ + namespace __lazy_split_view + { + struct __fn : __range_adaptor_closure<__fn> + { + template + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto + operator()(_Range&& __range, _Pattern&& __pattern) const noexcept( + noexcept(lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern)))) + -> decltype(lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern))) + { + return lazy_split_view(std::forward<_Range>(__range), std::forward<_Pattern>(__pattern)); + } + + template + requires constructible_from< + decay_t<_Pattern>, + _Pattern> [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto + operator()(_Pattern&& __pattern) const noexcept(is_nothrow_constructible_v, _Pattern>) + { + return __range_adaptor_closure_t(std::__bind_back(*this, std::forward<_Pattern>(__pattern))); + } + }; + } // namespace __lazy_split_view -inline namespace __cpo { - inline constexpr auto lazy_split = __lazy_split_view::__fn{}; -} // namespace __cpo + inline namespace __cpo + { + inline constexpr auto lazy_split = __lazy_split_view::__fn{}; + } // namespace __cpo } // namespace views } // namespace ranges diff --git a/libcxx/include/__ranges/zip_view.h b/libcxx/include/__ranges/zip_view.h --- a/libcxx/include/__ranges/zip_view.h +++ b/libcxx/include/__ranges/zip_view.h @@ -46,12 +46,14 @@ #if _LIBCPP_STD_VER > 20 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) -namespace ranges { +namespace ranges +{ template -concept __zip_is_common = (sizeof...(_Ranges) == 1 && (common_range<_Ranges> && ...)) || - (!(bidirectional_range<_Ranges> && ...) && (common_range<_Ranges> && ...)) || - ((random_access_range<_Ranges> && ...) && (sized_range<_Ranges> && ...)); +concept __zip_is_common + = (sizeof...(_Ranges) == 1 && (common_range<_Ranges> && ...)) + || (!(bidirectional_range<_Ranges> && ...) && (common_range<_Ranges> && ...)) + || ((random_access_range<_Ranges> && ...) && (sized_range<_Ranges> && ...)); template auto __tuple_or_pair_test() -> pair<_Tp, _Up>; @@ -64,7 +66,8 @@ using __tuple_or_pair = decltype(__tuple_or_pair_test<_Types...>()); template -_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_transform(_Fun&& __f, _Tuple&& __tuple) { +_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_transform(_Fun&& __f, _Tuple&& __tuple) +{ return std::apply( [&](_Types&&... __elements) { return __tuple_or_pair...>( @@ -74,43 +77,58 @@ } template -_LIBCPP_HIDE_FROM_ABI constexpr void __tuple_for_each(_Fun&& __f, _Tuple&& __tuple) { +_LIBCPP_HIDE_FROM_ABI constexpr void __tuple_for_each(_Fun&& __f, _Tuple&& __tuple) +{ std::apply( [&](_Types&&... __elements) { (std::invoke(__f, std::forward<_Types>(__elements)), ...); }, std::forward<_Tuple>(__tuple)); } template -_LIBCPP_HIDE_FROM_ABI constexpr __tuple_or_pair< - invoke_result_t<_Fun&, typename tuple_element<_Indices, remove_cvref_t<_Tuple1>>::type, - typename tuple_element<_Indices, remove_cvref_t<_Tuple2>>::type>...> -__tuple_zip_transform(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2, index_sequence<_Indices...>) { - return {std::invoke(__f, std::get<_Indices>(std::forward<_Tuple1>(__tuple1)), - std::get<_Indices>(std::forward<_Tuple2>(__tuple2)))...}; +_LIBCPP_HIDE_FROM_ABI constexpr __tuple_or_pair< invoke_result_t< + _Fun&, + typename tuple_element<_Indices, remove_cvref_t<_Tuple1>>::type, + typename tuple_element<_Indices, remove_cvref_t<_Tuple2>>::type>...> +__tuple_zip_transform(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2, index_sequence<_Indices...>) +{ + return {std::invoke( + __f, + std::get<_Indices>(std::forward<_Tuple1>(__tuple1)), + std::get<_Indices>(std::forward<_Tuple2>(__tuple2)))...}; } template -_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_zip_transform(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2) { - return ranges::__tuple_zip_transform(__f, std::forward<_Tuple1>(__tuple1), std::forward<_Tuple2>(__tuple2), - std::make_index_sequence>::value>()); +_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_zip_transform(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2) +{ + return ranges::__tuple_zip_transform( + __f, + std::forward<_Tuple1>(__tuple1), + std::forward<_Tuple2>(__tuple2), + std::make_index_sequence>::value>()); } template -_LIBCPP_HIDE_FROM_ABI constexpr void __tuple_zip_for_each(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2, - index_sequence<_Indices...>) { - (std::invoke(__f, std::get<_Indices>(std::forward<_Tuple1>(__tuple1)), - std::get<_Indices>(std::forward<_Tuple2>(__tuple2))), +_LIBCPP_HIDE_FROM_ABI constexpr void +__tuple_zip_for_each(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2, index_sequence<_Indices...>) +{ + (std::invoke( + __f, std::get<_Indices>(std::forward<_Tuple1>(__tuple1)), std::get<_Indices>(std::forward<_Tuple2>(__tuple2))), ...); } template -_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_zip_for_each(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2) { - return ranges::__tuple_zip_for_each(__f, std::forward<_Tuple1>(__tuple1), std::forward<_Tuple2>(__tuple2), - std::make_index_sequence>::value>()); +_LIBCPP_HIDE_FROM_ABI constexpr auto __tuple_zip_for_each(_Fun&& __f, _Tuple1&& __tuple1, _Tuple2&& __tuple2) +{ + return ranges::__tuple_zip_for_each( + __f, + std::forward<_Tuple1>(__tuple1), + std::forward<_Tuple2>(__tuple2), + std::make_index_sequence>::value>()); } template -_LIBCPP_HIDE_FROM_ABI constexpr bool __tuple_any_equals(const _Tuple1& __tuple1, const _Tuple2& __tuple2) { +_LIBCPP_HIDE_FROM_ABI constexpr bool __tuple_any_equals(const _Tuple1& __tuple1, const _Tuple2& __tuple2) +{ const auto __equals = ranges::__tuple_zip_transform(std::equal_to<>(), __tuple1, __tuple2); return std::apply([](auto... __bools) { return (__bools || ...); }, __equals); } @@ -118,14 +136,15 @@ // abs in cstdlib is not constexpr // TODO : remove __abs once P0533R9 is implemented. template -_LIBCPP_HIDE_FROM_ABI constexpr _Tp __abs(_Tp __t) { +_LIBCPP_HIDE_FROM_ABI constexpr _Tp __abs(_Tp __t) +{ return __t < 0 ? -__t : __t; } template requires(view<_Views> && ...) && (sizeof...(_Views) > 0) -class zip_view : public view_interface> { - +class zip_view : public view_interface> +{ _LIBCPP_NO_UNIQUE_ADDRESS tuple<_Views...> __views_; template @@ -135,51 +154,59 @@ class __sentinel; public: - _LIBCPP_HIDE_FROM_ABI - zip_view() = default; + _LIBCPP_HIDE_FROM_ABI zip_view() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit zip_view(_Views... __views) : __views_(std::move(__views)...) {} + _LIBCPP_HIDE_FROM_ABI constexpr explicit zip_view(_Views... __views) : __views_(std::move(__views)...) {} - _LIBCPP_HIDE_FROM_ABI - constexpr auto begin() - requires(!(__simple_view<_Views> && ...)) { + _LIBCPP_HIDE_FROM_ABI constexpr auto begin() + requires(!(__simple_view<_Views> && ...)) + { return __iterator(ranges::__tuple_transform(ranges::begin, __views_)); } - _LIBCPP_HIDE_FROM_ABI - constexpr auto begin() const - requires(range && ...) { + _LIBCPP_HIDE_FROM_ABI constexpr auto begin() const + requires(range && ...) + { return __iterator(ranges::__tuple_transform(ranges::begin, __views_)); } - _LIBCPP_HIDE_FROM_ABI - constexpr auto end() - requires(!(__simple_view<_Views> && ...)) { - if constexpr (!__zip_is_common<_Views...>) { + _LIBCPP_HIDE_FROM_ABI constexpr auto end() + requires(!(__simple_view<_Views> && ...)) + { + if constexpr (!__zip_is_common<_Views...>) + { return __sentinel(ranges::__tuple_transform(ranges::end, __views_)); - } else if constexpr ((random_access_range<_Views> && ...)) { + } + else if constexpr ((random_access_range<_Views> && ...)) + { return begin() + iter_difference_t<__iterator>(size()); - } else { + } + else + { return __iterator(ranges::__tuple_transform(ranges::end, __views_)); } } - _LIBCPP_HIDE_FROM_ABI - constexpr auto end() const - requires(range && ...) { - if constexpr (!__zip_is_common) { + _LIBCPP_HIDE_FROM_ABI constexpr auto end() const + requires(range && ...) + { + if constexpr (!__zip_is_common) + { return __sentinel(ranges::__tuple_transform(ranges::end, __views_)); - } else if constexpr ((random_access_range && ...)) { + } + else if constexpr ((random_access_range && ...)) + { return begin() + iter_difference_t<__iterator>(size()); - } else { + } + else + { return __iterator(ranges::__tuple_transform(ranges::end, __views_)); } } - _LIBCPP_HIDE_FROM_ABI - constexpr auto size() - requires(sized_range<_Views> && ...) { + _LIBCPP_HIDE_FROM_ABI constexpr auto size() + requires(sized_range<_Views> && ...) + { return std::apply( [](auto... __sizes) { using _CT = make_unsigned_t>; @@ -188,9 +215,9 @@ ranges::__tuple_transform(ranges::size, __views_)); } - _LIBCPP_HIDE_FROM_ABI - constexpr auto size() const - requires(sized_range && ...) { + _LIBCPP_HIDE_FROM_ABI constexpr auto size() const + requires(sized_range && ...) + { return std::apply( [](auto... __sizes) { using _CT = make_unsigned_t>; @@ -213,37 +240,48 @@ concept __zip_all_forward = (forward_range<__maybe_const<_Const, _Views>> && ...); template -consteval auto __get_zip_view_iterator_tag() { - if constexpr (__zip_all_random_access<_Const, _Views...>) { +consteval auto __get_zip_view_iterator_tag() +{ + if constexpr (__zip_all_random_access<_Const, _Views...>) + { return random_access_iterator_tag(); - } else if constexpr (__zip_all_bidirectional<_Const, _Views...>) { + } + else if constexpr (__zip_all_bidirectional<_Const, _Views...>) + { return bidirectional_iterator_tag(); - } else if constexpr (__zip_all_forward<_Const, _Views...>) { + } + else if constexpr (__zip_all_forward<_Const, _Views...>) + { return forward_iterator_tag(); - } else { + } + else + { return input_iterator_tag(); } } template -struct __zip_view_iterator_category_base {}; +struct __zip_view_iterator_category_base +{}; template requires __zip_all_forward<_Const, _Views...> -struct __zip_view_iterator_category_base<_Const, _Views...> { +struct __zip_view_iterator_category_base<_Const, _Views...> +{ using iterator_category = input_iterator_tag; }; template requires(view<_Views> && ...) && (sizeof...(_Views) > 0) template -class zip_view<_Views...>::__iterator : public __zip_view_iterator_category_base<_Const, _Views...> { - +class zip_view<_Views...>::__iterator : public __zip_view_iterator_category_base<_Const, _Views...> +{ __tuple_or_pair>...> __current_; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit __iterator(__tuple_or_pair>...> __current) - : __current_(std::move(__current)) {} + _LIBCPP_HIDE_FROM_ABI constexpr explicit __iterator( + __tuple_or_pair>...> __current) + : __current_(std::move(__current)) + {} template friend class zip_view<_Views...>::__iterator; @@ -255,164 +293,167 @@ public: using iterator_concept = decltype(__get_zip_view_iterator_tag<_Const, _Views...>()); - using value_type = __tuple_or_pair>...>; - using difference_type = common_type_t>...>; + using value_type = __tuple_or_pair>...>; + using difference_type = common_type_t>...>; - _LIBCPP_HIDE_FROM_ABI - __iterator() = default; + _LIBCPP_HIDE_FROM_ABI __iterator() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator(__iterator __i) + _LIBCPP_HIDE_FROM_ABI constexpr __iterator(__iterator __i) requires _Const && (convertible_to, iterator_t<__maybe_const<_Const, _Views>>> && ...) - : __current_(std::move(__i.__current_)) {} + : __current_(std::move(__i.__current_)) + {} - _LIBCPP_HIDE_FROM_ABI - constexpr auto operator*() const { + _LIBCPP_HIDE_FROM_ABI constexpr auto operator*() const + { return ranges::__tuple_transform([](auto& __i) -> decltype(auto) { return *__i; }, __current_); } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator& operator++() { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator& operator++() + { ranges::__tuple_for_each([](auto& __i) { ++__i; }, __current_); return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr void operator++(int) { ++*this; } + _LIBCPP_HIDE_FROM_ABI constexpr void operator++(int) { ++*this; } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator operator++(int) - requires __zip_all_forward<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator operator++(int) + requires __zip_all_forward<_Const, _Views...> + { auto __tmp = *this; ++*this; return __tmp; } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator& operator--() - requires __zip_all_bidirectional<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator& operator--() + requires __zip_all_bidirectional<_Const, _Views...> + { ranges::__tuple_for_each([](auto& __i) { --__i; }, __current_); return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator operator--(int) - requires __zip_all_bidirectional<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator operator--(int) + requires __zip_all_bidirectional<_Const, _Views...> + { auto __tmp = *this; --*this; return __tmp; } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator& operator+=(difference_type __x) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator& operator+=(difference_type __x) + requires __zip_all_random_access<_Const, _Views...> + { ranges::__tuple_for_each([&](_Iter& __i) { __i += iter_difference_t<_Iter>(__x); }, __current_); return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr __iterator& operator-=(difference_type __x) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr __iterator& operator-=(difference_type __x) + requires __zip_all_random_access<_Const, _Views...> + { ranges::__tuple_for_each([&](_Iter& __i) { __i -= iter_difference_t<_Iter>(__x); }, __current_); return *this; } - _LIBCPP_HIDE_FROM_ABI - constexpr auto operator[](difference_type __n) const - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI constexpr auto operator[](difference_type __n) const + requires __zip_all_random_access<_Const, _Views...> + { return ranges::__tuple_transform( [&](_Iter& __i) -> decltype(auto) { return __i[iter_difference_t<_Iter>(__n)]; }, __current_); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator==(const __iterator& __x, const __iterator& __y) - requires(equality_comparable>> && ...) { - if constexpr (__zip_all_bidirectional<_Const, _Views...>) { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __iterator& __x, const __iterator& __y) + requires(equality_comparable>> && ...) + { + if constexpr (__zip_all_bidirectional<_Const, _Views...>) + { return __x.__current_ == __y.__current_; - } else { + } + else + { return ranges::__tuple_any_equals(__x.__current_, __y.__current_); } } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator<(const __iterator& __x, const __iterator& __y) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator<(const __iterator& __x, const __iterator& __y) + requires __zip_all_random_access<_Const, _Views...> + { return __x.__current_ < __y.__current_; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator>(const __iterator& __x, const __iterator& __y) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator>(const __iterator& __x, const __iterator& __y) + requires __zip_all_random_access<_Const, _Views...> + { return __y < __x; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator<=(const __iterator& __x, const __iterator& __y) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator<=(const __iterator& __x, const __iterator& __y) + requires __zip_all_random_access<_Const, _Views...> + { return !(__y < __x); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr bool operator>=(const __iterator& __x, const __iterator& __y) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator>=(const __iterator& __x, const __iterator& __y) + requires __zip_all_random_access<_Const, _Views...> + { return !(__x < __y); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr auto operator<=>(const __iterator& __x, const __iterator& __y) - requires __zip_all_random_access<_Const, _Views...> && - (three_way_comparable>> && ...) { + _LIBCPP_HIDE_FROM_ABI friend constexpr auto operator<=>(const __iterator& __x, const __iterator& __y) + requires __zip_all_random_access<_Const, _Views...> + && (three_way_comparable>> && ...) + { return __x.__current_ <=> __y.__current_; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr __iterator operator+(const __iterator& __i, difference_type __n) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr __iterator operator+(const __iterator& __i, difference_type __n) + requires __zip_all_random_access<_Const, _Views...> + { auto __r = __i; __r += __n; return __r; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr __iterator operator+(difference_type __n, const __iterator& __i) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr __iterator operator+(difference_type __n, const __iterator& __i) + requires __zip_all_random_access<_Const, _Views...> + { return __i + __n; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr __iterator operator-(const __iterator& __i, difference_type __n) - requires __zip_all_random_access<_Const, _Views...> { + _LIBCPP_HIDE_FROM_ABI friend constexpr __iterator operator-(const __iterator& __i, difference_type __n) + requires __zip_all_random_access<_Const, _Views...> + { auto __r = __i; __r -= __n; return __r; } - _LIBCPP_HIDE_FROM_ABI - friend constexpr difference_type operator-(const __iterator& __x, const __iterator& __y) - requires(sized_sentinel_for>, iterator_t<__maybe_const<_Const, _Views>>> && - ...) { + _LIBCPP_HIDE_FROM_ABI friend constexpr difference_type operator-(const __iterator& __x, const __iterator& __y) + requires( + sized_sentinel_for>, iterator_t<__maybe_const<_Const, _Views>>> && ...) + { const auto __diffs = ranges::__tuple_zip_transform(minus<>(), __x.__current_, __y.__current_); return std::apply( [](auto... __ds) { - return ranges::min({difference_type(__ds)...}, - [](auto __a, auto __b) { return ranges::__abs(__a) < ranges::__abs(__b); }); + return ranges::min({difference_type(__ds)...}, [](auto __a, auto __b) { + return ranges::__abs(__a) < ranges::__abs(__b); + }); }, __diffs); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr auto iter_move(const __iterator& __i) noexcept( - (noexcept(ranges::iter_move(declval>&>())) && ...) && - (is_nothrow_move_constructible_v>> && ...)) { + _LIBCPP_HIDE_FROM_ABI friend constexpr auto iter_move(const __iterator& __i) noexcept( + (noexcept(ranges::iter_move(declval>&>())) && ...) + && (is_nothrow_move_constructible_v>> && ...)) + { return ranges::__tuple_transform(ranges::iter_move, __i.__current_); } - _LIBCPP_HIDE_FROM_ABI - friend constexpr void iter_swap(const __iterator& __l, const __iterator& __r) noexcept( - (noexcept(ranges::iter_swap(declval>&>(), - declval>&>())) && - ...)) - requires(indirectly_swappable>> && ...) { + _LIBCPP_HIDE_FROM_ABI friend constexpr void iter_swap(const __iterator& __l, const __iterator& __r) noexcept(( + noexcept(ranges::iter_swap( + declval>&>(), + declval>&>())) + && ...)) + requires(indirectly_swappable>> && ...) + { ranges::__tuple_zip_for_each(ranges::iter_swap, __l.__current_, __r.__current_); } }; @@ -420,60 +461,66 @@ template requires(view<_Views> && ...) && (sizeof...(_Views) > 0) template -class zip_view<_Views...>::__sentinel { - +class zip_view<_Views...>::__sentinel +{ __tuple_or_pair>...> __end_; - _LIBCPP_HIDE_FROM_ABI - constexpr explicit __sentinel(__tuple_or_pair>...> __end) : __end_(__end) {} + _LIBCPP_HIDE_FROM_ABI constexpr explicit __sentinel( + __tuple_or_pair>...> __end) + : __end_(__end) + {} friend class zip_view<_Views...>; // hidden friend cannot access private member of iterator because they are friends of friends template _LIBCPP_HIDE_FROM_ABI static constexpr decltype(auto) - __iter_current(zip_view<_Views...>::__iterator<_OtherConst> const& __it) { + __iter_current(zip_view<_Views...>::__iterator<_OtherConst> const& __it) + { return (__it.__current_); } public: - _LIBCPP_HIDE_FROM_ABI - __sentinel() = default; + _LIBCPP_HIDE_FROM_ABI __sentinel() = default; - _LIBCPP_HIDE_FROM_ABI - constexpr __sentinel(__sentinel __i) + _LIBCPP_HIDE_FROM_ABI constexpr __sentinel(__sentinel __i) requires _Const && (convertible_to, sentinel_t<__maybe_const<_Const, _Views>>> && ...) - : __end_(std::move(__i.__end_)) {} + : __end_(std::move(__i.__end_)) + {} template - requires(sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> && - ...) - _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __iterator<_OtherConst>& __x, const __sentinel& __y) { + requires( + sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> && ...) + _LIBCPP_HIDE_FROM_ABI friend constexpr bool operator==(const __iterator<_OtherConst>& __x, const __sentinel& __y) + { return ranges::__tuple_any_equals(__iter_current(__x), __y.__end_); } template requires( - sized_sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> && - ...) + sized_sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> + && ...) _LIBCPP_HIDE_FROM_ABI friend constexpr common_type_t>...> - operator-(const __iterator<_OtherConst>& __x, const __sentinel& __y) { + operator-(const __iterator<_OtherConst>& __x, const __sentinel& __y) + { const auto __diffs = ranges::__tuple_zip_transform(minus<>(), __iter_current(__x), __y.__end_); return std::apply( [](auto... __ds) { using _Diff = common_type_t>...>; - return ranges::min({_Diff(__ds)...}, - [](auto __a, auto __b) { return ranges::__abs(__a) < ranges::__abs(__b); }); + return ranges::min({_Diff(__ds)...}, [](auto __a, auto __b) { + return ranges::__abs(__a) < ranges::__abs(__b); + }); }, __diffs); } template requires( - sized_sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> && - ...) + sized_sentinel_for>, iterator_t<__maybe_const<_OtherConst, _Views>>> + && ...) _LIBCPP_HIDE_FROM_ABI friend constexpr common_type_t>...> - operator-(const __sentinel& __y, const __iterator<_OtherConst>& __x) { + operator-(const __sentinel& __y, const __iterator<_OtherConst>& __x) + { return -(__x - __y); } }; @@ -481,24 +528,29 @@ template inline constexpr bool enable_borrowed_range> = (enable_borrowed_range<_Views> && ...); -namespace views { -namespace __zip { - -struct __fn { - _LIBCPP_HIDE_FROM_ABI constexpr auto operator()() const noexcept { return empty_view>{}; } - - template - _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Ranges&&... rs) const - noexcept(noexcept(zip_view...>(std::forward<_Ranges>(rs)...))) - -> decltype(zip_view...>(std::forward<_Ranges>(rs)...)) { - return zip_view...>(std::forward<_Ranges>(rs)...); - } -}; - -} // namespace __zip -inline namespace __cpo { - inline constexpr auto zip = __zip::__fn{}; -} // namespace __cpo +namespace views +{ + namespace __zip + { + + struct __fn + { + _LIBCPP_HIDE_FROM_ABI constexpr auto operator()() const noexcept { return empty_view>{}; } + + template + _LIBCPP_HIDE_FROM_ABI constexpr auto + operator()(_Ranges&&... rs) const noexcept(noexcept(zip_view...>(std::forward<_Ranges>(rs)...))) + -> decltype(zip_view...>(std::forward<_Ranges>(rs)...)) + { + return zip_view...>(std::forward<_Ranges>(rs)...); + } + }; + + } // namespace __zip + inline namespace __cpo + { + inline constexpr auto zip = __zip::__fn{}; + } // namespace __cpo } // namespace views } // namespace ranges diff --git a/libcxx/include/string b/libcxx/include/string --- a/libcxx/include/string +++ b/libcxx/include/string @@ -533,7 +533,7 @@ #include <__utility/unreachable.h> #include #include -#include // EOF +#include // EOF #include #include #include @@ -571,55 +571,51 @@ _LIBCPP_PUSH_MACROS #include <__undef_macros> - _LIBCPP_BEGIN_NAMESPACE_STD // basic_string -template -basic_string<_CharT, _Traits, _Allocator> -_LIBCPP_CONSTEXPR_AFTER_CXX17 -operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, - const basic_string<_CharT, _Traits, _Allocator>& __y); +template +basic_string<_CharT, _Traits, _Allocator> _LIBCPP_CONSTEXPR_AFTER_CXX17 +operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, const basic_string<_CharT, _Traits, _Allocator>& __y); -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(const _CharT* __x, const basic_string<_CharT,_Traits,_Allocator>& __y); +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(const _CharT* __x, const basic_string<_CharT, _Traits, _Allocator>& __y); -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(_CharT __x, const basic_string<_CharT,_Traits,_Allocator>& __y); +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(_CharT __x, const basic_string<_CharT, _Traits, _Allocator>& __y); -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, const _CharT* __y); -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(const basic_string<_CharT, _Traits, _Allocator>& __x, _CharT __y); -_LIBCPP_EXTERN_TEMPLATE(_LIBCPP_FUNC_VIS string operator+, allocator >(char const*, string const&)) +_LIBCPP_EXTERN_TEMPLATE( + _LIBCPP_FUNC_VIS string operator+, allocator >(char const*, string const&)) template -struct __string_is_trivial_iterator : public false_type {}; +struct __string_is_trivial_iterator : public false_type +{}; template -struct __string_is_trivial_iterator<_Tp*> - : public is_arithmetic<_Tp> {}; +struct __string_is_trivial_iterator<_Tp*> : public is_arithmetic<_Tp> +{}; template -struct __string_is_trivial_iterator<__wrap_iter<_Iter> > - : public __string_is_trivial_iterator<_Iter> {}; +struct __string_is_trivial_iterator<__wrap_iter<_Iter> > : public __string_is_trivial_iterator<_Iter> +{}; template -struct __can_be_converted_to_string_view : public _BoolConstant< - is_convertible >::value && - !is_convertible::value - > {}; +struct __can_be_converted_to_string_view + : public _BoolConstant< + is_convertible >::value + && !is_convertible::value > +{}; #ifndef _LIBCPP_HAS_NO_CHAR8_T typedef basic_string u8string; @@ -630,1356 +626,1331 @@ typedef basic_string u32string; #endif -struct __uninitialized_size_tag {}; +struct __uninitialized_size_tag +{}; -template -class - _LIBCPP_TEMPLATE_VIS +template +class _LIBCPP_TEMPLATE_VIS #ifndef _LIBCPP_HAS_NO_CHAR8_T - _LIBCPP_PREFERRED_NAME(u8string) +_LIBCPP_PREFERRED_NAME(u8string) #endif #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS - _LIBCPP_PREFERRED_NAME(u16string) - _LIBCPP_PREFERRED_NAME(u32string) + _LIBCPP_PREFERRED_NAME(u16string) _LIBCPP_PREFERRED_NAME(u32string) #endif - basic_string + basic_string { public: - typedef basic_string __self; - typedef basic_string_view<_CharT, _Traits> __self_view; - typedef _Traits traits_type; - typedef _CharT value_type; - typedef _Allocator allocator_type; - typedef allocator_traits __alloc_traits; - typedef typename __alloc_traits::size_type size_type; - typedef typename __alloc_traits::difference_type difference_type; - typedef value_type& reference; - typedef const value_type& const_reference; - typedef typename __alloc_traits::pointer pointer; - typedef typename __alloc_traits::const_pointer const_pointer; - - static_assert((!is_array::value), "Character type of basic_string must not be an array"); - static_assert(( is_standard_layout::value), "Character type of basic_string must be standard-layout"); - static_assert(( is_trivial::value), "Character type of basic_string must be trivial"); - static_assert(( is_same<_CharT, typename traits_type::char_type>::value), - "traits_type::char_type must be the same type as CharT"); - static_assert(( is_same::value), - "Allocator::value_type must be same type as value_type"); - - typedef __wrap_iter iterator; - typedef __wrap_iter