[libcxx] Add std::any

[EricWF]

Summary

This patch adds std::any by moving/adapting <experimental/any>.

This patch also implements the std::any parts of p0032r3 (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0032r3.pdf)
and LWG 2509 (http://cplusplus.github.io/LWG/lwg-defects.html#2509).

I plan to push it in a day or two if there are no comments.

[EricWF]

Finishing touches.

include/any

+// -*- C++ -*-
+//===------------------------------ any -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_ANY
+#define _LIBCPP_ANY
+
+/*
+   any synopsis
+
+namespace std {
+
+  class bad_any_cast : public bad_cast
+  {
+  public:
+    virtual const char* what() const noexcept;
+  };
+
+  class any
+  {
+  public:
+
+    // 6.3.1 any construct/destruct
+    any() noexcept;
+
+    any(const any& other);
+    any(any&& other) noexcept;
+
+    template <class ValueType>
+      any(ValueType&& value);
+
+    ~any();
+
+    // 6.3.2 any assignments
+    any& operator=(const any& rhs);
+    any& operator=(any&& rhs) noexcept;
+
+    template <class ValueType>
+      any& operator=(ValueType&& rhs);
+
+    // 6.3.3 any modifiers
+    void reset() noexcept;
+    void swap(any& rhs) noexcept;
+
+    // 6.3.4 any observers
+    bool has_value() const noexcept;
+    const type_info& type() const noexcept;
+  };
+
+   // 6.4 Non-member functions
+  void swap(any& x, any& y) noexcept;
+
+  template <class T, class ...Args>
+    any make_any(Args&& ...args);
+  template <class T, class U, class ...Args>
+    any make_any(initializer_list<U>, Args&& ...args);
+
+  template<class ValueType>
+    ValueType any_cast(const any& operand);
+  template<class ValueType>
+    ValueType any_cast(any& operand);
+  template<class ValueType>
+    ValueType any_cast(any&& operand);
+
+  template<class ValueType>
+    const ValueType* any_cast(const any* operand) noexcept;
+  template<class ValueType>
+    ValueType* any_cast(any* operand) noexcept;
+
+} // namespace fundamentals_v1
+} // namespace experimental
+} // namespace std
+
+*/
+
+#include <experimental/__config>
+#include <memory>
+#include <new>
+#include <typeinfo>
+#include <type_traits>
+#include <cstdlib>
+#include <cassert>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+namespace std {
+class _LIBCPP_EXCEPTION_ABI bad_any_cast : public bad_cast
+{
+public:
+    virtual const char* what() const _NOEXCEPT;
+};
+} // namespace std
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+#if _LIBCPP_STD_VER > 14
+
+// Forward declarations
+class _LIBCPP_TYPE_VIS_ONLY any;
+
+template <class _ValueType>
+_LIBCPP_INLINE_VISIBILITY
+add_pointer_t<add_const_t<_ValueType>>
+any_cast(any const *) _NOEXCEPT;
+
+template <class _ValueType>
+_LIBCPP_INLINE_VISIBILITY
+add_pointer_t<_ValueType> any_cast(any *) _NOEXCEPT;
+
+namespace __any_imp
+{
+  using _Buffer = aligned_storage_t<3*sizeof(void*), alignment_of<void*>::value>;
+
+  template <class _Tp>
+  using _IsSmallObject = integral_constant<bool
+        , sizeof(_Tp) <= sizeof(_Buffer)
+          && alignment_of<_Buffer>::value
+             % alignment_of<_Tp>::value == 0
+          && is_nothrow_move_constructible<_Tp>::value
+        >;
+
+  enum class _Action {
+    _Destroy,
+    _Copy,
+    _Move,
+    _Get,
+    _TypeInfo
+  };
+
+  template <class _Tp> struct _SmallHandler;
+  template <class _Tp> struct _LargeHandler;
+
+  template <class _Tp>
+  struct  _LIBCPP_TYPE_VIS_ONLY __unique_typeinfo { static constexpr int __id = 0; };
+  template <class _Tp> constexpr int __unique_typeinfo<_Tp>::__id;
+
+  template <class _Tp>
+  inline _LIBCPP_INLINE_VISIBILITY
+  constexpr const void* __get_fallback_typeid() {
+      return &__unique_typeinfo<decay_t<_Tp>>::__id;
