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Differential D42510

[libcxx] Always allow temporary binding when __reference_binds_to_temporary doesn't exist
AbandonedPublic

Authored by timshen on Jan 24 2018, 3:19 PM.

Details

Reviewers
EricWF
rsmith
Summary

This is a follow-up to D41977.

Diff Detail

Revision Contents

PathSize
libcxx/
include/
2 lines

Diff 131367

libcxx/include/tuple

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class __tuple_leaf class __tuple_leaf
{ {
_Hp __value_; _Hp __value_;
template <class _Tp> template <class _Tp>
static constexpr bool __can_bind_reference() { static constexpr bool __can_bind_reference() {
#if __has_keyword(__reference_binds_to_temporary) #if __has_keyword(__reference_binds_to_temporary)
return !__reference_binds_to_temporary(_Hp, _Tp); return !__reference_binds_to_temporary(_Hp, _Tp);
#else
return true;
#endif #endif
} }
__tuple_leaf& operator=(const __tuple_leaf&); __tuple_leaf& operator=(const __tuple_leaf&);
public: public:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf()
_NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) : __value_() _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) : __value_()
{static_assert(!is_reference<_Hp>::value, {static_assert(!is_reference<_Hp>::value,
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