const_iterator; - typedef std::reverse_iterator reverse_iterator; - typedef std::reverse_iterator const_reverse_iterator; + typedef basic_string __self; + typedef basic_string_view<_CharT, _Traits> __self_view; + typedef _Traits traits_type; + typedef _CharT value_type; + typedef _Allocator allocator_type; + typedef allocator_traits __alloc_traits; + typedef typename __alloc_traits::size_type size_type; + typedef typename __alloc_traits::difference_type difference_type; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename __alloc_traits::pointer pointer; + typedef typename __alloc_traits::const_pointer const_pointer; + + static_assert((!is_array::value), "Character type of basic_string must not be an array"); + static_assert((is_standard_layout::value), "Character type of basic_string must be standard-layout"); + static_assert((is_trivial::value), "Character type of basic_string must be trivial"); + static_assert( + (is_same<_CharT, typename traits_type::char_type>::value), + "traits_type::char_type must be the same type as CharT"); + static_assert( + (is_same::value), + "Allocator::value_type must be same type as value_type"); + + typedef __wrap_iter iterator; + typedef __wrap_iter const_iterator; + typedef std::reverse_iterator reverse_iterator; + typedef std::reverse_iterator const_reverse_iterator; private: - #ifdef _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT - struct __long - { - pointer __data_; - size_type __size_; - size_type __cap_ : sizeof(size_type) * CHAR_BIT - 1; - size_type __is_long_ : 1; - }; - - enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ? - (sizeof(__long) - 1)/sizeof(value_type) : 2}; - - struct __short - { - value_type __data_[__min_cap]; - unsigned char __padding[sizeof(value_type) - 1]; - unsigned char __size_ : 7; - unsigned char __is_long_ : 1; - }; + struct __long + { + pointer __data_; + size_type __size_; + size_type __cap_ : sizeof(size_type) * CHAR_BIT - 1; + size_type __is_long_ : 1; + }; -// The __endian_factor is required because the field we use to store the size -// (either size_type or unsigned char depending on long/short) has one fewer -// bit than it would if it were not a bitfield. -// -// If the LSB is used to store the short-flag in the short string representation, -// we have to multiply the size by two when it is stored and divide it by two when -// it is loaded to make sure that we always store an even number. In the long string -// representation, we can ignore this because we can assume that we always allocate -// an even amount of value_types. -// -// If the MSB is used for the short-flag, the max_size() is numeric_limits::max() / 2. -// This does not impact the short string representation, since we never need the MSB -// for representing the size of a short string anyway. + enum + { + __min_cap = (sizeof(__long) - 1) / sizeof(value_type) > 2 ? (sizeof(__long) - 1) / sizeof(value_type) : 2 + }; -#ifdef _LIBCPP_BIG_ENDIAN - static const size_type __endian_factor = 2; -#else - static const size_type __endian_factor = 1; -#endif + struct __short + { + value_type __data_[__min_cap]; + unsigned char __padding[sizeof(value_type) - 1]; + unsigned char __size_ : 7; + unsigned char __is_long_ : 1; + }; + + // The __endian_factor is required because the field we use to store the size + // (either size_type or unsigned char depending on long/short) has one fewer + // bit than it would if it were not a bitfield. + // + // If the LSB is used to store the short-flag in the short string representation, + // we have to multiply the size by two when it is stored and divide it by two when + // it is loaded to make sure that we always store an even number. In the long string + // representation, we can ignore this because we can assume that we always allocate + // an even amount of value_types. + // + // If the MSB is used for the short-flag, the max_size() is numeric_limits::max() / 2. + // This does not impact the short string representation, since we never need the MSB + // for representing the size of a short string anyway. + +# ifdef _LIBCPP_BIG_ENDIAN + static const size_type __endian_factor = 2; +# else + static const size_type __endian_factor = 1; +# endif #else // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT -#ifdef _LIBCPP_BIG_ENDIAN - static const size_type __endian_factor = 1; -#else - static const size_type __endian_factor = 2; -#endif +# ifdef _LIBCPP_BIG_ENDIAN + static const size_type __endian_factor = 1; +# else + static const size_type __endian_factor = 2; +# endif - struct __long - { - size_type __is_long_ : 1; - size_type __cap_ : sizeof(size_type) * CHAR_BIT - 1; - size_type __size_; - pointer __data_; - }; + struct __long + { + size_type __is_long_ : 1; + size_type __cap_ : sizeof(size_type) * CHAR_BIT - 1; + size_type __size_; + pointer __data_; + }; - enum {__min_cap = (sizeof(__long) - 1)/sizeof(value_type) > 2 ? - (sizeof(__long) - 1)/sizeof(value_type) : 2}; + enum + { + __min_cap = (sizeof(__long) - 1) / sizeof(value_type) > 2 ? (sizeof(__long) - 1) / sizeof(value_type) : 2 + }; - struct __short + struct __short + { + union { - union - { - struct { - unsigned char __is_long_ : 1; - unsigned char __size_ : 7; - }; - value_type __lx; - }; - value_type __data_[__min_cap]; + struct + { + unsigned char __is_long_ : 1; + unsigned char __size_ : 7; + }; + value_type __lx; }; + value_type __data_[__min_cap]; + }; #endif // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT - union __ulx{__long __lx; __short __lxx;}; + union __ulx + { + __long __lx; + __short __lxx; + }; - enum {__n_words = sizeof(__ulx) / sizeof(size_type)}; + enum + { + __n_words = sizeof(__ulx) / sizeof(size_type) + }; - struct __raw - { - size_type __words[__n_words]; - }; + struct __raw + { + size_type __words[__n_words]; + }; - struct __rep + struct __rep + { + union { - union - { - __long __l; - __short __s; - __raw __r; - }; + __long __l; + __short __s; + __raw __r; }; + }; - __compressed_pair<__rep, allocator_type> __r_; - - // Construct a string with the given allocator and enough storage to hold `__size` characters, but - // don't initialize the characters. The contents of the string, including the null terminator, must be - // initialized separately. - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - explicit basic_string(__uninitialized_size_tag, size_type __size, const allocator_type& __a) - : __r_(__default_init_tag(), __a) { - if (__size > max_size()) - __throw_length_error(); - if (__fits_in_sso(__size)) { - __zero(); - __set_short_size(__size); - } else { - auto __capacity = __recommend(__size) + 1; - auto __allocation = __alloc_traits::allocate(__alloc(), __capacity); - __begin_lifetime(__allocation, __capacity); - __set_long_cap(__capacity); - __set_long_pointer(__allocation); - __set_long_size(__size); - } - std::__debug_db_insert_c(this); + __compressed_pair<__rep, allocator_type> __r_; + + // Construct a string with the given allocator and enough storage to hold `__size` characters, but + // don't initialize the characters. The contents of the string, including the null terminator, must be + // initialized separately. + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit basic_string( + __uninitialized_size_tag, size_type __size, const allocator_type& __a) + : __r_(__default_init_tag(), __a) + { + if (__size > max_size()) + __throw_length_error(); + if (__fits_in_sso(__size)) + { + __zero(); + __set_short_size(__size); } + else + { + auto __capacity = __recommend(__size) + 1; + auto __allocation = __alloc_traits::allocate(__alloc(), __capacity); + __begin_lifetime(__allocation, __capacity); + __set_long_cap(__capacity); + __set_long_pointer(__allocation); + __set_long_size(__size); + } + std::__debug_db_insert_c(this); + } public: - _LIBCPP_TEMPLATE_DATA_VIS - static const size_type npos = -1; + _LIBCPP_TEMPLATE_DATA_VIS static const size_type npos = -1; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string() - _NOEXCEPT_(is_nothrow_default_constructible::value); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string() _NOEXCEPT_(is_nothrow_default_constructible::value); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit basic_string(const allocator_type& __a) + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit basic_string(const allocator_type& __a) #if _LIBCPP_STD_VER <= 14 - _NOEXCEPT_(is_nothrow_copy_constructible::value); + _NOEXCEPT_(is_nothrow_copy_constructible::value); #else - _NOEXCEPT; + _NOEXCEPT; #endif - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const basic_string& __str); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const basic_string& __str, const allocator_type& __a); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const basic_string& __str); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const basic_string& __str, const allocator_type& __a); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(basic_string&& __str) -#if _LIBCPP_STD_VER <= 14 - _NOEXCEPT_(is_nothrow_move_constructible::value); -#else - _NOEXCEPT; -#endif - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(basic_string&& __str, const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(basic_string&& __str) +# if _LIBCPP_STD_VER <= 14 + _NOEXCEPT_(is_nothrow_move_constructible::value); +# else + _NOEXCEPT; +# endif + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(basic_string&& __str, const allocator_type& __a); #endif // _LIBCPP_CXX03_LANG - template ::value, nullptr_t> > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const _CharT* __s) : __r_(__default_init_tag(), __default_init_tag()) { - _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr"); - __init(__s, traits_type::length(__s)); - std::__debug_db_insert_c(this); - } + template ::value, nullptr_t> > + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const _CharT* __s) + : __r_(__default_init_tag(), __default_init_tag()) + { + _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr"); + __init(__s, traits_type::length(__s)); + std::__debug_db_insert_c(this); + } - template ::value, nullptr_t> > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const _CharT* __s, const _Allocator& __a); + template ::value, nullptr_t> > + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const _CharT* __s, const _Allocator& __a); #if _LIBCPP_STD_VER > 20 - basic_string(nullptr_t) = delete; + basic_string(nullptr_t) = delete; #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const _CharT* __s, size_type __n); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const _CharT* __s, size_type __n, const _Allocator& __a); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(size_type __n, _CharT __c); - - template ::value, nullptr_t> > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(size_type __n, _CharT __c, const _Allocator& __a); - - _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const basic_string& __str, size_type __pos, size_type __n, - const _Allocator& __a = _Allocator()); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const basic_string& __str, size_type __pos, - const _Allocator& __a = _Allocator()); - - template::value && !__is_same_uncvref<_Tp, basic_string>::value> > - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(const _Tp& __t, size_type __pos, size_type __n, - const allocator_type& __a = allocator_type()); - - template::value && - !__is_same_uncvref<_Tp, basic_string>::value> > - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - explicit basic_string(const _Tp& __t); - - template::value && !__is_same_uncvref<_Tp, basic_string>::value> > - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - explicit basic_string(const _Tp& __t, const allocator_type& __a); - - template::value> > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(_InputIterator __first, _InputIterator __last); - template::value> > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(_InputIterator __first, _InputIterator __last, const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(const _CharT* __s, size_type __n); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(const _CharT* __s, size_type __n, const _Allocator& __a); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(size_type __n, _CharT __c); + + template ::value, nullptr_t> > + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(size_type __n, _CharT __c, const _Allocator& __a); + + _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(const basic_string& __str, size_type __pos, size_type __n, const _Allocator& __a = _Allocator()); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(const basic_string& __str, size_type __pos, const _Allocator& __a = _Allocator()); + + template < + class _Tp, + class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string>::value> > + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(const _Tp& __t, size_type __pos, size_type __n, const allocator_type& __a = allocator_type()); + + template < + class _Tp, + class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string>::value> > + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit basic_string( + const _Tp& __t); + + template < + class _Tp, + class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string>::value> > + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit basic_string( + const _Tp& __t, const allocator_type& __a); + + template ::value> > + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(_InputIterator __first, _InputIterator __last); + template ::value> > + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(_InputIterator __first, _InputIterator __last, const allocator_type& __a); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(initializer_list<_CharT> __il); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string(initializer_list<_CharT> __il, const _Allocator& __a); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string(initializer_list<_CharT> __il); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + basic_string(initializer_list<_CharT> __il, const _Allocator& __a); #endif // _LIBCPP_CXX03_LANG - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 ~basic_string(); + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 ~basic_string(); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - operator __self_view() const _NOEXCEPT { return __self_view(data(), size()); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 operator __self_view() const _NOEXCEPT + { + return __self_view(data(), size()); + } - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(const basic_string& __str); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(const basic_string& __str); - template ::value && - !__is_same_uncvref<_Tp, basic_string>::value> > - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(const _Tp& __t) { - __self_view __sv = __t; - return assign(__sv); - } + template < + class _Tp, + class = __enable_if_t<__can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string>::value> > + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(const _Tp& __t) + { + __self_view __sv = __t; + return assign(__sv); + } #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& operator=(basic_string&& __str) - _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& operator=(initializer_list __il) {return assign(__il.begin(), __il.size());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + operator=(basic_string&& __str) _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(initializer_list __il) + { + return assign(__il.begin(), __il.size()); + } #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& operator=(const value_type* __s) {return assign(__s);} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(const value_type* __s) + { + return assign(__s); + } #if _LIBCPP_STD_VER > 20 - basic_string& operator=(nullptr_t) = delete; + basic_string& operator=(nullptr_t) = delete; #endif - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(value_type __c); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator=(value_type __c); #if _LIBCPP_DEBUG_LEVEL == 2 - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator begin() _NOEXCEPT - {return iterator(this, __get_pointer());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator begin() const _NOEXCEPT - {return const_iterator(this, __get_pointer());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator end() _NOEXCEPT - {return iterator(this, __get_pointer() + size());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator end() const _NOEXCEPT - {return const_iterator(this, __get_pointer() + size());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator begin() _NOEXCEPT + { + return iterator(this, __get_pointer()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator begin() const _NOEXCEPT + { + return const_iterator(this, __get_pointer()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator end() _NOEXCEPT + { + return iterator(this, __get_pointer() + size()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator end() const _NOEXCEPT + { + return const_iterator(this, __get_pointer() + size()); + } #else - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator begin() _NOEXCEPT - {return iterator(__get_pointer());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator begin() const _NOEXCEPT - {return const_iterator(__get_pointer());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator end() _NOEXCEPT - {return iterator(__get_pointer() + size());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator end() const _NOEXCEPT - {return const_iterator(__get_pointer() + size());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator begin() _NOEXCEPT { return iterator(__get_pointer()); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator begin() const _NOEXCEPT + { + return const_iterator(__get_pointer()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator end() _NOEXCEPT + { + return iterator(__get_pointer() + size()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator end() const _NOEXCEPT + { + return const_iterator(__get_pointer() + size()); + } #endif // _LIBCPP_DEBUG_LEVEL == 2 - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - reverse_iterator rbegin() _NOEXCEPT - {return reverse_iterator(end());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_reverse_iterator rbegin() const _NOEXCEPT - {return const_reverse_iterator(end());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - reverse_iterator rend() _NOEXCEPT - {return reverse_iterator(begin());} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_reverse_iterator rend() const _NOEXCEPT - {return const_reverse_iterator(begin());} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator cbegin() const _NOEXCEPT - {return begin();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_iterator cend() const _NOEXCEPT - {return end();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_reverse_iterator crbegin() const _NOEXCEPT - {return rbegin();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_reverse_iterator crend() const _NOEXCEPT - {return rend();} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type size() const _NOEXCEPT - {return __is_long() ? __get_long_size() : __get_short_size();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type length() const _NOEXCEPT {return size();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type max_size() const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type capacity() const _NOEXCEPT { - return (__is_long() ? __get_long_cap() : static_cast(__min_cap)) - 1; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reverse_iterator rbegin() _NOEXCEPT + { + return reverse_iterator(end()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reverse_iterator rbegin() const _NOEXCEPT + { + return const_reverse_iterator(end()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reverse_iterator rend() _NOEXCEPT + { + return reverse_iterator(begin()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reverse_iterator rend() const _NOEXCEPT + { + return const_reverse_iterator(begin()); + } - _LIBCPP_CONSTEXPR_AFTER_CXX17 void resize(size_type __n, value_type __c); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void resize(size_type __n) { resize(__n, value_type()); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator cbegin() const _NOEXCEPT { return begin(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_iterator cend() const _NOEXCEPT { return end(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reverse_iterator crbegin() const _NOEXCEPT + { + return rbegin(); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reverse_iterator crend() const _NOEXCEPT { return rend(); } + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type size() const _NOEXCEPT + { + return __is_long() ? __get_long_size() : __get_short_size(); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type length() const _NOEXCEPT { return size(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type max_size() const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type capacity() const _NOEXCEPT + { + return (__is_long() ? __get_long_cap() : static_cast(__min_cap)) - 1; + } + + _LIBCPP_CONSTEXPR_AFTER_CXX17 void resize(size_type __n, value_type __c); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void resize(size_type __n) { resize(__n, value_type()); } - _LIBCPP_CONSTEXPR_AFTER_CXX17 void reserve(size_type __requested_capacity); + _LIBCPP_CONSTEXPR_AFTER_CXX17 void reserve(size_type __requested_capacity); #if _LIBCPP_STD_VER > 20 - template - _LIBCPP_HIDE_FROM_ABI constexpr - void resize_and_overwrite(size_type __n, _Op __op) { - __resize_default_init(__n); - __erase_to_end(std::move(__op)(data(), _LIBCPP_AUTO_CAST(__n))); - } + template + _LIBCPP_HIDE_FROM_ABI constexpr void resize_and_overwrite(size_type __n, _Op __op) + { + __resize_default_init(__n); + __erase_to_end(std::move(__op)(data(), _LIBCPP_AUTO_CAST(__n))); + } #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __resize_default_init(size_type __n); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __resize_default_init(size_type __n); - _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI void reserve() _NOEXCEPT { shrink_to_fit(); } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void shrink_to_fit() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void clear() _NOEXCEPT; + _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI void reserve() _NOEXCEPT { shrink_to_fit(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void shrink_to_fit() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void clear() _NOEXCEPT; - _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - bool empty() const _NOEXCEPT {return size() == 0;} + _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool empty() const _NOEXCEPT + { + return size() == 0; + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_reference operator[](size_type __pos) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference operator[](size_type __pos) _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference operator[](size_type __pos) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference operator[](size_type __pos) _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference at(size_type __n) const; - _LIBCPP_CONSTEXPR_AFTER_CXX17 reference at(size_type __n); + _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference at(size_type __n) const; + _LIBCPP_CONSTEXPR_AFTER_CXX17 reference at(size_type __n); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(const basic_string& __str) { - return append(__str); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(const basic_string& __str) + { + return append(__str); + } - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string >::value, - basic_string& - > - operator+=(const _Tp& __t) { - __self_view __sv = __t; return append(__sv); - } + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string >::value, + basic_string& > + operator+=(const _Tp& __t) + { + __self_view __sv = __t; + return append(__sv); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(const value_type* __s) { - return append(__s); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(const value_type* __s) + { + return append(__s); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(value_type __c) { - push_back(__c); - return *this; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(value_type __c) + { + push_back(__c); + return *this; + } #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& operator+=(initializer_list __il) { return append(__il); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& operator+=(initializer_list __il) + { + return append(__il); + } #endif // _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& append(const basic_string& __str); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t< - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string>::value, - basic_string& - > - append(const _Tp& __t) { __self_view __sv = __t; return append(__sv.data(), __sv.size()); } - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const basic_string& __str, size_type __pos, size_type __n=npos); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string>::value, - basic_string& - > - append(const _Tp& __t, size_type __pos, size_type __n=npos); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const value_type* __s, size_type __n); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const value_type* __s); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(size_type __n, value_type __c); - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __append_default_init(size_type __n); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS - __enable_if_t - < - __is_exactly_cpp17_input_iterator<_InputIterator>::value, - basic_string& - > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - append(_InputIterator __first, _InputIterator __last) { - const basic_string __temp(__first, __last, __alloc()); - append(__temp.data(), __temp.size()); - return *this; - } - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS - __enable_if_t - < - __is_cpp17_forward_iterator<_ForwardIterator>::value, - basic_string& - > - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - append(_ForwardIterator __first, _ForwardIterator __last); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const basic_string& __str); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + basic_string& > + append(const _Tp& __t) + { + __self_view __sv = __t; + return append(__sv.data(), __sv.size()); + } + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const basic_string& __str, size_type __pos, size_type __n = npos); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + basic_string& > + append(const _Tp& __t, size_type __pos, size_type __n = npos); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const value_type* __s, size_type __n); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(const value_type* __s); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(size_type __n, value_type __c); + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __append_default_init(size_type __n); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS __enable_if_t< + __is_exactly_cpp17_input_iterator<_InputIterator>::value, + basic_string& > _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + append(_InputIterator __first, _InputIterator __last) + { + const basic_string __temp(__first, __last, __alloc()); + append(__temp.data(), __temp.size()); + return *this; + } + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS __enable_if_t< + __is_cpp17_forward_iterator<_ForwardIterator>::value, + basic_string& > _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 + append(_ForwardIterator __first, _ForwardIterator __last); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& append(initializer_list __il) {return append(__il.begin(), __il.size());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& append(initializer_list __il) + { + return append(__il.begin(), __il.size()); + } #endif // _LIBCPP_CXX03_LANG - _LIBCPP_CONSTEXPR_AFTER_CXX17 void push_back(value_type __c); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void pop_back(); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference front() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference front() const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference back() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference back() const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - basic_string& - > - assign(const _Tp & __t) { __self_view __sv = __t; return assign(__sv.data(), __sv.size()); } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& assign(const basic_string& __str) { return *this = __str; } + _LIBCPP_CONSTEXPR_AFTER_CXX17 void push_back(value_type __c); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void pop_back(); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference front() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference front() const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 reference back() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_reference back() const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, basic_string& > + assign(const _Tp& __t) + { + __self_view __sv = __t; + return assign(__sv.data(), __sv.size()); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const basic_string& __str) + { + return *this = __str; + } #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& assign(basic_string&& __str) - _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) - {*this = std::move(__str); return *this;} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + assign(basic_string&& __str) _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) + { + *this = std::move(__str); + return *this; + } #endif - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const basic_string& __str, size_type __pos, size_type __n=npos); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string>::value, - basic_string& - > - assign(const _Tp & __t, size_type __pos, size_type __n=npos); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const value_type* __s, size_type __n); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const value_type* __s); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(size_type __n, value_type __c); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_exactly_cpp17_input_iterator<_InputIterator>::value, - basic_string& - > - assign(_InputIterator __first, _InputIterator __last); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_cpp17_forward_iterator<_ForwardIterator>::value, - basic_string& - > - assign(_ForwardIterator __first, _ForwardIterator __last); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const basic_string& __str, size_type __pos, size_type __n = npos); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + basic_string& > + assign(const _Tp& __t, size_type __pos, size_type __n = npos); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const value_type* __s, size_type __n); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(const value_type* __s); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(size_type __n, value_type __c); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __is_exactly_cpp17_input_iterator<_InputIterator>::value, basic_string& > + assign(_InputIterator __first, _InputIterator __last); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value, basic_string& > + assign(_ForwardIterator __first, _ForwardIterator __last); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& assign(initializer_list __il) {return assign(__il.begin(), __il.size());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& assign(initializer_list __il) + { + return assign(__il.begin(), __il.size()); + } #endif // _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& insert(size_type __pos1, const basic_string& __str); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - basic_string& - > - insert(size_type __pos1, const _Tp& __t) - { __self_view __sv = __t; return insert(__pos1, __sv.data(), __sv.size()); } - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, - basic_string& - > - insert(size_type __pos1, const _Tp& __t, size_type __pos2, size_type __n=npos); - _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& insert(size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n=npos); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, const value_type* __s, size_type __n); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, const value_type* __s); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, size_type __n, value_type __c); - _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator insert(const_iterator __pos, value_type __c); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator insert(const_iterator __pos, size_type __n, value_type __c); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_exactly_cpp17_input_iterator<_InputIterator>::value, - iterator - > - insert(const_iterator __pos, _InputIterator __first, _InputIterator __last); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_cpp17_forward_iterator<_ForwardIterator>::value, - iterator - > - insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos1, const basic_string& __str); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, basic_string& > + insert(size_type __pos1, const _Tp& __t) + { + __self_view __sv = __t; + return insert(__pos1, __sv.data(), __sv.size()); + } + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + basic_string& > + insert(size_type __pos1, const _Tp& __t, size_type __pos2, size_type __n = npos); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + insert(size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n = npos); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, const value_type* __s, size_type __n); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, const value_type* __s); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& insert(size_type __pos, size_type __n, value_type __c); + _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator insert(const_iterator __pos, value_type __c); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator + insert(const_iterator __pos, size_type __n, value_type __c); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __is_exactly_cpp17_input_iterator<_InputIterator>::value, iterator > + insert(const_iterator __pos, _InputIterator __first, _InputIterator __last); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value, iterator > + insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator insert(const_iterator __pos, initializer_list __il) - {return insert(__pos, __il.begin(), __il.end());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator + insert(const_iterator __pos, initializer_list __il) + { + return insert(__pos, __il.begin(), __il.end()); + } #endif // _LIBCPP_CXX03_LANG - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& erase(size_type __pos = 0, size_type __n = npos); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator erase(const_iterator __pos); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - iterator erase(const_iterator __first, const_iterator __last); - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - basic_string& - > - replace(size_type __pos1, size_type __n1, const _Tp& __t) { __self_view __sv = __t; return replace(__pos1, __n1, __sv.data(), __sv.size()); } - _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2=npos); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, - basic_string& - > - replace(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos); - _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& replace(size_type __pos, size_type __n1, size_type __n2, value_type __c); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(const_iterator __i1, const_iterator __i2, const basic_string& __str); - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - basic_string& - > - replace(const_iterator __i1, const_iterator __i2, const _Tp& __t) { __self_view __sv = __t; return replace(__i1 - begin(), __i2 - __i1, __sv); } - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(const_iterator __i1, const_iterator __i2, const value_type* __s); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c); - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_cpp17_input_iterator<_InputIterator>::value, - basic_string& - > - replace(const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& erase(size_type __pos = 0, size_type __n = npos); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator erase(const_iterator __pos); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 iterator erase(const_iterator __first, const_iterator __last); + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(size_type __pos1, size_type __n1, const basic_string& __str); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, basic_string& > + replace(size_type __pos1, size_type __n1, const _Tp& __t) + { + __self_view __sv = __t; + return replace(__pos1, __n1, __sv.data(), __sv.size()); + } + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2 = npos); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + basic_string& > + replace(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2 = npos); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& replace(size_type __pos, size_type __n1, const value_type* __s); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& replace(size_type __pos, size_type __n1, size_type __n2, value_type __c); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(const_iterator __i1, const_iterator __i2, const basic_string& __str); + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, basic_string& > + replace(const_iterator __i1, const_iterator __i2, const _Tp& __t) + { + __self_view __sv = __t; + return replace(__i1 - begin(), __i2 - __i1, __sv); + } + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(const_iterator __i1, const_iterator __i2, const value_type* __s); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c); + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __is_cpp17_input_iterator<_InputIterator>::value, basic_string& > + replace(const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2); #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& replace(const_iterator __i1, const_iterator __i2, initializer_list __il) - {return replace(__i1, __i2, __il.begin(), __il.end());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + replace(const_iterator __i1, const_iterator __i2, initializer_list __il) + { + return replace(__i1, __i2, __il.begin(), __il.end()); + } #endif // _LIBCPP_CXX03_LANG - _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type copy(value_type* __s, size_type __n, size_type __pos = 0) const; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string substr(size_type __pos = 0, size_type __n = npos) const; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type copy(value_type* __s, size_type __n, size_type __pos = 0) const; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string + substr(size_type __pos = 0, size_type __n = npos) const; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void swap(basic_string& __str) + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void swap(basic_string& __str) #if _LIBCPP_STD_VER >= 14 - _NOEXCEPT; + _NOEXCEPT; #else - _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || - __is_nothrow_swappable::value); + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || __is_nothrow_swappable::value); #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const value_type* c_str() const _NOEXCEPT {return data();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const value_type* data() const _NOEXCEPT {return std::__to_address(__get_pointer());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const value_type* c_str() const _NOEXCEPT { return data(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const value_type* data() const _NOEXCEPT + { + return std::__to_address(__get_pointer()); + } #if _LIBCPP_STD_VER > 14 || defined(_LIBCPP_BUILDING_LIBRARY) - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - value_type* data() _NOEXCEPT {return std::__to_address(__get_pointer());} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 value_type* data() _NOEXCEPT + { + return std::__to_address(__get_pointer()); + } #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - allocator_type get_allocator() const _NOEXCEPT {return __alloc();} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - find(const _Tp& __t, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type find(value_type __c, size_type __pos = 0) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type rfind(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - rfind(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type rfind(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type rfind(value_type __c, size_type __pos = npos) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - find_first_of(const _Tp& __t, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - find_last_of(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_not_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - find_first_not_of(const _Tp &__t, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_not_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_first_not_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_not_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - size_type - > - find_last_not_of(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_not_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type find_last_not_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - int compare(const basic_string& __str) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - int - > - compare(const _Tp &__t) const _NOEXCEPT; - - template - _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - int - > - compare(size_type __pos1, size_type __n1, const _Tp& __t) const; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - int compare(size_type __pos1, size_type __n1, const basic_string& __str) const; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - int compare(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, - size_type __n2 = npos) const; - - template - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, - int - > - compare(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2=npos) const; - _LIBCPP_CONSTEXPR_AFTER_CXX17 int compare(const value_type* __s) const _NOEXCEPT; - _LIBCPP_CONSTEXPR_AFTER_CXX17 int compare(size_type __pos1, size_type __n1, const value_type* __s) const; - _LIBCPP_CONSTEXPR_AFTER_CXX17 - int compare(size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 allocator_type get_allocator() const _NOEXCEPT + { + return __alloc(); + } + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + find(const _Tp& __t, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type find(value_type __c, size_type __pos = 0) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + rfind(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + rfind(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + rfind(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type rfind(value_type __c, size_type __pos = npos) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + find_first_of(const _Tp& __t, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + find_last_of(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_not_of(const basic_string& __str, size_type __pos = 0) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + find_first_not_of(const _Tp& __t, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_not_of(const value_type* __s, size_type __pos = 0) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_first_not_of(value_type __c, size_type __pos = 0) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_not_of(const basic_string& __str, size_type __pos = npos) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, size_type > + find_last_not_of(const _Tp& __t, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_not_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_not_of(const value_type* __s, size_type __pos = npos) const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type + find_last_not_of(value_type __c, size_type __pos = npos) const _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 int compare(const basic_string& __str) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, int > + compare(const _Tp& __t) const _NOEXCEPT; + + template + _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS _LIBCPP_CONSTEXPR_AFTER_CXX17 + __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, int > + compare(size_type __pos1, size_type __n1, const _Tp& __t) const; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 int + compare(size_type __pos1, size_type __n1, const basic_string& __str) const; + _LIBCPP_CONSTEXPR_AFTER_CXX17 int + compare(size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2 = npos) const; + + template + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string>::value, + int > + compare(size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2 = npos) const; + _LIBCPP_CONSTEXPR_AFTER_CXX17 int compare(const value_type* __s) const _NOEXCEPT; + _LIBCPP_CONSTEXPR_AFTER_CXX17 int compare(size_type __pos1, size_type __n1, const value_type* __s) const; + _LIBCPP_CONSTEXPR_AFTER_CXX17 int + compare(size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const; #if _LIBCPP_STD_VER > 17 - constexpr _LIBCPP_HIDE_FROM_ABI - bool starts_with(__self_view __sv) const noexcept - { return __self_view(data(), size()).starts_with(__sv); } + constexpr _LIBCPP_HIDE_FROM_ABI bool starts_with(__self_view __sv) const noexcept + { + return __self_view(data(), size()).starts_with(__sv); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool starts_with(value_type __c) const noexcept - { return !empty() && _Traits::eq(front(), __c); } + constexpr _LIBCPP_HIDE_FROM_ABI bool starts_with(value_type __c) const noexcept + { + return !empty() && _Traits::eq(front(), __c); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool starts_with(const value_type* __s) const noexcept - { return starts_with(__self_view(__s)); } + constexpr _LIBCPP_HIDE_FROM_ABI bool starts_with(const value_type* __s) const noexcept + { + return starts_with(__self_view(__s)); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool ends_with(__self_view __sv) const noexcept - { return __self_view(data(), size()).ends_with( __sv); } + constexpr _LIBCPP_HIDE_FROM_ABI bool ends_with(__self_view __sv) const noexcept + { + return __self_view(data(), size()).ends_with(__sv); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool ends_with(value_type __c) const noexcept - { return !empty() && _Traits::eq(back(), __c); } + constexpr _LIBCPP_HIDE_FROM_ABI bool ends_with(value_type __c) const noexcept + { + return !empty() && _Traits::eq(back(), __c); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool ends_with(const value_type* __s) const noexcept - { return ends_with(__self_view(__s)); } + constexpr _LIBCPP_HIDE_FROM_ABI bool ends_with(const value_type* __s) const noexcept + { + return ends_with(__self_view(__s)); + } #endif #if _LIBCPP_STD_VER > 20 - constexpr _LIBCPP_HIDE_FROM_ABI - bool contains(__self_view __sv) const noexcept - { return __self_view(data(), size()).contains(__sv); } + constexpr _LIBCPP_HIDE_FROM_ABI bool contains(__self_view __sv) const noexcept + { + return __self_view(data(), size()).contains(__sv); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool contains(value_type __c) const noexcept - { return __self_view(data(), size()).contains(__c); } + constexpr _LIBCPP_HIDE_FROM_ABI bool contains(value_type __c) const noexcept + { + return __self_view(data(), size()).contains(__c); + } - constexpr _LIBCPP_HIDE_FROM_ABI - bool contains(const value_type* __s) const - { return __self_view(data(), size()).contains(__s); } + constexpr _LIBCPP_HIDE_FROM_ABI bool contains(const value_type* __s) const + { + return __self_view(data(), size()).contains(__s); + } #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool __invariants() const; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool __invariants() const; - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __clear_and_shrink() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __clear_and_shrink() _NOEXCEPT; #if _LIBCPP_DEBUG_LEVEL == 2 - bool __dereferenceable(const const_iterator* __i) const; - bool __decrementable(const const_iterator* __i) const; - bool __addable(const const_iterator* __i, ptrdiff_t __n) const; - bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const; + bool __dereferenceable(const const_iterator* __i) const; + bool __decrementable(const const_iterator* __i) const; + bool __addable(const const_iterator* __i, ptrdiff_t __n) const; + bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const; #endif // _LIBCPP_DEBUG_LEVEL == 2 private: - template - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - bool friend operator==(const basic_string, _Alloc>& __lhs, - const basic_string, _Alloc>& __rhs) _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __shrink_or_extend(size_type __target_capacity); - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - bool __is_long() const _NOEXCEPT { - if (__libcpp_is_constant_evaluated()) - return true; - return __r_.first().__s.__is_long_; - } + template + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool friend operator==( + const basic_string, _Alloc>& __lhs, + const basic_string, _Alloc>& __rhs) _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __shrink_or_extend(size_type __target_capacity); - static _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __begin_lifetime(pointer __begin, size_type __n) { + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool __is_long() const _NOEXCEPT + { + if (__libcpp_is_constant_evaluated()) + return true; + return __r_.first().__s.__is_long_; + } + + static _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __begin_lifetime(pointer __begin, size_type __n) + { #if _LIBCPP_STD_VER > 17 - if (__libcpp_is_constant_evaluated()) { - for (size_type __i = 0; __i != __n; ++__i) - std::construct_at(std::addressof(__begin[__i])); - } + if (__libcpp_is_constant_evaluated()) + { + for (size_type __i = 0; __i != __n; ++__i) + std::construct_at(std::addressof(__begin[__i])); + } #else - (void)__begin; - (void)__n; + (void)__begin; + (void)__n; #endif // _LIBCPP_STD_VER > 17 - } + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __default_init() { - __zero(); - if (__libcpp_is_constant_evaluated()) { - size_type __sz = __recommend(0) + 1; - pointer __ptr = __alloc_traits::allocate(__alloc(), __sz); - __begin_lifetime(__ptr, __sz); - __set_long_pointer(__ptr); - __set_long_cap(__sz); - __set_long_size(0); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __default_init() + { + __zero(); + if (__libcpp_is_constant_evaluated()) + { + size_type __sz = __recommend(0) + 1; + pointer __ptr = __alloc_traits::allocate(__alloc(), __sz); + __begin_lifetime(__ptr, __sz); + __set_long_pointer(__ptr); + __set_long_cap(__sz); + __set_long_size(0); } + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __deallocate_constexpr() { - if (__libcpp_is_constant_evaluated() && __get_pointer() != nullptr) - __alloc_traits::deallocate(__alloc(), __get_pointer(), __get_long_cap()); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __deallocate_constexpr() + { + if (__libcpp_is_constant_evaluated() && __get_pointer() != nullptr) + __alloc_traits::deallocate(__alloc(), __get_pointer(), __get_long_cap()); + } - _LIBCPP_CONSTEXPR _LIBCPP_HIDE_FROM_ABI static bool __fits_in_sso(size_type __sz) { - // SSO is disabled during constant evaluation because `__is_long` isn't constexpr friendly - return !__libcpp_is_constant_evaluated() && (__sz < __min_cap); + _LIBCPP_CONSTEXPR _LIBCPP_HIDE_FROM_ABI static bool __fits_in_sso(size_type __sz) + { + // SSO is disabled during constant evaluation because `__is_long` isn't constexpr friendly + return !__libcpp_is_constant_evaluated() && (__sz < __min_cap); + } + + template + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 iterator + __insert_from_safe_copy(size_type __n, size_type __ip, _ForwardIterator __first, _ForwardIterator __last) + { + size_type __sz = size(); + size_type __cap = capacity(); + value_type* __p; + if (__cap - __sz >= __n) + { + __p = std::__to_address(__get_pointer()); + size_type __n_move = __sz - __ip; + if (__n_move != 0) + traits_type::move(__p + __ip + __n, __p + __ip, __n_move); } + else + { + __grow_by(__cap, __sz + __n - __cap, __sz, __ip, 0, __n); + __p = std::__to_address(__get_long_pointer()); + } + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); + for (__p += __ip; __first != __last; ++__p, ++__first) + traits_type::assign(*__p, *__first); - template - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 - iterator __insert_from_safe_copy(size_type __n, size_type __ip, _ForwardIterator __first, _ForwardIterator __last) { - size_type __sz = size(); - size_type __cap = capacity(); - value_type* __p; - if (__cap - __sz >= __n) - { - __p = std::__to_address(__get_pointer()); - size_type __n_move = __sz - __ip; - if (__n_move != 0) - traits_type::move(__p + __ip + __n, __p + __ip, __n_move); - } - else - { - __grow_by(__cap, __sz + __n - __cap, __sz, __ip, 0, __n); - __p = std::__to_address(__get_long_pointer()); - } - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); - for (__p += __ip; __first != __last; ++__p, ++__first) - traits_type::assign(*__p, *__first); + return begin() + __ip; + } - return begin() + __ip; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 allocator_type& __alloc() _NOEXCEPT { return __r_.second(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const allocator_type& __alloc() const _NOEXCEPT { return __r_.second(); } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 allocator_type& __alloc() _NOEXCEPT { return __r_.second(); } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const allocator_type& __alloc() const _NOEXCEPT { return __r_.second(); } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __set_short_size(size_type __s) _NOEXCEPT + { + _LIBCPP_ASSERT(__s < __min_cap, "__s should never be greater than or equal to the short string capacity"); + __r_.first().__s.__size_ = __s; + __r_.first().__s.__is_long_ = false; + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __set_short_size(size_type __s) _NOEXCEPT { - _LIBCPP_ASSERT(__s < __min_cap, "__s should never be greater than or equal to the short string capacity"); - __r_.first().__s.__size_ = __s; - __r_.first().__s.__is_long_ = false; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type __get_short_size() const _NOEXCEPT + { + _LIBCPP_ASSERT(!__r_.first().__s.__is_long_, "String has to be short when trying to get the short size"); + return __r_.first().__s.__size_; + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type __get_short_size() const _NOEXCEPT { - _LIBCPP_ASSERT(!__r_.first().__s.__is_long_, "String has to be short when trying to get the short size"); - return __r_.first().__s.__size_; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __set_long_size(size_type __s) _NOEXCEPT + { + __r_.first().__l.__size_ = __s; + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type __get_long_size() const _NOEXCEPT + { + return __r_.first().__l.__size_; + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __set_size(size_type __s) _NOEXCEPT + { + if (__is_long()) + __set_long_size(__s); + else + __set_short_size(__s); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __set_long_size(size_type __s) _NOEXCEPT - {__r_.first().__l.__size_ = __s;} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type __get_long_size() const _NOEXCEPT - {return __r_.first().__l.__size_;} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __set_size(size_type __s) _NOEXCEPT - {if (__is_long()) __set_long_size(__s); else __set_short_size(__s);} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __set_long_cap(size_type __s) _NOEXCEPT { - __r_.first().__l.__cap_ = __s / __endian_factor; - __r_.first().__l.__is_long_ = true; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __set_long_cap(size_type __s) _NOEXCEPT + { + __r_.first().__l.__cap_ = __s / __endian_factor; + __r_.first().__l.__is_long_ = true; + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type __get_long_cap() const _NOEXCEPT { - return __r_.first().__l.__cap_ * __endian_factor; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type __get_long_cap() const _NOEXCEPT + { + return __r_.first().__l.__cap_ * __endian_factor; + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __set_long_pointer(pointer __p) _NOEXCEPT - {__r_.first().__l.__data_ = __p;} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - pointer __get_long_pointer() _NOEXCEPT - {return __r_.first().__l.__data_;} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_pointer __get_long_pointer() const _NOEXCEPT - {return __r_.first().__l.__data_;} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - pointer __get_short_pointer() _NOEXCEPT - {return pointer_traits::pointer_to(__r_.first().__s.__data_[0]);} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_pointer __get_short_pointer() const _NOEXCEPT - {return pointer_traits::pointer_to(__r_.first().__s.__data_[0]);} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - pointer __get_pointer() _NOEXCEPT - {return __is_long() ? __get_long_pointer() : __get_short_pointer();} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - const_pointer __get_pointer() const _NOEXCEPT - {return __is_long() ? __get_long_pointer() : __get_short_pointer();} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __zero() _NOEXCEPT { - __r_.first() = __rep(); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __set_long_pointer(pointer __p) _NOEXCEPT + { + __r_.first().__l.__data_ = __p; + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pointer __get_long_pointer() _NOEXCEPT + { + return __r_.first().__l.__data_; + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_pointer __get_long_pointer() const _NOEXCEPT + { + return __r_.first().__l.__data_; + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pointer __get_short_pointer() _NOEXCEPT + { + return pointer_traits::pointer_to(__r_.first().__s.__data_[0]); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_pointer __get_short_pointer() const _NOEXCEPT + { + return pointer_traits::pointer_to(__r_.first().__s.__data_[0]); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 pointer __get_pointer() _NOEXCEPT + { + return __is_long() ? __get_long_pointer() : __get_short_pointer(); + } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 const_pointer __get_pointer() const _NOEXCEPT + { + return __is_long() ? __get_long_pointer() : __get_short_pointer(); + } - template static - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type __align_it(size_type __s) _NOEXCEPT - {return (__s + (__a-1)) & ~(__a-1);} - enum {__alignment = 16}; - static _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - size_type __recommend(size_type __s) _NOEXCEPT + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __zero() _NOEXCEPT { __r_.first() = __rep(); } + + template + static _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type __align_it(size_type __s) _NOEXCEPT + { + return (__s + (__a - 1)) & ~(__a - 1); + } + enum + { + __alignment = 16 + }; + static _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 size_type __recommend(size_type __s) _NOEXCEPT + { + if (__s < __min_cap) { - if (__s < __min_cap) { - if (__libcpp_is_constant_evaluated()) - return static_cast(__min_cap); - else - return static_cast(__min_cap) - 1; - } - size_type __guess = __align_it (__s+1) - 1; - if (__guess == __min_cap) ++__guess; - return __guess; + if (__libcpp_is_constant_evaluated()) + return static_cast(__min_cap); + else + return static_cast(__min_cap) - 1; } + size_type __guess + = __align_it < sizeof(value_type) < __alignment ? __alignment / sizeof(value_type) : 1 > (__s + 1) - 1; + if (__guess == __min_cap) + ++__guess; + return __guess; + } - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __init(const value_type* __s, size_type __sz, size_type __reserve); - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __init(const value_type* __s, size_type __sz); - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __init(size_type __n, value_type __c); - - // Slow path for the (inlined) copy constructor for 'long' strings. - // Always externally instantiated and not inlined. - // Requires that __s is zero terminated. - // The main reason for this function to exist is because for unstable, we - // want to allow inlining of the copy constructor. However, we don't want - // to call the __init() functions as those are marked as inline which may - // result in over-aggressive inlining by the compiler, where our aim is - // to only inline the fast path code directly in the ctor. - _LIBCPP_CONSTEXPR_AFTER_CXX17 void __init_copy_ctor_external(const value_type* __s, size_type __sz); - - template - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_exactly_cpp17_input_iterator<_InputIterator>::value - > - __init(_InputIterator __first, _InputIterator __last); - - template - inline _LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __is_cpp17_forward_iterator<_ForwardIterator>::value - > - __init(_ForwardIterator __first, _ForwardIterator __last); - - _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz, - size_type __n_copy, size_type __n_del, size_type __n_add = 0); - _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __grow_by_and_replace(size_type __old_cap, size_type __delta_cap, size_type __old_sz, - size_type __n_copy, size_type __n_del, - size_type __n_add, const value_type* __p_new_stuff); - - // __assign_no_alias is invoked for assignment operations where we - // have proof that the input does not alias the current instance. - // For example, operator=(basic_string) performs a 'self' check. - template - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_no_alias(const value_type* __s, size_type __n); - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __erase_to_end(size_type __pos); - - // __erase_external_with_move is invoked for erase() invocations where - // `n ~= npos`, likely requiring memory moves on the string data. - _LIBCPP_CONSTEXPR_AFTER_CXX17 void __erase_external_with_move(size_type __pos, size_type __n); - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __copy_assign_alloc(const basic_string& __str) - {__copy_assign_alloc(__str, integral_constant());} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __copy_assign_alloc(const basic_string& __str, true_type) - { - if (__alloc() == __str.__alloc()) - __alloc() = __str.__alloc(); - else - { - if (!__str.__is_long()) - { - __clear_and_shrink(); - __alloc() = __str.__alloc(); - } - else - { - allocator_type __a = __str.__alloc(); - auto __allocation = std::__allocate_at_least(__a, __str.__get_long_cap()); - __begin_lifetime(__allocation.ptr, __allocation.count); - __clear_and_shrink(); - __alloc() = std::move(__a); - __set_long_pointer(__allocation.ptr); - __set_long_cap(__allocation.count); - __set_long_size(__str.size()); - } - } - } + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void __init(const value_type* __s, size_type __sz, size_type __reserve); + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void __init(const value_type* __s, size_type __sz); + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void __init(size_type __n, value_type __c); + + // Slow path for the (inlined) copy constructor for 'long' strings. + // Always externally instantiated and not inlined. + // Requires that __s is zero terminated. + // The main reason for this function to exist is because for unstable, we + // want to allow inlining of the copy constructor. However, we don't want + // to call the __init() functions as those are marked as inline which may + // result in over-aggressive inlining by the compiler, where our aim is + // to only inline the fast path code directly in the ctor. + _LIBCPP_CONSTEXPR_AFTER_CXX17 void __init_copy_ctor_external(const value_type* __s, size_type __sz); + + template + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __is_exactly_cpp17_input_iterator<_InputIterator>::value > + __init(_InputIterator __first, _InputIterator __last); + + template + inline _LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value > + __init(_ForwardIterator __first, _ForwardIterator __last); + + _LIBCPP_CONSTEXPR_AFTER_CXX17 void __grow_by( + size_type __old_cap, + size_type __delta_cap, + size_type __old_sz, + size_type __n_copy, + size_type __n_del, + size_type __n_add = 0); + _LIBCPP_CONSTEXPR_AFTER_CXX17 void __grow_by_and_replace( + size_type __old_cap, + size_type __delta_cap, + size_type __old_sz, + size_type __n_copy, + size_type __n_del, + size_type __n_add, + const value_type* __p_new_stuff); + + // __assign_no_alias is invoked for assignment operations where we + // have proof that the input does not alias the current instance. + // For example, operator=(basic_string) performs a 'self' check. + template + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_no_alias(const value_type* __s, size_type __n); + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __erase_to_end(size_type __pos); + + // __erase_external_with_move is invoked for erase() invocations where + // `n ~= npos`, likely requiring memory moves on the string data. + _LIBCPP_CONSTEXPR_AFTER_CXX17 void __erase_external_with_move(size_type __pos, size_type __n); + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __copy_assign_alloc(const basic_string& __str) + { + __copy_assign_alloc( + __str, integral_constant()); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __copy_assign_alloc(const basic_string&, false_type) _NOEXCEPT - {} + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __copy_assign_alloc(const basic_string& __str, true_type) + { + if (__alloc() == __str.__alloc()) + __alloc() = __str.__alloc(); + else + { + if (!__str.__is_long()) + { + __clear_and_shrink(); + __alloc() = __str.__alloc(); + } + else + { + allocator_type __a = __str.__alloc(); + auto __allocation = std::__allocate_at_least(__a, __str.__get_long_cap()); + __begin_lifetime(__allocation.ptr, __allocation.count); + __clear_and_shrink(); + __alloc() = std::move(__a); + __set_long_pointer(__allocation.ptr); + __set_long_cap(__allocation.count); + __set_long_size(__str.size()); + } + } + } + + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void + __copy_assign_alloc(const basic_string&, false_type) _NOEXCEPT + {} #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __move_assign(basic_string& __str, false_type) - _NOEXCEPT_(__alloc_traits::is_always_equal::value); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __move_assign(basic_string& __str, true_type) -#if _LIBCPP_STD_VER > 14 - _NOEXCEPT; -#else - _NOEXCEPT_(is_nothrow_move_assignable::value); -#endif + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void + __move_assign(basic_string& __str, false_type) _NOEXCEPT_(__alloc_traits::is_always_equal::value); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __move_assign(basic_string& __str, true_type) +# if _LIBCPP_STD_VER > 14 + _NOEXCEPT; +# else + _NOEXCEPT_(is_nothrow_move_assignable::value); +# endif #endif - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void - __move_assign_alloc(basic_string& __str) - _NOEXCEPT_( - !__alloc_traits::propagate_on_container_move_assignment::value || - is_nothrow_move_assignable::value) - {__move_assign_alloc(__str, integral_constant());} - - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __move_assign_alloc(basic_string& __c, true_type) - _NOEXCEPT_(is_nothrow_move_assignable::value) - { - __alloc() = std::move(__c.__alloc()); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __move_assign_alloc(basic_string& __str) _NOEXCEPT_( + !__alloc_traits::propagate_on_container_move_assignment::value + || is_nothrow_move_assignable::value) + { + __move_assign_alloc( + __str, integral_constant()); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - void __move_assign_alloc(basic_string&, false_type) - _NOEXCEPT - {} - - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_external(const value_type* __s); - _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_external(const value_type* __s, size_type __n); - - // Assigns the value in __s, guaranteed to be __n < __min_cap in length. - inline basic_string& __assign_short(const value_type* __s, size_type __n) { - pointer __p = __is_long() - ? (__set_long_size(__n), __get_long_pointer()) - : (__set_short_size(__n), __get_short_pointer()); - traits_type::move(std::__to_address(__p), __s, __n); - traits_type::assign(__p[__n], value_type()); - return *this; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void + __move_assign_alloc(basic_string& __c, true_type) _NOEXCEPT_(is_nothrow_move_assignable::value) + { + __alloc() = std::move(__c.__alloc()); + } - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string& __null_terminate_at(value_type* __p, size_type __newsz) { - __set_size(__newsz); - __invalidate_iterators_past(__newsz); - traits_type::assign(__p[__newsz], value_type()); - return *this; - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __move_assign_alloc(basic_string&, false_type) _NOEXCEPT {} - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __invalidate_all_iterators(); - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __invalidate_iterators_past(size_type); - - template - _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - bool __addr_in_range(_Tp&& __t) const { - // assume that the ranges overlap, because we can't check during constant evaluation - if (__libcpp_is_constant_evaluated()) - return true; - const volatile void *__p = std::addressof(__t); - return data() <= __p && __p <= data() + size(); - } + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_external(const value_type* __s); + _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& __assign_external(const value_type* __s, size_type __n); - _LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI - void __throw_length_error() const { - std::__throw_length_error("basic_string"); - } + // Assigns the value in __s, guaranteed to be __n < __min_cap in length. + inline basic_string& __assign_short(const value_type* __s, size_type __n) + { + pointer __p + = __is_long() ? (__set_long_size(__n), __get_long_pointer()) : (__set_short_size(__n), __get_short_pointer()); + traits_type::move(std::__to_address(__p), __s, __n); + traits_type::assign(__p[__n], value_type()); + return *this; + } - _LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI - void __throw_out_of_range() const { - std::__throw_out_of_range("basic_string"); - } + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string& + __null_terminate_at(value_type* __p, size_type __newsz) + { + __set_size(__newsz); + __invalidate_iterators_past(__newsz); + traits_type::assign(__p[__newsz], value_type()); + return *this; + } - friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, const basic_string&); - friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const value_type*, const basic_string&); - friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(value_type, const basic_string&); - friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, const value_type*); - friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, value_type); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __invalidate_all_iterators(); + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void __invalidate_iterators_past(size_type); + + template + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 bool __addr_in_range(_Tp&& __t) const + { + // assume that the ranges overlap, because we can't check during constant evaluation + if (__libcpp_is_constant_evaluated()) + return true; + const volatile void* __p = std::addressof(__t); + return data() <= __p && __p <= data() + size(); + } + + _LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI void __throw_length_error() const + { + std::__throw_length_error("basic_string"); + } + + _LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI void __throw_out_of_range() const + { + std::__throw_out_of_range("basic_string"); + } + + friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, const basic_string&); + friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const value_type*, const basic_string&); + friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(value_type, const basic_string&); + friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, const value_type*); + friend _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string operator+<>(const basic_string&, value_type); }; // These declarations must appear before any functions are implicitly used // so that they have the correct visibility specifier. #ifdef _LIBCPP_ABI_STRING_OPTIMIZED_EXTERNAL_INSTANTIATION - _LIBCPP_STRING_UNSTABLE_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, char) -# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS - _LIBCPP_STRING_UNSTABLE_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, wchar_t) -# endif +_LIBCPP_STRING_UNSTABLE_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, char) +# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS +_LIBCPP_STRING_UNSTABLE_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, wchar_t) +# endif #else - _LIBCPP_STRING_V1_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, char) -# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS - _LIBCPP_STRING_V1_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, wchar_t) -# endif +_LIBCPP_STRING_V1_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, char) +# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS +_LIBCPP_STRING_V1_EXTERN_TEMPLATE_LIST(_LIBCPP_EXTERN_TEMPLATE, wchar_t) +# endif #endif - #if _LIBCPP_STD_VER >= 17 -template, - class _Allocator = allocator<_CharT>, - class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>, - class = enable_if_t<__is_allocator<_Allocator>::value> - > +template < + class _InputIterator, + class _CharT = __iter_value_type<_InputIterator>, + class _Allocator = allocator<_CharT>, + class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>, + class = enable_if_t<__is_allocator<_Allocator>::value> > basic_string(_InputIterator, _InputIterator, _Allocator = _Allocator()) - -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; + -> basic_string<_CharT, char_traits<_CharT>, _Allocator>; -template, - class = enable_if_t<__is_allocator<_Allocator>::value> - > +template < + class _CharT, + class _Traits, + class _Allocator = allocator<_CharT>, + class = enable_if_t<__is_allocator<_Allocator>::value> > explicit basic_string(basic_string_view<_CharT, _Traits>, const _Allocator& = _Allocator()) - -> basic_string<_CharT, _Traits, _Allocator>; - -template, - class = enable_if_t<__is_allocator<_Allocator>::value>, - class _Sz = typename allocator_traits<_Allocator>::size_type - > + -> basic_string<_CharT, _Traits, _Allocator>; + +template < + class _CharT, + class _Traits, + class _Allocator = allocator<_CharT>, + class = enable_if_t<__is_allocator<_Allocator>::value>, + class _Sz = typename allocator_traits<_Allocator>::size_type > basic_string(basic_string_view<_CharT, _Traits>, _Sz, _Sz, const _Allocator& = _Allocator()) - -> basic_string<_CharT, _Traits, _Allocator>; + -> basic_string<_CharT, _Traits, _Allocator>; #endif template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators() +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators() { #if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated()) - __get_db()->__invalidate_all(this); + if (!__libcpp_is_constant_evaluated()) + __get_db()->__invalidate_all(this); #endif } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__invalidate_iterators_past(size_type __pos) { #if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated()) { - __c_node* __c = __get_db()->__find_c_and_lock(this); - if (__c) + if (!__libcpp_is_constant_evaluated()) + { + __c_node* __c = __get_db()->__find_c_and_lock(this); + if (__c) + { + const_pointer __new_last = __get_pointer() + __pos; + for (__i_node** __p = __c->end_; __p != __c->beg_;) + { + --__p; + const_iterator* __i = static_cast((*__p)->__i_); + if (__i->base() > __new_last) { - const_pointer __new_last = __get_pointer() + __pos; - for (__i_node** __p = __c->end_; __p != __c->beg_; ) - { - --__p; - const_iterator* __i = static_cast((*__p)->__i_); - if (__i->base() > __new_last) - { - (*__p)->__c_ = nullptr; - if (--__c->end_ != __p) - std::memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*)); - } - } - __get_db()->unlock(); + (*__p)->__c_ = nullptr; + if (--__c->end_ != __p) + std::memmove(__p, __p + 1, (__c->end_ - __p) * sizeof(__i_node*)); } + } + __get_db()->unlock(); } + } #else - (void)__pos; + (void)__pos; #endif // _LIBCPP_DEBUG_LEVEL == 2 } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string() +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string() _NOEXCEPT_(is_nothrow_default_constructible::value) - : __r_(__default_init_tag(), __default_init_tag()) + : __r_(__default_init_tag(), __default_init_tag()) { - std::__debug_db_insert_c(this); - __default_init(); + std::__debug_db_insert_c(this); + __default_init(); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a) #if _LIBCPP_STD_VER <= 14 - _NOEXCEPT_(is_nothrow_copy_constructible::value) + _NOEXCEPT_(is_nothrow_copy_constructible::value) #else - _NOEXCEPT + _NOEXCEPT #endif -: __r_(__default_init_tag(), __a) + : __r_(__default_init_tag(), __a) { - std::__debug_db_insert_c(this); - __default_init(); + std::__debug_db_insert_c(this); + __default_init(); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, - size_type __sz, - size_type __reserve) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void +basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz, size_type __reserve) { - if (__libcpp_is_constant_evaluated()) - __zero(); - if (__reserve > max_size()) - __throw_length_error(); - pointer __p; - if (__fits_in_sso(__reserve)) - { - __set_short_size(__sz); - __p = __get_short_pointer(); - } - else - { - auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__reserve) + 1); - __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); - __set_long_size(__sz); - } - traits_type::copy(std::__to_address(__p), __s, __sz); - traits_type::assign(__p[__sz], value_type()); + if (__libcpp_is_constant_evaluated()) + __zero(); + if (__reserve > max_size()) + __throw_length_error(); + pointer __p; + if (__fits_in_sso(__reserve)) + { + __set_short_size(__sz); + __p = __get_short_pointer(); + } + else + { + auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__reserve) + 1); + __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); + __set_long_size(__sz); + } + traits_type::copy(std::__to_address(__p), __s, __sz); + traits_type::assign(__p[__sz], value_type()); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__init(const value_type* __s, size_type __sz) { - if (__libcpp_is_constant_evaluated()) - __zero(); - if (__sz > max_size()) - __throw_length_error(); - pointer __p; - if (__fits_in_sso(__sz)) - { - __set_short_size(__sz); - __p = __get_short_pointer(); - } - else - { - auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); - __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); - __set_long_size(__sz); - } - traits_type::copy(std::__to_address(__p), __s, __sz); - traits_type::assign(__p[__sz], value_type()); + if (__libcpp_is_constant_evaluated()) + __zero(); + if (__sz > max_size()) + __throw_length_error(); + pointer __p; + if (__fits_in_sso(__sz)) + { + __set_short_size(__sz); + __p = __get_short_pointer(); + } + else + { + auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); + __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); + __set_long_size(__sz); + } + traits_type::copy(std::__to_address(__p), __s, __sz); + traits_type::assign(__p[__sz], value_type()); } template @@ -1988,19 +1959,19 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr"); - __init(__s, traits_type::length(__s)); - std::__debug_db_insert_c(this); + _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr"); + __init(__s, traits_type::length(__s)); + std::__debug_db_insert_c(this); } template inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n) - : __r_(__default_init_tag(), __default_init_tag()) + : __r_(__default_init_tag(), __default_init_tag()) { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr"); - __init(__s, __n); - std::__debug_db_insert_c(this); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr"); + __init(__s, __n); + std::__debug_db_insert_c(this); } template @@ -2008,53 +1979,52 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(const _CharT* __s, size_type __n, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr"); - __init(__s, __n); - std::__debug_db_insert_c(this); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr"); + __init(__s, __n); + std::__debug_db_insert_c(this); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str) : __r_(__default_init_tag(), __alloc_traits::select_on_container_copy_construction(__str.__alloc())) { - if (!__str.__is_long()) - __r_.first().__r = __str.__r_.first().__r; - else - __init_copy_ctor_external(std::__to_address(__str.__get_long_pointer()), - __str.__get_long_size()); - std::__debug_db_insert_c(this); + if (!__str.__is_long()) + __r_.first().__r = __str.__r_.first().__r; + else + __init_copy_ctor_external(std::__to_address(__str.__get_long_pointer()), __str.__get_long_size()); + std::__debug_db_insert_c(this); } template _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string( - const basic_string& __str, const allocator_type& __a) +basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, const allocator_type& __a) : __r_(__default_init_tag(), __a) { - if (!__str.__is_long()) - __r_.first().__r = __str.__r_.first().__r; - else - __init_copy_ctor_external(std::__to_address(__str.__get_long_pointer()), - __str.__get_long_size()); - std::__debug_db_insert_c(this); + if (!__str.__is_long()) + __r_.first().__r = __str.__r_.first().__r; + else + __init_copy_ctor_external(std::__to_address(__str.__get_long_pointer()), __str.__get_long_size()); + std::__debug_db_insert_c(this); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void basic_string<_CharT, _Traits, _Allocator>::__init_copy_ctor_external( - const value_type* __s, size_type __sz) { +_LIBCPP_CONSTEXPR_AFTER_CXX17 void +basic_string<_CharT, _Traits, _Allocator>::__init_copy_ctor_external(const value_type* __s, size_type __sz) +{ if (__libcpp_is_constant_evaluated()) __zero(); pointer __p; - if (__fits_in_sso(__sz)) { + if (__fits_in_sso(__sz)) + { __p = __get_short_pointer(); __set_short_size(__sz); - } else { + } + else + { if (__sz > max_size()) __throw_length_error(); auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); - __p = __allocation.ptr; + __p = __allocation.ptr; __begin_lifetime(__p, __allocation.count); __set_long_pointer(__p); __set_long_cap(__allocation.count); @@ -2066,21 +2036,20 @@ #ifndef _LIBCPP_CXX03_LANG template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str) -#if _LIBCPP_STD_VER <= 14 - _NOEXCEPT_(is_nothrow_move_constructible::value) -#else - _NOEXCEPT -#endif +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str) +# if _LIBCPP_STD_VER <= 14 + _NOEXCEPT_(is_nothrow_move_constructible::value) +# else + _NOEXCEPT +# endif : __r_(std::move(__str.__r_)) { - __str.__default_init(); - std::__debug_db_insert_c(this); -#if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated() && __is_long()) - __get_db()->swap(this, &__str); -#endif + __str.__default_init(); + std::__debug_db_insert_c(this); +# if _LIBCPP_DEBUG_LEVEL == 2 + if (!__libcpp_is_constant_evaluated() && __is_long()) + __get_db()->swap(this, &__str); +# endif } template @@ -2088,62 +2057,62 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, const allocator_type& __a) : __r_(__default_init_tag(), __a) { - if (__str.__is_long() && __a != __str.__alloc()) // copy, not move - __init(std::__to_address(__str.__get_long_pointer()), __str.__get_long_size()); + if (__str.__is_long() && __a != __str.__alloc()) // copy, not move + __init(std::__to_address(__str.__get_long_pointer()), __str.__get_long_size()); + else + { + if (__libcpp_is_constant_evaluated()) + { + __zero(); + __r_.first().__l = __str.__r_.first().__l; + } else { - if (__libcpp_is_constant_evaluated()) { - __zero(); - __r_.first().__l = __str.__r_.first().__l; - } else { - __r_.first().__r = __str.__r_.first().__r; - } - __str.__default_init(); + __r_.first().__r = __str.__r_.first().__r; } - std::__debug_db_insert_c(this); -#if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated() && __is_long()) - __get_db()->swap(this, &__str); -#endif + __str.__default_init(); + } + std::__debug_db_insert_c(this); +# if _LIBCPP_DEBUG_LEVEL == 2 + if (!__libcpp_is_constant_evaluated() && __is_long()) + __get_db()->swap(this, &__str); +# endif } #endif // _LIBCPP_CXX03_LANG template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__init(size_type __n, value_type __c) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__init(size_type __n, value_type __c) { - if (__libcpp_is_constant_evaluated()) - __zero(); - if (__n > max_size()) - __throw_length_error(); - pointer __p; - if (__fits_in_sso(__n)) - { - __set_short_size(__n); - __p = __get_short_pointer(); - } - else - { - auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__n) + 1); - __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); - __set_long_size(__n); - } - traits_type::assign(std::__to_address(__p), __n, __c); - traits_type::assign(__p[__n], value_type()); + if (__libcpp_is_constant_evaluated()) + __zero(); + if (__n > max_size()) + __throw_length_error(); + pointer __p; + if (__fits_in_sso(__n)) + { + __set_short_size(__n); + __p = __get_short_pointer(); + } + else + { + auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__n) + 1); + __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); + __set_long_size(__n); + } + traits_type::assign(std::__to_address(__p), __n, __c); + traits_type::assign(__p[__n], value_type()); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c) - : __r_(__default_init_tag(), __default_init_tag()) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c) + : __r_(__default_init_tag(), __default_init_tag()) { - __init(__n, __c); - std::__debug_db_insert_c(this); + __init(__n, __c); + std::__debug_db_insert_c(this); } template @@ -2152,287 +2121,273 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, _CharT __c, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - __init(__n, __c); - std::__debug_db_insert_c(this); + __init(__n, __c); + std::__debug_db_insert_c(this); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, - size_type __pos, size_type __n, - const _Allocator& __a) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string( + const basic_string& __str, size_type __pos, size_type __n, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - size_type __str_sz = __str.size(); - if (__pos > __str_sz) - __throw_out_of_range(); - __init(__str.data() + __pos, std::min(__n, __str_sz - __pos)); - std::__debug_db_insert_c(this); + size_type __str_sz = __str.size(); + if (__pos > __str_sz) + __throw_out_of_range(); + __init(__str.data() + __pos, std::min(__n, __str_sz - __pos)); + std::__debug_db_insert_c(this); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __str, size_type __pos, - const _Allocator& __a) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string( + const basic_string& __str, size_type __pos, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - size_type __str_sz = __str.size(); - if (__pos > __str_sz) - __throw_out_of_range(); - __init(__str.data() + __pos, __str_sz - __pos); - std::__debug_db_insert_c(this); + size_type __str_sz = __str.size(); + if (__pos > __str_sz) + __throw_out_of_range(); + __init(__str.data() + __pos, __str_sz - __pos); + std::__debug_db_insert_c(this); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string( - const _Tp& __t, size_type __pos, size_type __n, const allocator_type& __a) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string( + const _Tp& __t, size_type __pos, size_type __n, const allocator_type& __a) : __r_(__default_init_tag(), __a) { - __self_view __sv0 = __t; - __self_view __sv = __sv0.substr(__pos, __n); - __init(__sv.data(), __sv.size()); - std::__debug_db_insert_c(this); + __self_view __sv0 = __t; + __self_view __sv = __sv0.substr(__pos, __n); + __init(__sv.data(), __sv.size()); + std::__debug_db_insert_c(this); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp & __t) - : __r_(__default_init_tag(), __default_init_tag()) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp& __t) + : __r_(__default_init_tag(), __default_init_tag()) { - __self_view __sv = __t; - __init(__sv.data(), __sv.size()); - std::__debug_db_insert_c(this); + __self_view __sv = __t; + __init(__sv.data(), __sv.size()); + std::__debug_db_insert_c(this); } template template _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp & __t, const _Allocator& __a) +basic_string<_CharT, _Traits, _Allocator>::basic_string(const _Tp& __t, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - __self_view __sv = __t; - __init(__sv.data(), __sv.size()); - std::__debug_db_insert_c(this); + __self_view __sv = __t; + __init(__sv.data(), __sv.size()); + std::__debug_db_insert_c(this); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_exactly_cpp17_input_iterator<_InputIterator>::value -> +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __is_exactly_cpp17_input_iterator<_InputIterator>::value > basic_string<_CharT, _Traits, _Allocator>::__init(_InputIterator __first, _InputIterator __last) { - __default_init(); + __default_init(); #ifndef _LIBCPP_NO_EXCEPTIONS - try - { + try + { #endif // _LIBCPP_NO_EXCEPTIONS for (; __first != __last; ++__first) - push_back(*__first); + push_back(*__first); #ifndef _LIBCPP_NO_EXCEPTIONS - } - catch (...) - { - if (__is_long()) - __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); - throw; - } + } + catch (...) + { + if (__is_long()) + __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); + throw; + } #endif // _LIBCPP_NO_EXCEPTIONS } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_cpp17_forward_iterator<_ForwardIterator>::value -> +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value > basic_string<_CharT, _Traits, _Allocator>::__init(_ForwardIterator __first, _ForwardIterator __last) { - if (__libcpp_is_constant_evaluated()) - __zero(); - size_type __sz = static_cast(std::distance(__first, __last)); - if (__sz > max_size()) - __throw_length_error(); - pointer __p; - if (__fits_in_sso(__sz)) - { - __set_short_size(__sz); - __p = __get_short_pointer(); - } - else - { - auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); - __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); - __set_long_size(__sz); - } + if (__libcpp_is_constant_evaluated()) + __zero(); + size_type __sz = static_cast(std::distance(__first, __last)); + if (__sz > max_size()) + __throw_length_error(); + pointer __p; + if (__fits_in_sso(__sz)) + { + __set_short_size(__sz); + __p = __get_short_pointer(); + } + else + { + auto __allocation = std::__allocate_at_least(__alloc(), __recommend(__sz) + 1); + __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); + __set_long_size(__sz); + } #ifndef _LIBCPP_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_NO_EXCEPTIONS - for (; __first != __last; ++__first, (void) ++__p) - traits_type::assign(*__p, *__first); + try + { +#endif // _LIBCPP_NO_EXCEPTIONS + for (; __first != __last; ++__first, (void)++__p) + traits_type::assign(*__p, *__first); traits_type::assign(*__p, value_type()); #ifndef _LIBCPP_NO_EXCEPTIONS - } - catch (...) - { - if (__is_long()) - __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); - throw; - } -#endif // _LIBCPP_NO_EXCEPTIONS + } + catch (...) + { + if (__is_long()) + __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); + throw; + } +#endif // _LIBCPP_NO_EXCEPTIONS } template -template +template inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last) - : __r_(__default_init_tag(), __default_init_tag()) + : __r_(__default_init_tag(), __default_init_tag()) { - __init(__first, __last); - std::__debug_db_insert_c(this); + __init(__first, __last); + std::__debug_db_insert_c(this); } template -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last, - const allocator_type& __a) +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::basic_string( + _InputIterator __first, _InputIterator __last, const allocator_type& __a) : __r_(__default_init_tag(), __a) { - __init(__first, __last); - std::__debug_db_insert_c(this); + __init(__first, __last); + std::__debug_db_insert_c(this); } #ifndef _LIBCPP_CXX03_LANG template inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string( - initializer_list<_CharT> __il) - : __r_(__default_init_tag(), __default_init_tag()) +basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<_CharT> __il) + : __r_(__default_init_tag(), __default_init_tag()) { - __init(__il.begin(), __il.end()); - std::__debug_db_insert_c(this); + __init(__il.begin(), __il.end()); + std::__debug_db_insert_c(this); } template inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::basic_string( - initializer_list<_CharT> __il, const _Allocator& __a) +basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<_CharT> __il, const _Allocator& __a) : __r_(__default_init_tag(), __a) { - __init(__il.begin(), __il.end()); - std::__debug_db_insert_c(this); + __init(__il.begin(), __il.end()); + std::__debug_db_insert_c(this); } #endif // _LIBCPP_CXX03_LANG template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::~basic_string() +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::~basic_string() { #if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated()) - __get_db()->__erase_c(this); + if (!__libcpp_is_constant_evaluated()) + __get_db()->__erase_c(this); #endif - if (__is_long()) - __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); + if (__is_long()) + __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__grow_by_and_replace - (size_type __old_cap, size_type __delta_cap, size_type __old_sz, - size_type __n_copy, size_type __n_del, size_type __n_add, const value_type* __p_new_stuff) -{ - size_type __ms = max_size(); - if (__delta_cap > __ms - __old_cap - 1) - __throw_length_error(); - pointer __old_p = __get_pointer(); - size_type __cap = __old_cap < __ms / 2 - __alignment ? - __recommend(std::max(__old_cap + __delta_cap, 2 * __old_cap)) : - __ms - 1; - auto __allocation = std::__allocate_at_least(__alloc(), __cap + 1); - pointer __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __invalidate_all_iterators(); - if (__n_copy != 0) - traits_type::copy(std::__to_address(__p), - std::__to_address(__old_p), __n_copy); - if (__n_add != 0) - traits_type::copy(std::__to_address(__p) + __n_copy, __p_new_stuff, __n_add); - size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; - if (__sec_cp_sz != 0) - traits_type::copy(std::__to_address(__p) + __n_copy + __n_add, - std::__to_address(__old_p) + __n_copy + __n_del, __sec_cp_sz); - if (__old_cap+1 != __min_cap || __libcpp_is_constant_evaluated()) - __alloc_traits::deallocate(__alloc(), __old_p, __old_cap+1); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); - __old_sz = __n_copy + __n_add + __sec_cp_sz; - __set_long_size(__old_sz); - traits_type::assign(__p[__old_sz], value_type()); +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__grow_by_and_replace( + size_type __old_cap, + size_type __delta_cap, + size_type __old_sz, + size_type __n_copy, + size_type __n_del, + size_type __n_add, + const value_type* __p_new_stuff) +{ + size_type __ms = max_size(); + if (__delta_cap > __ms - __old_cap - 1) + __throw_length_error(); + pointer __old_p = __get_pointer(); + size_type __cap + = __old_cap < __ms / 2 - __alignment ? __recommend(std::max(__old_cap + __delta_cap, 2 * __old_cap)) : __ms - 1; + auto __allocation = std::__allocate_at_least(__alloc(), __cap + 1); + pointer __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __invalidate_all_iterators(); + if (__n_copy != 0) + traits_type::copy(std::__to_address(__p), std::__to_address(__old_p), __n_copy); + if (__n_add != 0) + traits_type::copy(std::__to_address(__p) + __n_copy, __p_new_stuff, __n_add); + size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; + if (__sec_cp_sz != 0) + traits_type::copy( + std::__to_address(__p) + __n_copy + __n_add, std::__to_address(__old_p) + __n_copy + __n_del, __sec_cp_sz); + if (__old_cap + 1 != __min_cap || __libcpp_is_constant_evaluated()) + __alloc_traits::deallocate(__alloc(), __old_p, __old_cap + 1); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); + __old_sz = __n_copy + __n_add + __sec_cp_sz; + __set_long_size(__old_sz); + traits_type::assign(__p[__old_sz], value_type()); } template -void -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>::__grow_by(size_type __old_cap, size_type __delta_cap, size_type __old_sz, - size_type __n_copy, size_type __n_del, size_type __n_add) -{ - size_type __ms = max_size(); - if (__delta_cap > __ms - __old_cap) - __throw_length_error(); - pointer __old_p = __get_pointer(); - size_type __cap = __old_cap < __ms / 2 - __alignment ? - __recommend(std::max(__old_cap + __delta_cap, 2 * __old_cap)) : - __ms - 1; - auto __allocation = std::__allocate_at_least(__alloc(), __cap + 1); - pointer __p = __allocation.ptr; - __begin_lifetime(__p, __allocation.count); - __invalidate_all_iterators(); - if (__n_copy != 0) - traits_type::copy(std::__to_address(__p), - std::__to_address(__old_p), __n_copy); - size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; - if (__sec_cp_sz != 0) - traits_type::copy(std::__to_address(__p) + __n_copy + __n_add, - std::__to_address(__old_p) + __n_copy + __n_del, - __sec_cp_sz); - if (__libcpp_is_constant_evaluated() || __old_cap + 1 != __min_cap) - __alloc_traits::deallocate(__alloc(), __old_p, __old_cap + 1); - __set_long_pointer(__p); - __set_long_cap(__allocation.count); +void _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>::__grow_by( + size_type __old_cap, + size_type __delta_cap, + size_type __old_sz, + size_type __n_copy, + size_type __n_del, + size_type __n_add) +{ + size_type __ms = max_size(); + if (__delta_cap > __ms - __old_cap) + __throw_length_error(); + pointer __old_p = __get_pointer(); + size_type __cap + = __old_cap < __ms / 2 - __alignment ? __recommend(std::max(__old_cap + __delta_cap, 2 * __old_cap)) : __ms - 1; + auto __allocation = std::__allocate_at_least(__alloc(), __cap + 1); + pointer __p = __allocation.ptr; + __begin_lifetime(__p, __allocation.count); + __invalidate_all_iterators(); + if (__n_copy != 0) + traits_type::copy(std::__to_address(__p), std::__to_address(__old_p), __n_copy); + size_type __sec_cp_sz = __old_sz - __n_del - __n_copy; + if (__sec_cp_sz != 0) + traits_type::copy( + std::__to_address(__p) + __n_copy + __n_add, std::__to_address(__old_p) + __n_copy + __n_del, __sec_cp_sz); + if (__libcpp_is_constant_evaluated() || __old_cap + 1 != __min_cap) + __alloc_traits::deallocate(__alloc(), __old_p, __old_cap + 1); + __set_long_pointer(__p); + __set_long_cap(__allocation.count); } // assign template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::__assign_no_alias( - const value_type* __s, size_type __n) { +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::__assign_no_alias(const value_type* __s, size_type __n) +{ size_type __cap = __is_short ? static_cast(__min_cap) : __get_long_cap(); - if (__n < __cap) { + if (__n < __cap) + { pointer __p = __is_short ? __get_short_pointer() : __get_long_pointer(); __is_short ? __set_short_size(__n) : __set_long_size(__n); traits_type::copy(std::__to_address(__p), __s, __n); traits_type::assign(__p[__n], value_type()); __invalidate_iterators_past(__n); - } else { + } + else + { size_type __sz = __is_short ? __get_short_size() : __get_long_size(); __grow_by_and_replace(__cap - 1, __n - __cap + 1, __sz, 0, __sz, __n, __s); } @@ -2440,16 +2395,18 @@ } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::__assign_external( - const value_type* __s, size_type __n) { +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::__assign_external(const value_type* __s, size_type __n) +{ size_type __cap = capacity(); - if (__cap >= __n) { + if (__cap >= __n) + { value_type* __p = std::__to_address(__get_pointer()); traits_type::move(__p, __s, __n); return __null_terminate_at(__p, __n); - } else { + } + else + { size_type __sz = size(); __grow_by_and_replace(__cap, __n - __cap, __sz, 0, __sz, __n, __s); return *this; @@ -2457,68 +2414,69 @@ } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s, size_type __n) { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign received nullptr"); - return (__builtin_constant_p(__n) && __fits_in_sso(__n)) - ? __assign_short(__s, __n) - : __assign_external(__s, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign received nullptr"); + return (__builtin_constant_p(__n) && __fits_in_sso(__n)) ? __assign_short(__s, __n) : __assign_external(__s, __n); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(size_type __n, value_type __c) { - size_type __cap = capacity(); - if (__cap < __n) - { - size_type __sz = size(); - __grow_by(__cap, __n - __cap, __sz, 0, __sz); - } - value_type* __p = std::__to_address(__get_pointer()); - traits_type::assign(__p, __n, __c); - return __null_terminate_at(__p, __n); + size_type __cap = capacity(); + if (__cap < __n) + { + size_type __sz = size(); + __grow_by(__cap, __n - __cap, __sz, 0, __sz); + } + value_type* __p = std::__to_address(__get_pointer()); + traits_type::assign(__p, __n, __c); + return __null_terminate_at(__p, __n); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::operator=(value_type __c) { - pointer __p; - if (__is_long()) - { - __p = __get_long_pointer(); - __set_long_size(1); - } - else - { - __p = __get_short_pointer(); - __set_short_size(1); - } - traits_type::assign(*__p, __c); - traits_type::assign(*++__p, value_type()); - __invalidate_iterators_past(1); - return *this; + pointer __p; + if (__is_long()) + { + __p = __get_long_pointer(); + __set_long_size(1); + } + else + { + __p = __get_short_pointer(); + __set_short_size(1); + } + traits_type::assign(*__p, __c); + traits_type::assign(*++__p, value_type()); + __invalidate_iterators_past(1); + return *this; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::operator=(const basic_string& __str) { - if (this != &__str) { + if (this != &__str) + { __copy_assign_alloc(__str); - if (!__is_long()) { - if (!__str.__is_long()) { + if (!__is_long()) + { + if (!__str.__is_long()) + { __r_.first().__r = __str.__r_.first().__r; - } else { + } + else + { return __assign_no_alias(__str.data(), __str.size()); } - } else { + } + else + { return __assign_no_alias(__str.data(), __str.size()); } } @@ -2528,549 +2486,512 @@ #ifndef _LIBCPP_CXX03_LANG template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, false_type) _NOEXCEPT_(__alloc_traits::is_always_equal::value) { - if (__alloc() != __str.__alloc()) - assign(__str); - else - __move_assign(__str, true_type()); + if (__alloc() != __str.__alloc()) + assign(__str); + else + __move_assign(__str, true_type()); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__move_assign(basic_string& __str, true_type) -#if _LIBCPP_STD_VER > 14 +# if _LIBCPP_STD_VER > 14 _NOEXCEPT -#else +# else _NOEXCEPT_(is_nothrow_move_assignable::value) -#endif +# endif { - if (__is_long()) { - __alloc_traits::deallocate(__alloc(), __get_long_pointer(), - __get_long_cap()); -#if _LIBCPP_STD_VER <= 14 - if (!is_nothrow_move_assignable::value) { + if (__is_long()) + { + __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); +# if _LIBCPP_STD_VER <= 14 + if (!is_nothrow_move_assignable::value) + { __set_short_size(0); traits_type::assign(__get_short_pointer()[0], value_type()); } -#endif +# endif } __move_assign_alloc(__str); __r_.first() = __str.__r_.first(); - if (__libcpp_is_constant_evaluated()) { + if (__libcpp_is_constant_evaluated()) + { __str.__default_init(); - } else { + } + else + { __str.__set_short_size(0); traits_type::assign(__str.__get_short_pointer()[0], value_type()); } } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::operator=(basic_string&& __str) _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) { - __move_assign(__str, integral_constant()); - return *this; + __move_assign(__str, integral_constant()); + return *this; } #endif template -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_exactly_cpp17_input_iterator<_InputIterator>::value, - basic_string<_CharT, _Traits, _Allocator>& -> +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __is_exactly_cpp17_input_iterator<_InputIterator>::value, + basic_string<_CharT, _Traits, _Allocator>& > basic_string<_CharT, _Traits, _Allocator>::assign(_InputIterator __first, _InputIterator __last) { - const basic_string __temp(__first, __last, __alloc()); - assign(__temp.data(), __temp.size()); - return *this; + const basic_string __temp(__first, __last, __alloc()); + assign(__temp.data(), __temp.size()); + return *this; } template -template +template _LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_cpp17_forward_iterator<_ForwardIterator>::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last) + __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value, basic_string<_CharT, _Traits, _Allocator>& > + basic_string<_CharT, _Traits, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last) { - size_type __cap = capacity(); - size_type __n = __string_is_trivial_iterator<_ForwardIterator>::value ? - static_cast(std::distance(__first, __last)) : 0; + size_type __cap = capacity(); + size_type __n + = __string_is_trivial_iterator<_ForwardIterator>::value + ? static_cast(std::distance(__first, __last)) + : 0; - if (__string_is_trivial_iterator<_ForwardIterator>::value && - (__cap >= __n || !__addr_in_range(*__first))) - { - if (__cap < __n) - { - size_type __sz = size(); - __grow_by(__cap, __n - __cap, __sz, 0, __sz); - } - pointer __p = __get_pointer(); - for (; __first != __last; ++__p, (void) ++__first) - traits_type::assign(*__p, *__first); - traits_type::assign(*__p, value_type()); - __set_size(__n); - __invalidate_iterators_past(__n); - } - else + if (__string_is_trivial_iterator<_ForwardIterator>::value && (__cap >= __n || !__addr_in_range(*__first))) + { + if (__cap < __n) { - const basic_string __temp(__first, __last, __alloc()); - assign(__temp.data(), __temp.size()); + size_type __sz = size(); + __grow_by(__cap, __n - __cap, __sz, 0, __sz); } - return *this; + pointer __p = __get_pointer(); + for (; __first != __last; ++__p, (void)++__first) + traits_type::assign(*__p, *__first); + traits_type::assign(*__p, value_type()); + __set_size(__n); + __invalidate_iterators_past(__n); + } + else + { + const basic_string __temp(__first, __last, __alloc()); + assign(__temp.data(), __temp.size()); + } + return *this; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(const basic_string& __str, size_type __pos, size_type __n) { - size_type __sz = __str.size(); - if (__pos > __sz) - __throw_out_of_range(); - return assign(__str.data() + __pos, std::min(__n, __sz - __pos)); + size_type __sz = __str.size(); + if (__pos > __sz) + __throw_out_of_range(); + return assign(__str.data() + __pos, std::min(__n, __sz - __pos)); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::assign(const _Tp & __t, size_type __pos, size_type __n) + && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, + basic_string<_CharT, _Traits, _Allocator>& > +basic_string<_CharT, _Traits, _Allocator>::assign(const _Tp& __t, size_type __pos, size_type __n) { - __self_view __sv = __t; - size_type __sz = __sv.size(); - if (__pos > __sz) - __throw_out_of_range(); - return assign(__sv.data() + __pos, std::min(__n, __sz - __pos)); + __self_view __sv = __t; + size_type __sz = __sv.size(); + if (__pos > __sz) + __throw_out_of_range(); + return assign(__sv.data() + __pos, std::min(__n, __sz - __pos)); } - template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::__assign_external(const value_type* __s) { +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::__assign_external(const value_type* __s) +{ return __assign_external(__s, traits_type::length(__s)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s) { - _LIBCPP_ASSERT(__s != nullptr, "string::assign received nullptr"); - return __builtin_constant_p(*__s) - ? (__fits_in_sso(traits_type::length(__s)) - ? __assign_short(__s, traits_type::length(__s)) - : __assign_external(__s, traits_type::length(__s))) - : __assign_external(__s); + _LIBCPP_ASSERT(__s != nullptr, "string::assign received nullptr"); + return __builtin_constant_p(*__s) + ? (__fits_in_sso(traits_type::length(__s)) + ? __assign_short(__s, traits_type::length(__s)) + : __assign_external(__s, traits_type::length(__s))) + : __assign_external(__s); } // append template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s, size_type __n) { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append received nullptr"); - size_type __cap = capacity(); - size_type __sz = size(); - if (__cap - __sz >= __n) + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append received nullptr"); + size_type __cap = capacity(); + size_type __sz = size(); + if (__cap - __sz >= __n) + { + if (__n) { - if (__n) - { - value_type* __p = std::__to_address(__get_pointer()); - traits_type::copy(__p + __sz, __s, __n); - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); - } + value_type* __p = std::__to_address(__get_pointer()); + traits_type::copy(__p + __sz, __s, __n); + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); } - else - __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __sz, 0, __n, __s); - return *this; + } + else + __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __sz, 0, __n, __s); + return *this; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(size_type __n, value_type __c) { - if (__n) - { - size_type __cap = capacity(); - size_type __sz = size(); - if (__cap - __sz < __n) - __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); - pointer __p = __get_pointer(); - traits_type::assign(std::__to_address(__p) + __sz, __n, __c); - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); - } - return *this; + if (__n) + { + size_type __cap = capacity(); + size_type __sz = size(); + if (__cap - __sz < __n) + __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); + pointer __p = __get_pointer(); + traits_type::assign(std::__to_address(__p) + __sz, __n, __c); + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); + } + return *this; } template _LIBCPP_CONSTEXPR_AFTER_CXX17 inline void basic_string<_CharT, _Traits, _Allocator>::__append_default_init(size_type __n) { - if (__n) - { - size_type __cap = capacity(); - size_type __sz = size(); - if (__cap - __sz < __n) - __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); - pointer __p = __get_pointer(); - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); - } + if (__n) + { + size_type __cap = capacity(); + size_type __sz = size(); + if (__cap - __sz < __n) + __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); + pointer __p = __get_pointer(); + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); + } } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::push_back(value_type __c) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::push_back(value_type __c) { - bool __is_short = !__is_long(); - size_type __cap; - size_type __sz; - if (__is_short) - { - __cap = __min_cap - 1; - __sz = __get_short_size(); - } - else - { - __cap = __get_long_cap() - 1; - __sz = __get_long_size(); - } - if (__sz == __cap) - { - __grow_by(__cap, 1, __sz, __sz, 0); - __is_short = false; // the string is always long after __grow_by - } - pointer __p = __get_pointer(); - if (__is_short) - { - __p = __get_short_pointer() + __sz; - __set_short_size(__sz+1); - } - else - { - __p = __get_long_pointer() + __sz; - __set_long_size(__sz+1); - } - traits_type::assign(*__p, __c); - traits_type::assign(*++__p, value_type()); + bool __is_short = !__is_long(); + size_type __cap; + size_type __sz; + if (__is_short) + { + __cap = __min_cap - 1; + __sz = __get_short_size(); + } + else + { + __cap = __get_long_cap() - 1; + __sz = __get_long_size(); + } + if (__sz == __cap) + { + __grow_by(__cap, 1, __sz, __sz, 0); + __is_short = false; // the string is always long after __grow_by + } + pointer __p = __get_pointer(); + if (__is_short) + { + __p = __get_short_pointer() + __sz; + __set_short_size(__sz + 1); + } + else + { + __p = __get_long_pointer() + __sz; + __set_long_size(__sz + 1); + } + traits_type::assign(*__p, __c); + traits_type::assign(*++__p, value_type()); } template -template +template _LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_cpp17_forward_iterator<_ForwardIterator>::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::append( - _ForwardIterator __first, _ForwardIterator __last) + __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value, basic_string<_CharT, _Traits, _Allocator>& > + basic_string<_CharT, _Traits, _Allocator>::append(_ForwardIterator __first, _ForwardIterator __last) { - size_type __sz = size(); - size_type __cap = capacity(); - size_type __n = static_cast(std::distance(__first, __last)); - if (__n) + size_type __sz = size(); + size_type __cap = capacity(); + size_type __n = static_cast(std::distance(__first, __last)); + if (__n) + { + if (__string_is_trivial_iterator<_ForwardIterator>::value && !__addr_in_range(*__first)) { - if (__string_is_trivial_iterator<_ForwardIterator>::value && - !__addr_in_range(*__first)) - { - if (__cap - __sz < __n) - __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); - pointer __p = __get_pointer() + __sz; - for (; __first != __last; ++__p, (void) ++__first) - traits_type::assign(*__p, *__first); - traits_type::assign(*__p, value_type()); - __set_size(__sz + __n); - } - else - { - const basic_string __temp(__first, __last, __alloc()); - append(__temp.data(), __temp.size()); - } + if (__cap - __sz < __n) + __grow_by(__cap, __sz + __n - __cap, __sz, __sz, 0); + pointer __p = __get_pointer() + __sz; + for (; __first != __last; ++__p, (void)++__first) + traits_type::assign(*__p, *__first); + traits_type::assign(*__p, value_type()); + __set_size(__sz + __n); } - return *this; + else + { + const basic_string __temp(__first, __last, __alloc()); + append(__temp.data(), __temp.size()); + } + } + return *this; } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str) { - return append(__str.data(), __str.size()); + return append(__str.data(), __str.size()); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const basic_string& __str, size_type __pos, size_type __n) { - size_type __sz = __str.size(); - if (__pos > __sz) - __throw_out_of_range(); - return append(__str.data() + __pos, std::min(__n, __sz - __pos)); + size_type __sz = __str.size(); + if (__pos > __sz) + __throw_out_of_range(); + return append(__str.data() + __pos, std::min(__n, __sz - __pos)); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 - __enable_if_t - < - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, - basic_string<_CharT, _Traits, _Allocator>& - > -basic_string<_CharT, _Traits, _Allocator>::append(const _Tp & __t, size_type __pos, size_type __n) +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, + basic_string<_CharT, _Traits, _Allocator>& > +basic_string<_CharT, _Traits, _Allocator>::append(const _Tp& __t, size_type __pos, size_type __n) { - __self_view __sv = __t; - size_type __sz = __sv.size(); - if (__pos > __sz) - __throw_out_of_range(); - return append(__sv.data() + __pos, std::min(__n, __sz - __pos)); + __self_view __sv = __t; + size_type __sz = __sv.size(); + if (__pos > __sz) + __throw_out_of_range(); + return append(__sv.data() + __pos, std::min(__n, __sz - __pos)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s) { - _LIBCPP_ASSERT(__s != nullptr, "string::append received nullptr"); - return append(__s, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::append received nullptr"); + return append(__s, traits_type::length(__s)); } // insert template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s, size_type __n) { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert received nullptr"); - size_type __sz = size(); - if (__pos > __sz) - __throw_out_of_range(); - size_type __cap = capacity(); - if (__libcpp_is_constant_evaluated()) { - if (__cap - __sz >= __n) - __grow_by_and_replace(__cap, 0, __sz, __pos, 0, __n, __s); - else - __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s); - return *this; - } + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert received nullptr"); + size_type __sz = size(); + if (__pos > __sz) + __throw_out_of_range(); + size_type __cap = capacity(); + if (__libcpp_is_constant_evaluated()) + { if (__cap - __sz >= __n) - { - if (__n) - { - value_type* __p = std::__to_address(__get_pointer()); - size_type __n_move = __sz - __pos; - if (__n_move != 0) - { - if (__p + __pos <= __s && __s < __p + __sz) - __s += __n; - traits_type::move(__p + __pos + __n, __p + __pos, __n_move); - } - traits_type::move(__p + __pos, __s, __n); - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); - } - } + __grow_by_and_replace(__cap, 0, __sz, __pos, 0, __n, __s); else - __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s); + __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s); return *this; + } + if (__cap - __sz >= __n) + { + if (__n) + { + value_type* __p = std::__to_address(__get_pointer()); + size_type __n_move = __sz - __pos; + if (__n_move != 0) + { + if (__p + __pos <= __s && __s < __p + __sz) + __s += __n; + traits_type::move(__p + __pos + __n, __p + __pos, __n_move); + } + traits_type::move(__p + __pos, __s, __n); + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); + } + } + else + __grow_by_and_replace(__cap, __sz + __n - __cap, __sz, __pos, 0, __n, __s); + return *this; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, size_type __n, value_type __c) { - size_type __sz = size(); - if (__pos > __sz) - __throw_out_of_range(); - if (__n) + size_type __sz = size(); + if (__pos > __sz) + __throw_out_of_range(); + if (__n) + { + size_type __cap = capacity(); + value_type* __p; + if (__cap - __sz >= __n) { - size_type __cap = capacity(); - value_type* __p; - if (__cap - __sz >= __n) - { - __p = std::__to_address(__get_pointer()); - size_type __n_move = __sz - __pos; - if (__n_move != 0) - traits_type::move(__p + __pos + __n, __p + __pos, __n_move); - } - else - { - __grow_by(__cap, __sz + __n - __cap, __sz, __pos, 0, __n); - __p = std::__to_address(__get_long_pointer()); - } - traits_type::assign(__p + __pos, __n, __c); - __sz += __n; - __set_size(__sz); - traits_type::assign(__p[__sz], value_type()); + __p = std::__to_address(__get_pointer()); + size_type __n_move = __sz - __pos; + if (__n_move != 0) + traits_type::move(__p + __pos + __n, __p + __pos, __n_move); } - return *this; + else + { + __grow_by(__cap, __sz + __n - __cap, __sz, __pos, 0, __n); + __p = std::__to_address(__get_long_pointer()); + } + traits_type::assign(__p + __pos, __n, __c); + __sz += __n; + __set_size(__sz); + traits_type::assign(__p[__sz], value_type()); + } + return *this; } template -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_exactly_cpp17_input_iterator<_InputIterator>::value, - typename basic_string<_CharT, _Traits, _Allocator>::iterator -> +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __is_exactly_cpp17_input_iterator<_InputIterator>::value, + typename basic_string<_CharT, _Traits, _Allocator>::iterator > basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _InputIterator __first, _InputIterator __last) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, - "string::insert(iterator, range) called with an iterator not" - " referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, range) called with an iterator not" + " referring to this string"); const basic_string __temp(__first, __last, __alloc()); return insert(__pos, __temp.data(), __temp.data() + __temp.size()); } template -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __is_cpp17_forward_iterator<_ForwardIterator>::value, - typename basic_string<_CharT, _Traits, _Allocator>::iterator -> -basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last) + typename basic_string<_CharT, _Traits, _Allocator>::iterator > +basic_string<_CharT, _Traits, _Allocator>::insert( + const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, - "string::insert(iterator, range) called with an iterator not referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, range) called with an iterator not referring to this string"); - size_type __ip = static_cast(__pos - begin()); - size_type __n = static_cast(std::distance(__first, __last)); - if (__n == 0) - return begin() + __ip; + size_type __ip = static_cast(__pos - begin()); + size_type __n = static_cast(std::distance(__first, __last)); + if (__n == 0) + return begin() + __ip; - if (__string_is_trivial_iterator<_ForwardIterator>::value && !__addr_in_range(*__first)) - { - return __insert_from_safe_copy(__n, __ip, __first, __last); - } - else - { - const basic_string __temp(__first, __last, __alloc()); - return __insert_from_safe_copy(__n, __ip, __temp.begin(), __temp.end()); - } + if (__string_is_trivial_iterator<_ForwardIterator>::value && !__addr_in_range(*__first)) + { + return __insert_from_safe_copy(__n, __ip, __first, __last); + } + else + { + const basic_string __temp(__first, __last, __alloc()); + return __insert_from_safe_copy(__n, __ip, __temp.begin(), __temp.end()); + } } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str) { - return insert(__pos1, __str.data(), __str.size()); + return insert(__pos1, __str.data(), __str.size()); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const basic_string& __str, - size_type __pos2, size_type __n) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::insert( + size_type __pos1, const basic_string& __str, size_type __pos2, size_type __n) { - size_type __str_sz = __str.size(); - if (__pos2 > __str_sz) - __throw_out_of_range(); - return insert(__pos1, __str.data() + __pos2, std::min(__n, __str_sz - __pos2)); + size_type __str_sz = __str.size(); + if (__pos2 > __str_sz) + __throw_out_of_range(); + return insert(__pos1, __str.data() + __pos2, std::min(__n, __str_sz - __pos2)); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const _Tp& __t, - size_type __pos2, size_type __n) +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, + basic_string<_CharT, _Traits, _Allocator>& > +basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos1, const _Tp& __t, size_type __pos2, size_type __n) { - __self_view __sv = __t; - size_type __str_sz = __sv.size(); - if (__pos2 > __str_sz) - __throw_out_of_range(); - return insert(__pos1, __sv.data() + __pos2, std::min(__n, __str_sz - __pos2)); + __self_view __sv = __t; + size_type __str_sz = __sv.size(); + if (__pos2 > __str_sz) + __throw_out_of_range(); + return insert(__pos1, __sv.data() + __pos2, std::min(__n, __str_sz - __pos2)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s) { - _LIBCPP_ASSERT(__s != nullptr, "string::insert received nullptr"); - return insert(__pos, __s, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::insert received nullptr"); + return insert(__pos, __s, traits_type::length(__s)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::iterator +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, value_type __c) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, - "string::insert(iterator, character) called with an iterator not" - " referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, character) called with an iterator not" + " referring to this string"); - size_type __ip = static_cast(__pos - begin()); - size_type __sz = size(); - size_type __cap = capacity(); - value_type* __p; - if (__cap == __sz) - { - __grow_by(__cap, 1, __sz, __ip, 0, 1); - __p = std::__to_address(__get_long_pointer()); - } - else - { - __p = std::__to_address(__get_pointer()); - size_type __n_move = __sz - __ip; - if (__n_move != 0) - traits_type::move(__p + __ip + 1, __p + __ip, __n_move); - } - traits_type::assign(__p[__ip], __c); - traits_type::assign(__p[++__sz], value_type()); - __set_size(__sz); - return begin() + static_cast(__ip); + size_type __ip = static_cast(__pos - begin()); + size_type __sz = size(); + size_type __cap = capacity(); + value_type* __p; + if (__cap == __sz) + { + __grow_by(__cap, 1, __sz, __ip, 0, 1); + __p = std::__to_address(__get_long_pointer()); + } + else + { + __p = std::__to_address(__get_pointer()); + size_type __n_move = __sz - __ip; + if (__n_move != 0) + traits_type::move(__p + __ip + 1, __p + __ip, __n_move); + } + traits_type::assign(__p[__ip], __c); + traits_type::assign(__p[++__sz], value_type()); + __set_size(__sz); + return begin() + static_cast(__ip); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::iterator +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, size_type __n, value_type __c) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, - "string::insert(iterator, n, value) called with an iterator not" - " referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, n, value) called with an iterator not" + " referring to this string"); difference_type __p = __pos - begin(); insert(static_cast(__p), __n, __c); return begin() + __p; @@ -3079,182 +3000,170 @@ // replace template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2) - _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::replace( + size_type __pos, size_type __n1, const value_type* __s, size_type __n2) _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK { - _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace received nullptr"); - size_type __sz = size(); - if (__pos > __sz) - __throw_out_of_range(); - __n1 = std::min(__n1, __sz - __pos); - size_type __cap = capacity(); - if (__cap - __sz + __n1 >= __n2) + _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace received nullptr"); + size_type __sz = size(); + if (__pos > __sz) + __throw_out_of_range(); + __n1 = std::min(__n1, __sz - __pos); + size_type __cap = capacity(); + if (__cap - __sz + __n1 >= __n2) + { + if (__libcpp_is_constant_evaluated()) + { + __grow_by_and_replace(__cap, 0, __sz, __pos, __n1, __n2, __s); + return *this; + } + value_type* __p = std::__to_address(__get_pointer()); + if (__n1 != __n2) { - if (__libcpp_is_constant_evaluated()) { - __grow_by_and_replace(__cap, 0, __sz, __pos, __n1, __n2, __s); - return *this; + size_type __n_move = __sz - __pos - __n1; + if (__n_move != 0) + { + if (__n1 > __n2) + { + traits_type::move(__p + __pos, __s, __n2); + traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); + return __null_terminate_at(__p, __sz + (__n2 - __n1)); } - value_type* __p = std::__to_address(__get_pointer()); - if (__n1 != __n2) + if (__p + __pos < __s && __s < __p + __sz) { - size_type __n_move = __sz - __pos - __n1; - if (__n_move != 0) - { - if (__n1 > __n2) - { - traits_type::move(__p + __pos, __s, __n2); - traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); - return __null_terminate_at(__p, __sz + (__n2 - __n1)); - } - if (__p + __pos < __s && __s < __p + __sz) - { - if (__p + __pos + __n1 <= __s) - __s += __n2 - __n1; - else // __p + __pos < __s < __p + __pos + __n1 - { - traits_type::move(__p + __pos, __s, __n1); - __pos += __n1; - __s += __n2; - __n2 -= __n1; - __n1 = 0; - } - } - traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); - } + if (__p + __pos + __n1 <= __s) + __s += __n2 - __n1; + else // __p + __pos < __s < __p + __pos + __n1 + { + traits_type::move(__p + __pos, __s, __n1); + __pos += __n1; + __s += __n2; + __n2 -= __n1; + __n1 = 0; + } } - traits_type::move(__p + __pos, __s, __n2); - return __null_terminate_at(__p, __sz + (__n2 - __n1)); + traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); + } } - else - __grow_by_and_replace(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2, __s); - return *this; + traits_type::move(__p + __pos, __s, __n2); + return __null_terminate_at(__p, __sz + (__n2 - __n1)); + } + else + __grow_by_and_replace(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2, __s); + return *this; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, size_type __n2, value_type __c) { - size_type __sz = size(); - if (__pos > __sz) - __throw_out_of_range(); - __n1 = std::min(__n1, __sz - __pos); - size_type __cap = capacity(); - value_type* __p; - if (__cap - __sz + __n1 >= __n2) - { - __p = std::__to_address(__get_pointer()); - if (__n1 != __n2) - { - size_type __n_move = __sz - __pos - __n1; - if (__n_move != 0) - traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); - } - } - else + size_type __sz = size(); + if (__pos > __sz) + __throw_out_of_range(); + __n1 = std::min(__n1, __sz - __pos); + size_type __cap = capacity(); + value_type* __p; + if (__cap - __sz + __n1 >= __n2) + { + __p = std::__to_address(__get_pointer()); + if (__n1 != __n2) { - __grow_by(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2); - __p = std::__to_address(__get_long_pointer()); + size_type __n_move = __sz - __pos - __n1; + if (__n_move != 0) + traits_type::move(__p + __pos + __n2, __p + __pos + __n1, __n_move); } - traits_type::assign(__p + __pos, __n2, __c); - return __null_terminate_at(__p, __sz - (__n1 - __n2)); + } + else + { + __grow_by(__cap, __sz - __n1 + __n2 - __cap, __sz, __pos, __n1, __n2); + __p = std::__to_address(__get_long_pointer()); + } + traits_type::assign(__p + __pos, __n2, __c); + return __null_terminate_at(__p, __sz - (__n1 - __n2)); } template -template +template _LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __is_cpp17_input_iterator<_InputIterator>::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, - _InputIterator __j1, _InputIterator __j2) + __enable_if_t< __is_cpp17_input_iterator<_InputIterator>::value, basic_string<_CharT, _Traits, _Allocator>& > + basic_string<_CharT, _Traits, _Allocator>::replace( + const_iterator __i1, const_iterator __i2, _InputIterator __j1, _InputIterator __j2) { - const basic_string __temp(__j1, __j2, __alloc()); - return replace(__i1, __i2, __temp); + const basic_string __temp(__j1, __j2, __alloc()); + return replace(__i1, __i2, __temp); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str) { - return replace(__pos1, __n1, __str.data(), __str.size()); + return replace(__pos1, __n1, __str.data(), __str.size()); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const basic_string& __str, - size_type __pos2, size_type __n2) +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::replace( + size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2) { - size_type __str_sz = __str.size(); - if (__pos2 > __str_sz) - __throw_out_of_range(); - return replace(__pos1, __n1, __str.data() + __pos2, std::min(__n2, __str_sz - __pos2)); + size_type __str_sz = __str.size(); + if (__pos2 > __str_sz) + __throw_out_of_range(); + return replace(__pos1, __n1, __str.data() + __pos2, std::min(__n2, __str_sz - __pos2)); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, - basic_string<_CharT, _Traits, _Allocator>& -> -basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos1, size_type __n1, const _Tp& __t, - size_type __pos2, size_type __n2) -{ - __self_view __sv = __t; - size_type __str_sz = __sv.size(); - if (__pos2 > __str_sz) - __throw_out_of_range(); - return replace(__pos1, __n1, __sv.data() + __pos2, std::min(__n2, __str_sz - __pos2)); +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< + __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value + && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, + basic_string<_CharT, _Traits, _Allocator>& > +basic_string<_CharT, _Traits, _Allocator>::replace( + size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2) +{ + __self_view __sv = __t; + size_type __str_sz = __sv.size(); + if (__pos2 > __str_sz) + __throw_out_of_range(); + return replace(__pos1, __n1, __sv.data() + __pos2, std::min(__n2, __str_sz - __pos2)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s) { - _LIBCPP_ASSERT(__s != nullptr, "string::replace received nullptr"); - return replace(__pos, __n1, __s, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::replace received nullptr"); + return replace(__pos, __n1, __s, traits_type::length(__s)); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const basic_string& __str) { - return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), - __str.data(), __str.size()); + return replace( + static_cast(__i1 - begin()), static_cast(__i2 - __i1), __str.data(), __str.size()); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::replace( + const_iterator __i1, const_iterator __i2, const value_type* __s, size_type __n) { - return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __s, __n); + return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __s, __n); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, const value_type* __s) { - return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __s); + return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __s); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::replace(const_iterator __i1, const_iterator __i2, size_type __n, value_type __c) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::replace( + const_iterator __i1, const_iterator __i2, size_type __n, value_type __c) { - return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __n, __c); + return replace(static_cast(__i1 - begin()), static_cast(__i2 - __i1), __n, __c); } // erase @@ -3262,359 +3171,340 @@ // 'externally instantiated' erase() implementation, called when __n != npos. // Does not check __pos against size() template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__erase_external_with_move( - size_type __pos, size_type __n) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void +basic_string<_CharT, _Traits, _Allocator>::__erase_external_with_move(size_type __pos, size_type __n) { - if (__n) - { - size_type __sz = size(); - value_type* __p = std::__to_address(__get_pointer()); - __n = std::min(__n, __sz - __pos); - size_type __n_move = __sz - __pos - __n; - if (__n_move != 0) - traits_type::move(__p + __pos, __p + __pos + __n, __n_move); - __null_terminate_at(__p, __sz - __n); - } + if (__n) + { + size_type __sz = size(); + value_type* __p = std::__to_address(__get_pointer()); + __n = std::min(__n, __sz - __pos); + size_type __n_move = __sz - __pos - __n; + if (__n_move != 0) + traits_type::move(__p + __pos, __p + __pos + __n, __n_move); + __null_terminate_at(__p, __sz - __n); + } } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator>& -basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos, - size_type __n) { +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator>& +basic_string<_CharT, _Traits, _Allocator>::erase(size_type __pos, size_type __n) +{ if (__pos > size()) __throw_out_of_range(); - if (__n == npos) { + if (__n == npos) + { __erase_to_end(__pos); - } else { + } + else + { __erase_external_with_move(__pos, __n); } return *this; } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::iterator +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __pos) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, - "string::erase(iterator) called with an iterator not" - " referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__pos) == this, + "string::erase(iterator) called with an iterator not" + " referring to this string"); _LIBCPP_ASSERT(__pos != end(), "string::erase(iterator) called with a non-dereferenceable iterator"); - iterator __b = begin(); + iterator __b = begin(); size_type __r = static_cast(__pos - __b); erase(__r, 1); return __b + static_cast(__r); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::iterator +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __first, const_iterator __last) { - _LIBCPP_DEBUG_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this, - "string::erase(iterator, iterator) called with an iterator not" - " referring to this string"); + _LIBCPP_DEBUG_ASSERT( + __get_const_db()->__find_c_from_i(&__first) == this, + "string::erase(iterator, iterator) called with an iterator not" + " referring to this string"); _LIBCPP_ASSERT(__first <= __last, "string::erase(first, last) called with invalid range"); - iterator __b = begin(); + iterator __b = begin(); size_type __r = static_cast(__first - __b); erase(__r, static_cast(__last - __first)); return __b + static_cast(__r); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::pop_back() +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::pop_back() { - _LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty"); - __erase_to_end(size() - 1); + _LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty"); + __erase_to_end(size() - 1); } - -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::clear() _NOEXCEPT -{ - __invalidate_all_iterators(); - if (__is_long()) - { - traits_type::assign(*__get_long_pointer(), value_type()); - __set_long_size(0); - } - else - { - traits_type::assign(*__get_short_pointer(), value_type()); - __set_short_size(0); - } + +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::clear() _NOEXCEPT +{ + __invalidate_all_iterators(); + if (__is_long()) + { + traits_type::assign(*__get_long_pointer(), value_type()); + __set_long_size(0); + } + else + { + traits_type::assign(*__get_short_pointer(), value_type()); + __set_short_size(0); + } } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__erase_to_end(size_type __pos) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__erase_to_end(size_type __pos) { __null_terminate_at(std::__to_address(__get_pointer()), __pos); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::resize(size_type __n, value_type __c) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::resize(size_type __n, value_type __c) { - size_type __sz = size(); - if (__n > __sz) - append(__n - __sz, __c); - else - __erase_to_end(__n); + size_type __sz = size(); + if (__n > __sz) + append(__n - __sz, __c); + else + __erase_to_end(__n); } template _LIBCPP_CONSTEXPR_AFTER_CXX17 inline void basic_string<_CharT, _Traits, _Allocator>::__resize_default_init(size_type __n) { - size_type __sz = size(); - if (__n > __sz) { - __append_default_init(__n - __sz); - } else - __erase_to_end(__n); + size_type __sz = size(); + if (__n > __sz) + { + __append_default_init(__n - __sz); + } + else + __erase_to_end(__n); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::max_size() const _NOEXCEPT { - size_type __m = __alloc_traits::max_size(__alloc()); - if (__m <= std::numeric_limits::max() / 2) { - return __m - __alignment; - } else { - bool __uses_lsb = __endian_factor == 2; - return __uses_lsb ? __m - __alignment : (__m / 2) - __alignment; - } + size_type __m = __alloc_traits::max_size(__alloc()); + if (__m <= std::numeric_limits::max() / 2) + { + return __m - __alignment; + } + else + { + bool __uses_lsb = __endian_factor == 2; + return __uses_lsb ? __m - __alignment : (__m / 2) - __alignment; + } } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::reserve(size_type __requested_capacity) +_LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::reserve(size_type __requested_capacity) { - if (__requested_capacity > max_size()) - __throw_length_error(); + if (__requested_capacity > max_size()) + __throw_length_error(); - // Make sure reserve(n) never shrinks. This is technically only required in C++20 - // and later (since P0966R1), however we provide consistent behavior in all Standard - // modes because this function is instantiated in the shared library. - if (__requested_capacity <= capacity()) - return; + // Make sure reserve(n) never shrinks. This is technically only required in C++20 + // and later (since P0966R1), however we provide consistent behavior in all Standard + // modes because this function is instantiated in the shared library. + if (__requested_capacity <= capacity()) + return; - size_type __target_capacity = std::max(__requested_capacity, size()); - __target_capacity = __recommend(__target_capacity); - if (__target_capacity == capacity()) return; + size_type __target_capacity = std::max(__requested_capacity, size()); + __target_capacity = __recommend(__target_capacity); + if (__target_capacity == capacity()) + return; - __shrink_or_extend(__target_capacity); + __shrink_or_extend(__target_capacity); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::shrink_to_fit() _NOEXCEPT +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::shrink_to_fit() _NOEXCEPT { - size_type __target_capacity = __recommend(size()); - if (__target_capacity == capacity()) return; + size_type __target_capacity = __recommend(size()); + if (__target_capacity == capacity()) + return; - __shrink_or_extend(__target_capacity); + __shrink_or_extend(__target_capacity); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__shrink_or_extend(size_type __target_capacity) { - size_type __cap = capacity(); - size_type __sz = size(); + size_type __cap = capacity(); + size_type __sz = size(); - pointer __new_data, __p; - bool __was_long, __now_long; - if (__fits_in_sso(__target_capacity)) + pointer __new_data, __p; + bool __was_long, __now_long; + if (__fits_in_sso(__target_capacity)) + { + __was_long = true; + __now_long = false; + __new_data = __get_short_pointer(); + __p = __get_long_pointer(); + } + else + { + if (__target_capacity > __cap) { - __was_long = true; - __now_long = false; - __new_data = __get_short_pointer(); - __p = __get_long_pointer(); + auto __allocation = std::__allocate_at_least(__alloc(), __target_capacity + 1); + __new_data = __allocation.ptr; + __target_capacity = __allocation.count - 1; } else { - if (__target_capacity > __cap) { - auto __allocation = std::__allocate_at_least(__alloc(), __target_capacity + 1); - __new_data = __allocation.ptr; - __target_capacity = __allocation.count - 1; - } - else - { - #ifndef _LIBCPP_NO_EXCEPTIONS - try - { - #endif // _LIBCPP_NO_EXCEPTIONS - auto __allocation = std::__allocate_at_least(__alloc(), __target_capacity + 1); - __new_data = __allocation.ptr; - __target_capacity = __allocation.count - 1; - #ifndef _LIBCPP_NO_EXCEPTIONS - } - catch (...) - { - return; - } - #else // _LIBCPP_NO_EXCEPTIONS - if (__new_data == nullptr) - return; - #endif // _LIBCPP_NO_EXCEPTIONS - } - __begin_lifetime(__new_data, __target_capacity + 1); - __now_long = true; - __was_long = __is_long(); - __p = __get_pointer(); - } - traits_type::copy(std::__to_address(__new_data), - std::__to_address(__p), size()+1); - if (__was_long) - __alloc_traits::deallocate(__alloc(), __p, __cap+1); - if (__now_long) - { - __set_long_cap(__target_capacity+1); - __set_long_size(__sz); - __set_long_pointer(__new_data); +#ifndef _LIBCPP_NO_EXCEPTIONS + try + { +#endif // _LIBCPP_NO_EXCEPTIONS + auto __allocation = std::__allocate_at_least(__alloc(), __target_capacity + 1); + __new_data = __allocation.ptr; + __target_capacity = __allocation.count - 1; +#ifndef _LIBCPP_NO_EXCEPTIONS + } + catch (...) + { + return; + } +#else // _LIBCPP_NO_EXCEPTIONS + if (__new_data == nullptr) + return; +#endif // _LIBCPP_NO_EXCEPTIONS } - else - __set_short_size(__sz); - __invalidate_all_iterators(); + __begin_lifetime(__new_data, __target_capacity + 1); + __now_long = true; + __was_long = __is_long(); + __p = __get_pointer(); + } + traits_type::copy(std::__to_address(__new_data), std::__to_address(__p), size() + 1); + if (__was_long) + __alloc_traits::deallocate(__alloc(), __p, __cap + 1); + if (__now_long) + { + __set_long_cap(__target_capacity + 1); + __set_long_size(__sz); + __set_long_pointer(__new_data); + } + else + __set_short_size(__sz); + __invalidate_all_iterators(); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::const_reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); - return *(data() + __pos); + _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); + return *(data() + __pos); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) _NOEXCEPT { - _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); - return *(__get_pointer() + __pos); + _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); + return *(__get_pointer() + __pos); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::const_reference +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) const { - if (__n >= size()) - __throw_out_of_range(); - return (*this)[__n]; + if (__n >= size()) + __throw_out_of_range(); + return (*this)[__n]; } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::reference +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::at(size_type __n) { - if (__n >= size()) - __throw_out_of_range(); - return (*this)[__n]; + if (__n >= size()) + __throw_out_of_range(); + return (*this)[__n]; } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::front() _NOEXCEPT { - _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); - return *__get_pointer(); + _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); + return *__get_pointer(); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::const_reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::front() const _NOEXCEPT { - _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); - return *data(); + _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); + return *data(); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::back() _NOEXCEPT { - _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); - return *(__get_pointer() + size() - 1); + _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); + return *(__get_pointer() + size() - 1); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::const_reference +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::back() const _NOEXCEPT { - _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); - return *(data() + size() - 1); + _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); + return *(data() + size() - 1); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::copy(value_type* __s, size_type __n, size_type __pos) const { - size_type __sz = size(); - if (__pos > __sz) - __throw_out_of_range(); - size_type __rlen = std::min(__n, __sz - __pos); - traits_type::copy(__s, data() + __pos, __rlen); - return __rlen; + size_type __sz = size(); + if (__pos > __sz) + __throw_out_of_range(); + size_type __rlen = std::min(__n, __sz - __pos); + traits_type::copy(__s, data() + __pos, __rlen); + return __rlen; } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> basic_string<_CharT, _Traits, _Allocator>::substr(size_type __pos, size_type __n) const { - return basic_string(*this, __pos, __n, __alloc()); + return basic_string(*this, __pos, __n, __alloc()); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str) +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str) #if _LIBCPP_STD_VER >= 14 - _NOEXCEPT + _NOEXCEPT #else - _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || - __is_nothrow_swappable::value) + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || __is_nothrow_swappable::value) #endif { #if _LIBCPP_DEBUG_LEVEL == 2 - if (!__libcpp_is_constant_evaluated()) { - if (!__is_long()) - __get_db()->__invalidate_all(this); - if (!__str.__is_long()) - __get_db()->__invalidate_all(&__str); - __get_db()->swap(this, &__str); - } + if (!__libcpp_is_constant_evaluated()) + { + if (!__is_long()) + __get_db()->__invalidate_all(this); + if (!__str.__is_long()) + __get_db()->__invalidate_all(&__str); + __get_db()->swap(this, &__str); + } #endif - _LIBCPP_ASSERT( - __alloc_traits::propagate_on_container_swap::value || - __alloc_traits::is_always_equal::value || - __alloc() == __str.__alloc(), "swapping non-equal allocators"); - std::swap(__r_.first(), __str.__r_.first()); - std::__swap_allocator(__alloc(), __str.__alloc()); + _LIBCPP_ASSERT( + __alloc_traits::propagate_on_container_swap::value || __alloc_traits::is_always_equal::value + || __alloc() == __str.__alloc(), + "swapping non-equal allocators"); + std::swap(__r_.first(), __str.__r_.first()); + std::__swap_allocator(__alloc(), __str.__alloc()); } // find @@ -3622,919 +3512,747 @@ template struct _LIBCPP_HIDDEN __traits_eq { - typedef typename _Traits::char_type char_type; - _LIBCPP_HIDE_FROM_ABI - bool operator()(const char_type& __x, const char_type& __y) _NOEXCEPT - {return _Traits::eq(__x, __y);} + typedef typename _Traits::char_type char_type; + _LIBCPP_HIDE_FROM_ABI bool operator()(const char_type& __x, const char_type& __y) _NOEXCEPT + { + return _Traits::eq(__x, __y); + } }; -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): received nullptr"); - return __str_find - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): received nullptr"); + return __str_find(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_find - (data(), size(), __str.data(), __pos, __str.size()); + return __str_find(data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::find(const _Tp &__t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::find(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_find - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_find(data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::find(): received nullptr"); - return __str_find - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::find(): received nullptr"); + return __str_find(data(), size(), __s, __pos, traits_type::length(__s)); } -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find(value_type __c, - size_type __pos) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find(value_type __c, size_type __pos) const _NOEXCEPT { - return __str_find - (data(), size(), __c, __pos); + return __str_find(data(), size(), __c, __pos); } // rfind -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): received nullptr"); - return __str_rfind - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): received nullptr"); + return __str_rfind(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::rfind(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::rfind(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_rfind - (data(), size(), __str.data(), __pos, __str.size()); + return __str_rfind(data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::rfind(const _Tp& __t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::rfind(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_rfind - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_rfind(data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::rfind(): received nullptr"); - return __str_rfind - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::rfind(): received nullptr"); + return __str_rfind(data(), size(), __s, __pos, traits_type::length(__s)); } -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::rfind(value_type __c, - size_type __pos) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::rfind(value_type __c, size_type __pos) const _NOEXCEPT { - return __str_rfind - (data(), size(), __c, __pos); + return __str_rfind(data(), size(), __c, __pos); } // find_first_of -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_of( + const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): received nullptr"); - return __str_find_first_of - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): received nullptr"); + return __str_find_first_of(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_of(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_of(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_find_first_of - (data(), size(), __str.data(), __pos, __str.size()); + return __str_find_first_of( + data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::find_first_of(const _Tp& __t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::find_first_of(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_find_first_of - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_find_first_of(data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): received nullptr"); - return __str_find_first_of - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): received nullptr"); + return __str_find_first_of( + data(), size(), __s, __pos, traits_type::length(__s)); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_of(value_type __c, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_of(value_type __c, size_type __pos) const _NOEXCEPT { - return find(__c, __pos); + return find(__c, __pos); } // find_last_of -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_of( + const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): received nullptr"); - return __str_find_last_of - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): received nullptr"); + return __str_find_last_of(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_of(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_of(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_find_last_of - (data(), size(), __str.data(), __pos, __str.size()); + return __str_find_last_of( + data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::find_last_of(const _Tp& __t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::find_last_of(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_find_last_of - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_find_last_of(data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): received nullptr"); - return __str_find_last_of - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): received nullptr"); + return __str_find_last_of( + data(), size(), __s, __pos, traits_type::length(__s)); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_of(value_type __c, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_of(value_type __c, size_type __pos) const _NOEXCEPT { - return rfind(__c, __pos); + return rfind(__c, __pos); } // find_first_not_of -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_not_of( + const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): received nullptr"); - return __str_find_first_not_of - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): received nullptr"); + return __str_find_first_not_of(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_find_first_not_of - (data(), size(), __str.data(), __pos, __str.size()); + return __str_find_first_not_of( + data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const _Tp& __t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_find_first_not_of - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_find_first_not_of( + data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): received nullptr"); - return __str_find_first_not_of - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): received nullptr"); + return __str_find_first_not_of( + data(), size(), __s, __pos, traits_type::length(__s)); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(value_type __c, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(value_type __c, size_type __pos) const _NOEXCEPT { - return __str_find_first_not_of - (data(), size(), __c, __pos); + return __str_find_first_not_of(data(), size(), __c, __pos); } // find_last_not_of -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, - size_type __pos, - size_type __n) const _NOEXCEPT +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_not_of( + const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { - _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): received nullptr"); - return __str_find_last_not_of - (data(), size(), __s, __pos, __n); + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): received nullptr"); + return __str_find_last_not_of(data(), size(), __s, __pos, __n); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const basic_string& __str, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const basic_string& __str, size_type __pos) const _NOEXCEPT { - return __str_find_last_not_of - (data(), size(), __str.data(), __pos, __str.size()); + return __str_find_last_not_of( + data(), size(), __str.data(), __pos, __str.size()); } -template +template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - typename basic_string<_CharT, _Traits, _Allocator>::size_type -> -basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const _Tp& __t, - size_type __pos) const _NOEXCEPT + typename basic_string<_CharT, _Traits, _Allocator>::size_type > +basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const _Tp& __t, size_type __pos) const _NOEXCEPT { - __self_view __sv = __t; - return __str_find_last_not_of - (data(), size(), __sv.data(), __pos, __sv.size()); + __self_view __sv = __t; + return __str_find_last_not_of( + data(), size(), __sv.data(), __pos, __sv.size()); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, size_type __pos) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): received nullptr"); - return __str_find_last_not_of - (data(), size(), __s, __pos, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): received nullptr"); + return __str_find_last_not_of( + data(), size(), __s, __pos, traits_type::length(__s)); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -typename basic_string<_CharT, _Traits, _Allocator>::size_type -basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(value_type __c, - size_type __pos) const _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 typename basic_string<_CharT, _Traits, _Allocator>::size_type +basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(value_type __c, size_type __pos) const _NOEXCEPT { - return __str_find_last_not_of - (data(), size(), __c, __pos); + return __str_find_last_not_of(data(), size(), __c, __pos); } // compare template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - int -> +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, int > basic_string<_CharT, _Traits, _Allocator>::compare(const _Tp& __t) const _NOEXCEPT { - __self_view __sv = __t; - size_t __lhs_sz = size(); - size_t __rhs_sz = __sv.size(); - int __result = traits_type::compare(data(), __sv.data(), - std::min(__lhs_sz, __rhs_sz)); - if (__result != 0) - return __result; - if (__lhs_sz < __rhs_sz) - return -1; - if (__lhs_sz > __rhs_sz) - return 1; - return 0; + __self_view __sv = __t; + size_t __lhs_sz = size(); + size_t __rhs_sz = __sv.size(); + int __result = traits_type::compare(data(), __sv.data(), std::min(__lhs_sz, __rhs_sz)); + if (__result != 0) + return __result; + if (__lhs_sz < __rhs_sz) + return -1; + if (__lhs_sz > __rhs_sz) + return 1; + return 0; } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -int +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 int basic_string<_CharT, _Traits, _Allocator>::compare(const basic_string& __str) const _NOEXCEPT { - return compare(__self_view(__str)); + return compare(__self_view(__str)); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -int -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const value_type* __s, - size_type __n2) const +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 int basic_string<_CharT, _Traits, _Allocator>::compare( + size_type __pos1, size_type __n1, const value_type* __s, size_type __n2) const { - _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): received nullptr"); - size_type __sz = size(); - if (__pos1 > __sz || __n2 == npos) - __throw_out_of_range(); - size_type __rlen = std::min(__n1, __sz - __pos1); - int __r = traits_type::compare(data() + __pos1, __s, std::min(__rlen, __n2)); - if (__r == 0) - { - if (__rlen < __n2) - __r = -1; - else if (__rlen > __n2) - __r = 1; - } - return __r; + _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): received nullptr"); + size_type __sz = size(); + if (__pos1 > __sz || __n2 == npos) + __throw_out_of_range(); + size_type __rlen = std::min(__n1, __sz - __pos1); + int __r = traits_type::compare(data() + __pos1, __s, std::min(__rlen, __n2)); + if (__r == 0) + { + if (__rlen < __n2) + __r = -1; + else if (__rlen > __n2) + __r = 1; + } + return __r; } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< - __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, - int -> -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const _Tp& __t) const +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value, int > +basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, size_type __n1, const _Tp& __t) const { - __self_view __sv = __t; - return compare(__pos1, __n1, __sv.data(), __sv.size()); + __self_view __sv = __t; + return compare(__pos1, __n1, __sv.data(), __sv.size()); } template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -int -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const basic_string& __str) const +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 int +basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, size_type __n1, const basic_string& __str) const { - return compare(__pos1, __n1, __str.data(), __str.size()); + return compare(__pos1, __n1, __str.data(), __str.size()); } template template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -__enable_if_t -< +_LIBCPP_CONSTEXPR_AFTER_CXX17 __enable_if_t< __can_be_converted_to_string_view<_CharT, _Traits, _Tp>::value - && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, - int -> -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const _Tp& __t, - size_type __pos2, - size_type __n2) const + && !__is_same_uncvref<_Tp, basic_string<_CharT, _Traits, _Allocator> >::value, + int > +basic_string<_CharT, _Traits, _Allocator>::compare( + size_type __pos1, size_type __n1, const _Tp& __t, size_type __pos2, size_type __n2) const { - __self_view __sv = __t; - return __self_view(*this).substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); + __self_view __sv = __t; + return __self_view(*this).substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -int -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const basic_string& __str, - size_type __pos2, - size_type __n2) const +_LIBCPP_CONSTEXPR_AFTER_CXX17 int basic_string<_CharT, _Traits, _Allocator>::compare( + size_type __pos1, size_type __n1, const basic_string& __str, size_type __pos2, size_type __n2) const { - return compare(__pos1, __n1, __self_view(__str), __pos2, __n2); + return compare(__pos1, __n1, __self_view(__str), __pos2, __n2); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -int +_LIBCPP_CONSTEXPR_AFTER_CXX17 int basic_string<_CharT, _Traits, _Allocator>::compare(const value_type* __s) const _NOEXCEPT { - _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); - return compare(0, npos, __s, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); + return compare(0, npos, __s, traits_type::length(__s)); } template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -int -basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, - size_type __n1, - const value_type* __s) const +_LIBCPP_CONSTEXPR_AFTER_CXX17 int +basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, size_type __n1, const value_type* __s) const { - _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); - return compare(__pos1, __n1, __s, traits_type::length(__s)); + _LIBCPP_ASSERT(__s != nullptr, "string::compare(): received nullptr"); + return compare(__pos1, __n1, __s, traits_type::length(__s)); } // __invariants -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -bool -basic_string<_CharT, _Traits, _Allocator>::__invariants() const +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 bool basic_string<_CharT, _Traits, _Allocator>::__invariants() const { - if (size() > capacity()) - return false; - if (capacity() < __min_cap - 1) - return false; - if (data() == nullptr) - return false; - if (data()[size()] != value_type()) - return false; - return true; + if (size() > capacity()) + return false; + if (capacity() < __min_cap - 1) + return false; + if (data() == nullptr) + return false; + if (data()[size()] != value_type()) + return false; + return true; } // __clear_and_shrink -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -basic_string<_CharT, _Traits, _Allocator>::__clear_and_shrink() _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 void basic_string<_CharT, _Traits, _Allocator>::__clear_and_shrink() _NOEXCEPT { - clear(); - if(__is_long()) - { - __alloc_traits::deallocate(__alloc(), __get_long_pointer(), capacity() + 1); - __set_long_cap(0); - __set_short_size(0); - traits_type::assign(*__get_short_pointer(), value_type()); - } + clear(); + if (__is_long()) + { + __alloc_traits::deallocate(__alloc(), __get_long_pointer(), capacity() + 1); + __set_long_cap(0); + __set_short_size(0); + traits_type::assign(*__get_short_pointer(), value_type()); + } } // operator== -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator==(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator==( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - size_t __lhs_sz = __lhs.size(); - return __lhs_sz == __rhs.size() && _Traits::compare(__lhs.data(), - __rhs.data(), - __lhs_sz) == 0; + size_t __lhs_sz = __lhs.size(); + return __lhs_sz == __rhs.size() && _Traits::compare(__lhs.data(), __rhs.data(), __lhs_sz) == 0; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator==(const basic_string, _Allocator>& __lhs, - const basic_string, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator==( + const basic_string, _Allocator>& __lhs, + const basic_string, _Allocator>& __rhs) _NOEXCEPT { - size_t __lhs_sz = __lhs.size(); - if (__lhs_sz != __rhs.size()) - return false; - const char* __lp = __lhs.data(); - const char* __rp = __rhs.data(); - if (__lhs.__is_long()) - return char_traits::compare(__lp, __rp, __lhs_sz) == 0; - for (; __lhs_sz != 0; --__lhs_sz, ++__lp, ++__rp) - if (*__lp != *__rp) - return false; - return true; + size_t __lhs_sz = __lhs.size(); + if (__lhs_sz != __rhs.size()) + return false; + const char* __lp = __lhs.data(); + const char* __rp = __rhs.data(); + if (__lhs.__is_long()) + return char_traits::compare(__lp, __rp, __lhs_sz) == 0; + for (; __lhs_sz != 0; --__lhs_sz, ++__lp, ++__rp) + if (*__lp != *__rp) + return false; + return true; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator==(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator==(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - typedef basic_string<_CharT, _Traits, _Allocator> _String; - _LIBCPP_ASSERT(__lhs != nullptr, "operator==(char*, basic_string): received nullptr"); - size_t __lhs_len = _Traits::length(__lhs); - if (__lhs_len != __rhs.size()) return false; - return __rhs.compare(0, _String::npos, __lhs, __lhs_len) == 0; + typedef basic_string<_CharT, _Traits, _Allocator> _String; + _LIBCPP_ASSERT(__lhs != nullptr, "operator==(char*, basic_string): received nullptr"); + size_t __lhs_len = _Traits::length(__lhs); + if (__lhs_len != __rhs.size()) + return false; + return __rhs.compare(0, _String::npos, __lhs, __lhs_len) == 0; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator==(const basic_string<_CharT,_Traits,_Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator==(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - typedef basic_string<_CharT, _Traits, _Allocator> _String; - _LIBCPP_ASSERT(__rhs != nullptr, "operator==(basic_string, char*): received nullptr"); - size_t __rhs_len = _Traits::length(__rhs); - if (__rhs_len != __lhs.size()) return false; - return __lhs.compare(0, _String::npos, __rhs, __rhs_len) == 0; + typedef basic_string<_CharT, _Traits, _Allocator> _String; + _LIBCPP_ASSERT(__rhs != nullptr, "operator==(basic_string, char*): received nullptr"); + size_t __rhs_len = _Traits::length(__rhs); + if (__rhs_len != __lhs.size()) + return false; + return __lhs.compare(0, _String::npos, __rhs, __rhs_len) == 0; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator!=(const basic_string<_CharT,_Traits,_Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator!=( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__lhs == __rhs); + return !(__lhs == __rhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator!=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator!=(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__lhs == __rhs); + return !(__lhs == __rhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator!=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator!=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - return !(__lhs == __rhs); + return !(__lhs == __rhs); } // operator< -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator<( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return __lhs.compare(__rhs) < 0; + return __lhs.compare(__rhs) < 0; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator< (const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator<(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - return __lhs.compare(__rhs) < 0; + return __lhs.compare(__rhs) < 0; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator< (const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator<(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return __rhs.compare(__lhs) > 0; + return __rhs.compare(__lhs) > 0; } // operator> -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator>( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return __rhs < __lhs; + return __rhs < __lhs; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator> (const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator>(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - return __rhs < __lhs; + return __rhs < __lhs; } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator> (const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator>(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return __rhs < __lhs; + return __rhs < __lhs; } // operator<= -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator<=( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__rhs < __lhs); + return !(__rhs < __lhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator<=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - return !(__rhs < __lhs); + return !(__rhs < __lhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator<=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator<=(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__rhs < __lhs); + return !(__rhs < __lhs); } // operator>= -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool operator>=( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, + const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__lhs < __rhs); + return !(__lhs < __rhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const _CharT* __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator>=(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) _NOEXCEPT { - return !(__lhs < __rhs); + return !(__lhs < __rhs); } -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI -bool -operator>=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 _LIBCPP_HIDE_FROM_ABI bool +operator>=(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) _NOEXCEPT { - return !(__lhs < __rhs); + return !(__lhs < __rhs); } // operator + -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, - const basic_string<_CharT, _Traits, _Allocator>& __rhs) -{ - using _String = basic_string<_CharT, _Traits, _Allocator>; - auto __lhs_sz = __lhs.size(); - auto __rhs_sz = __rhs.size(); - _String __r(__uninitialized_size_tag(), - __lhs_sz + __rhs_sz, - _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); - auto __ptr = std::__to_address(__r.__get_pointer()); - _Traits::copy(__ptr, __lhs.data(), __lhs_sz); - _Traits::copy(__ptr + __lhs_sz, __rhs.data(), __rhs_sz); - _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); - return __r; -} - -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(const _CharT* __lhs , const basic_string<_CharT,_Traits,_Allocator>& __rhs) -{ - using _String = basic_string<_CharT, _Traits, _Allocator>; - auto __lhs_sz = _Traits::length(__lhs); - auto __rhs_sz = __rhs.size(); - _String __r(__uninitialized_size_tag(), - __lhs_sz + __rhs_sz, - _String::__alloc_traits::select_on_container_copy_construction(__rhs.get_allocator())); - auto __ptr = std::__to_address(__r.__get_pointer()); - _Traits::copy(__ptr, __lhs, __lhs_sz); - _Traits::copy(__ptr + __lhs_sz, __rhs.data(), __rhs_sz); - _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); - return __r; -} - -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Allocator>& __rhs) -{ - using _String = basic_string<_CharT, _Traits, _Allocator>; - typename _String::size_type __rhs_sz = __rhs.size(); - _String __r(__uninitialized_size_tag(), - __rhs_sz + 1, - _String::__alloc_traits::select_on_container_copy_construction(__rhs.get_allocator())); - auto __ptr = std::__to_address(__r.__get_pointer()); - _Traits::assign(__ptr, 1, __lhs); - _Traits::copy(__ptr + 1, __rhs.data(), __rhs_sz); - _Traits::assign(__ptr + 1 + __rhs_sz, 1, _CharT()); - return __r; -} - -template -inline _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+( + const basic_string<_CharT, _Traits, _Allocator>& __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) +{ + using _String = basic_string<_CharT, _Traits, _Allocator>; + auto __lhs_sz = __lhs.size(); + auto __rhs_sz = __rhs.size(); + _String __r( + __uninitialized_size_tag(), + __lhs_sz + __rhs_sz, + _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); + auto __ptr = std::__to_address(__r.__get_pointer()); + _Traits::copy(__ptr, __lhs.data(), __lhs_sz); + _Traits::copy(__ptr + __lhs_sz, __rhs.data(), __rhs_sz); + _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); + return __r; +} + +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(const _CharT* __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) +{ + using _String = basic_string<_CharT, _Traits, _Allocator>; + auto __lhs_sz = _Traits::length(__lhs); + auto __rhs_sz = __rhs.size(); + _String __r( + __uninitialized_size_tag(), + __lhs_sz + __rhs_sz, + _String::__alloc_traits::select_on_container_copy_construction(__rhs.get_allocator())); + auto __ptr = std::__to_address(__r.__get_pointer()); + _Traits::copy(__ptr, __lhs, __lhs_sz); + _Traits::copy(__ptr + __lhs_sz, __rhs.data(), __rhs_sz); + _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); + return __r; +} + +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) +{ + using _String = basic_string<_CharT, _Traits, _Allocator>; + typename _String::size_type __rhs_sz = __rhs.size(); + _String __r( + __uninitialized_size_tag(), + __rhs_sz + 1, + _String::__alloc_traits::select_on_container_copy_construction(__rhs.get_allocator())); + auto __ptr = std::__to_address(__r.__get_pointer()); + _Traits::assign(__ptr, 1, __lhs); + _Traits::copy(__ptr + 1, __rhs.data(), __rhs_sz); + _Traits::assign(__ptr + 1 + __rhs_sz, 1, _CharT()); + return __r; +} + +template +inline _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, const _CharT* __rhs) { - using _String = basic_string<_CharT, _Traits, _Allocator>; - typename _String::size_type __lhs_sz = __lhs.size(); - typename _String::size_type __rhs_sz = _Traits::length(__rhs); - _String __r(__uninitialized_size_tag(), - __lhs_sz + __rhs_sz, - _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); - auto __ptr = std::__to_address(__r.__get_pointer()); - _Traits::copy(__ptr, __lhs.data(), __lhs_sz); - _Traits::copy(__ptr + __lhs_sz, __rhs, __rhs_sz); - _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); - return __r; + using _String = basic_string<_CharT, _Traits, _Allocator>; + typename _String::size_type __lhs_sz = __lhs.size(); + typename _String::size_type __rhs_sz = _Traits::length(__rhs); + _String __r( + __uninitialized_size_tag(), + __lhs_sz + __rhs_sz, + _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); + auto __ptr = std::__to_address(__r.__get_pointer()); + _Traits::copy(__ptr, __lhs.data(), __lhs_sz); + _Traits::copy(__ptr + __lhs_sz, __rhs, __rhs_sz); + _Traits::assign(__ptr + __lhs_sz + __rhs_sz, 1, _CharT()); + return __r; } -template -_LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +_LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, _CharT __rhs) { - using _String = basic_string<_CharT, _Traits, _Allocator>; - typename _String::size_type __lhs_sz = __lhs.size(); - _String __r(__uninitialized_size_tag(), - __lhs_sz + 1, - _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); - auto __ptr = std::__to_address(__r.__get_pointer()); - _Traits::copy(__ptr, __lhs.data(), __lhs_sz); - _Traits::assign(__ptr + __lhs_sz, 1, __rhs); - _Traits::assign(__ptr + 1 + __lhs_sz, 1, _CharT()); - return __r; + using _String = basic_string<_CharT, _Traits, _Allocator>; + typename _String::size_type __lhs_sz = __lhs.size(); + _String __r( + __uninitialized_size_tag(), + __lhs_sz + 1, + _String::__alloc_traits::select_on_container_copy_construction(__lhs.get_allocator())); + auto __ptr = std::__to_address(__r.__get_pointer()); + _Traits::copy(__ptr, __lhs.data(), __lhs_sz); + _Traits::assign(__ptr + __lhs_sz, 1, __rhs); + _Traits::assign(__ptr + 1 + __lhs_sz, 1, _CharT()); + return __r; } #ifndef _LIBCPP_CXX03_LANG -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const basic_string<_CharT, _Traits, _Allocator>& __rhs) { - return std::move(__lhs.append(__rhs)); + return std::move(__lhs.append(__rhs)); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(const basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) { - return std::move(__rhs.insert(0, __lhs)); + return std::move(__rhs.insert(0, __lhs)); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) { - return std::move(__lhs.append(__rhs)); + return std::move(__lhs.append(__rhs)); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(const _CharT* __lhs , basic_string<_CharT,_Traits,_Allocator>&& __rhs) +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(const _CharT* __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) { - return std::move(__rhs.insert(0, __lhs)); + return std::move(__rhs.insert(0, __lhs)); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> -operator+(_CharT __lhs, basic_string<_CharT,_Traits,_Allocator>&& __rhs) +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> +operator+(_CharT __lhs, basic_string<_CharT, _Traits, _Allocator>&& __rhs) { - __rhs.insert(__rhs.begin(), __lhs); - return std::move(__rhs); + __rhs.insert(__rhs.begin(), __lhs); + return std::move(__rhs); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, const _CharT* __rhs) { - return std::move(__lhs.append(__rhs)); + return std::move(__lhs.append(__rhs)); } -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -basic_string<_CharT, _Traits, _Allocator> +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string<_CharT, _Traits, _Allocator> operator+(basic_string<_CharT, _Traits, _Allocator>&& __lhs, _CharT __rhs) { - __lhs.push_back(__rhs); - return std::move(__lhs); + __lhs.push_back(__rhs); + return std::move(__lhs); } #endif // _LIBCPP_CXX03_LANG // swap -template -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 -void -swap(basic_string<_CharT, _Traits, _Allocator>& __lhs, - basic_string<_CharT, _Traits, _Allocator>& __rhs) - _NOEXCEPT_(_NOEXCEPT_(__lhs.swap(__rhs))) +template +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void +swap(basic_string<_CharT, _Traits, _Allocator>& __lhs, basic_string<_CharT, _Traits, _Allocator>& __rhs) + _NOEXCEPT_(_NOEXCEPT_(__lhs.swap(__rhs))) { - __lhs.swap(__rhs); + __lhs.swap(__rhs); } -_LIBCPP_FUNC_VIS int stoi (const string& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS long stol (const string& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS unsigned long stoul (const string& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS long long stoll (const string& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS int stoi(const string& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS long stol(const string& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS unsigned long stoul(const string& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS long long stoll(const string& __str, size_t* __idx = nullptr, int __base = 10); _LIBCPP_FUNC_VIS unsigned long long stoull(const string& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS float stof (const string& __str, size_t* __idx = nullptr); -_LIBCPP_FUNC_VIS double stod (const string& __str, size_t* __idx = nullptr); +_LIBCPP_FUNC_VIS float stof(const string& __str, size_t* __idx = nullptr); +_LIBCPP_FUNC_VIS double stod(const string& __str, size_t* __idx = nullptr); _LIBCPP_FUNC_VIS long double stold(const string& __str, size_t* __idx = nullptr); _LIBCPP_FUNC_VIS string to_string(int __val); @@ -4548,14 +4266,14 @@ _LIBCPP_FUNC_VIS string to_string(long double __val); #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS -_LIBCPP_FUNC_VIS int stoi (const wstring& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS long stol (const wstring& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS unsigned long stoul (const wstring& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS long long stoll (const wstring& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS int stoi(const wstring& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS long stol(const wstring& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS unsigned long stoul(const wstring& __str, size_t* __idx = nullptr, int __base = 10); +_LIBCPP_FUNC_VIS long long stoll(const wstring& __str, size_t* __idx = nullptr, int __base = 10); _LIBCPP_FUNC_VIS unsigned long long stoull(const wstring& __str, size_t* __idx = nullptr, int __base = 10); -_LIBCPP_FUNC_VIS float stof (const wstring& __str, size_t* __idx = nullptr); -_LIBCPP_FUNC_VIS double stod (const wstring& __str, size_t* __idx = nullptr); +_LIBCPP_FUNC_VIS float stof(const wstring& __str, size_t* __idx = nullptr); +_LIBCPP_FUNC_VIS double stod(const wstring& __str, size_t* __idx = nullptr); _LIBCPP_FUNC_VIS long double stold(const wstring& __str, size_t* __idx = nullptr); _LIBCPP_FUNC_VIS wstring to_wstring(int __val); @@ -4569,110 +4287,90 @@ _LIBCPP_FUNC_VIS wstring to_wstring(long double __val); #endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS -template -_LIBCPP_TEMPLATE_DATA_VIS -const typename basic_string<_CharT, _Traits, _Allocator>::size_type - basic_string<_CharT, _Traits, _Allocator>::npos; +template +_LIBCPP_TEMPLATE_DATA_VIS const typename basic_string<_CharT, _Traits, _Allocator>::size_type + basic_string<_CharT, _Traits, _Allocator>::npos; template -struct _LIBCPP_TEMPLATE_VIS - hash, _Allocator> > - : public unary_function< - basic_string<_CharT, char_traits<_CharT>, _Allocator>, size_t> -{ - size_t - operator()(const basic_string<_CharT, char_traits<_CharT>, _Allocator>& __val) const _NOEXCEPT - { return __do_string_hash(__val.data(), __val.data() + __val.size()); } +struct _LIBCPP_TEMPLATE_VIS hash, _Allocator> > + : public unary_function< basic_string<_CharT, char_traits<_CharT>, _Allocator>, size_t> +{ + size_t operator()(const basic_string<_CharT, char_traits<_CharT>, _Allocator>& __val) const _NOEXCEPT + { + return __do_string_hash(__val.data(), __val.data() + __val.size()); + } }; - -template +template basic_ostream<_CharT, _Traits>& -operator<<(basic_ostream<_CharT, _Traits>& __os, - const basic_string<_CharT, _Traits, _Allocator>& __str); +operator<<(basic_ostream<_CharT, _Traits>& __os, const basic_string<_CharT, _Traits, _Allocator>& __str); -template +template basic_istream<_CharT, _Traits>& -operator>>(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Allocator>& __str); +operator>>(basic_istream<_CharT, _Traits>& __is, basic_string<_CharT, _Traits, _Allocator>& __str); -template +template basic_istream<_CharT, _Traits>& -getline(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); +getline(basic_istream<_CharT, _Traits>& __is, basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); -template -inline _LIBCPP_HIDE_FROM_ABI -basic_istream<_CharT, _Traits>& -getline(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Allocator>& __str); +template +inline _LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>& +getline(basic_istream<_CharT, _Traits>& __is, basic_string<_CharT, _Traits, _Allocator>& __str); -template -inline _LIBCPP_HIDE_FROM_ABI -basic_istream<_CharT, _Traits>& -getline(basic_istream<_CharT, _Traits>&& __is, - basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); +template +inline _LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>& +getline(basic_istream<_CharT, _Traits>&& __is, basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm); -template -inline _LIBCPP_HIDE_FROM_ABI -basic_istream<_CharT, _Traits>& -getline(basic_istream<_CharT, _Traits>&& __is, - basic_string<_CharT, _Traits, _Allocator>& __str); +template +inline _LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>& +getline(basic_istream<_CharT, _Traits>&& __is, basic_string<_CharT, _Traits, _Allocator>& __str); #if _LIBCPP_STD_VER > 17 template -inline _LIBCPP_HIDE_FROM_ABI - typename basic_string<_CharT, _Traits, _Allocator>::size_type - erase(basic_string<_CharT, _Traits, _Allocator>& __str, const _Up& __v) { +inline _LIBCPP_HIDE_FROM_ABI typename basic_string<_CharT, _Traits, _Allocator>::size_type +erase(basic_string<_CharT, _Traits, _Allocator>& __str, const _Up& __v) +{ auto __old_size = __str.size(); __str.erase(std::remove(__str.begin(), __str.end(), __v), __str.end()); return __old_size - __str.size(); } template -inline _LIBCPP_HIDE_FROM_ABI - typename basic_string<_CharT, _Traits, _Allocator>::size_type - erase_if(basic_string<_CharT, _Traits, _Allocator>& __str, - _Predicate __pred) { +inline _LIBCPP_HIDE_FROM_ABI typename basic_string<_CharT, _Traits, _Allocator>::size_type +erase_if(basic_string<_CharT, _Traits, _Allocator>& __str, _Predicate __pred) +{ auto __old_size = __str.size(); - __str.erase(std::remove_if(__str.begin(), __str.end(), __pred), - __str.end()); + __str.erase(std::remove_if(__str.begin(), __str.end(), __pred), __str.end()); return __old_size - __str.size(); } #endif #if _LIBCPP_DEBUG_LEVEL == 2 -template -bool -basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const +template +bool basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const { - return data() <= std::__to_address(__i->base()) && - std::__to_address(__i->base()) < data() + size(); + return data() <= std::__to_address(__i->base()) && std::__to_address(__i->base()) < data() + size(); } -template -bool -basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const +template +bool basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const { - return data() < std::__to_address(__i->base()) && - std::__to_address(__i->base()) <= data() + size(); + return data() < std::__to_address(__i->base()) && std::__to_address(__i->base()) <= data() + size(); } -template -bool -basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const +template +bool basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const { - const value_type* __p = std::__to_address(__i->base()) + __n; - return data() <= __p && __p <= data() + size(); + const value_type* __p = std::__to_address(__i->base()) + __n; + return data() <= __p && __p <= data() + size(); } -template -bool -basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const +template +bool basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const { - const value_type* __p = std::__to_address(__i->base()) + __n; - return data() <= __p && __p < data() + size(); + const value_type* __p = std::__to_address(__i->base()) + __n; + return data() <= __p && __p < data() + size(); } #endif // _LIBCPP_DEBUG_LEVEL == 2 @@ -4681,52 +4379,52 @@ // Literal suffixes for basic_string [basic.string.literals] inline namespace literals { - inline namespace string_literals +inline namespace string_literals +{ + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string + operator"" s(const char* __str, size_t __len) { - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string operator "" s( const char *__str, size_t __len ) - { - return basic_string (__str, __len); - } + return basic_string(__str, __len); + } -#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string operator "" s( const wchar_t *__str, size_t __len ) - { - return basic_string (__str, __len); - } -#endif +# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string + operator"" s(const wchar_t* __str, size_t __len) + { + return basic_string(__str, __len); + } +# endif -#ifndef _LIBCPP_HAS_NO_CHAR8_T - inline _LIBCPP_HIDE_FROM_ABI constexpr - basic_string operator "" s(const char8_t *__str, size_t __len) _NOEXCEPT - { - return basic_string (__str, __len); - } -#endif +# ifndef _LIBCPP_HAS_NO_CHAR8_T + inline _LIBCPP_HIDE_FROM_ABI constexpr basic_string + operator"" s(const char8_t* __str, size_t __len) _NOEXCEPT + { + return basic_string(__str, __len); + } +# endif - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string operator "" s( const char16_t *__str, size_t __len ) - { - return basic_string (__str, __len); - } + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string + operator"" s(const char16_t* __str, size_t __len) + { + return basic_string(__str, __len); + } - inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 - basic_string operator "" s( const char32_t *__str, size_t __len ) - { - return basic_string (__str, __len); - } - } // namespace string_literals + inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 basic_string + operator"" s(const char32_t* __str, size_t __len) + { + return basic_string(__str, __len); + } +} // namespace string_literals } // namespace literals -#if _LIBCPP_STD_VER > 17 +# if _LIBCPP_STD_VER > 17 template <> inline constexpr bool __format::__enable_insertable> = true; -#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS +# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS template <> inline constexpr bool __format::__enable_insertable> = true; -#endif -#endif +# endif +# endif #endif diff --git a/libcxx/utils/ci/buildkite-pipeline.yml b/libcxx/utils/ci/buildkite-pipeline.yml --- a/libcxx/utils/ci/buildkite-pipeline.yml +++ b/libcxx/utils/ci/buildkite-pipeline.yml @@ -33,8 +33,6 @@ automatic: - exit_status: -1 # Agent was lost limit: 2 - soft_fail: - - exit_status: 1 timeout_in_minutes: 120 - label: "Generated output"