+  }
+
+  template <class _Tp>
+  inline _LIBCPP_INLINE_VISIBILITY
+  bool __compare_typeid(type_info const* __id, const void* __fallback_id)
+  {
+#if !defined(_LIBCPP_NO_RTTI)
+      if (__id && *__id == typeid(_Tp))
+          return true;
+#endif
+      if (!__id && __fallback_id == __any_imp::__get_fallback_typeid<_Tp>())
+          return true;
+      return false;
+  }
+
+  template <class _Tp>
+  using _Handler = conditional_t<
+    _IsSmallObject<_Tp>::value, _SmallHandler<_Tp>, _LargeHandler<_Tp>>;
+
+} // namespace __any_imp
+
+class _LIBCPP_TYPE_VIS_ONLY any
+{
+public:
+  // construct/destruct
+  _LIBCPP_INLINE_VISIBILITY
+  constexpr any() _NOEXCEPT : __h(nullptr) {}
+
+  _LIBCPP_INLINE_VISIBILITY
+  any(any const & __other) : __h(nullptr)
+  {
+    if (__other.__h) __other.__call(_Action::_Copy, this);
+  }
+
+  _LIBCPP_INLINE_VISIBILITY
+  any(any && __other) _NOEXCEPT : __h(nullptr)
+  {
+    if (__other.__h) __other.__call(_Action::_Move, this);
+  }
+
+  template <
+      class _ValueType
+    , class = enable_if_t<
+        !is_same<decay_t<_ValueType>, any>::value &&
+        !__is_inplace_type<_ValueType>::value &&
+        is_copy_constructible<_ValueType>::value>
+    >
+  _LIBCPP_INLINE_VISIBILITY
+  any(_ValueType && __value);
+
+  template <class _Tp, class ..._Args,
+    class = enable_if_t<
+        is_constructible<_Tp, _Args...>::value &&
+        is_copy_constructible<_Tp>::value
+    >
+  >
+  _LIBCPP_INLINE_VISIBILITY
+  explicit any(in_place_type_t<_Tp>, _Args&&... __args);
+
+  template <class _Tp, class _Up, class ..._Args,
+    class = enable_if_t<
+        is_constructible<_Tp, initializer_list<_Up>&, _Args...>::value &&
+        is_copy_constructible<_Tp>::value>
+  >
+  _LIBCPP_INLINE_VISIBILITY
+  explicit any(in_place_type_t<_Tp>, initializer_list<_Up>, _Args&&... __args);
+
+  _LIBCPP_INLINE_VISIBILITY
+  ~any() { this->reset(); }
+
+  // assignments
+  _LIBCPP_INLINE_VISIBILITY
+  any & operator=(any const & __rhs) {
+    any(__rhs).swap(*this);
+    return *this;
+  }
+
+  _LIBCPP_INLINE_VISIBILITY
+  any & operator=(any && __rhs) _NOEXCEPT {
+    any(_VSTD::move(__rhs)).swap(*this);
+    return *this;
+  }
+
+  // TODO: Should this be constrained to disallow in_place types like the
+  // ValueType constructor?
+  template <
+      class _ValueType
+    , class = enable_if_t<
+          !is_same<decay_t<_ValueType>, any>::value
+          && is_copy_constructible<_ValueType>::value
+          && !__is_inplace_type<_ValueType>::value>
+    >
+  _LIBCPP_INLINE_VISIBILITY
+  any & operator=(_ValueType && __rhs);
+
+  template <class _Tp, class ..._Args,
+    class = enable_if_t<
+        is_constructible<_Tp, _Args...>::value &&
+        is_copy_constructible<_Tp>::value>
+    >
+  _LIBCPP_INLINE_VISIBILITY
+  void emplace(_Args&&... args);
+
+  template <class _Tp, class _Up, class ..._Args,
+    class = enable_if_t<
+        is_constructible<_Tp, initializer_list<_Up>&, _Args...>::value &&
+        is_copy_constructible<_Tp>::value>
+  >
+  _LIBCPP_INLINE_VISIBILITY
+  void emplace(initializer_list<_Up>, _Args&&...);
+
+  // 6.3.3 any modifiers
+  _LIBCPP_INLINE_VISIBILITY
+  void reset() _NOEXCEPT { if (__h) this->__call(_Action::_Destroy); }
+
+  _LIBCPP_INLINE_VISIBILITY
+  void swap(any & __rhs) _NOEXCEPT;
+
+  // 6.3.4 any observers
+  _LIBCPP_INLINE_VISIBILITY
+  bool has_value() const _NOEXCEPT { return __h != nullptr; }
+
+#if !defined(_LIBCPP_NO_RTTI)
+  _LIBCPP_INLINE_VISIBILITY
+  const type_info & type() const _NOEXCEPT {
+    if (__h) {
+        return *static_cast<type_info const *>(this->__call(_Action::_TypeInfo));
+    } else {
+        return typeid(void);
+    }
+  }
+#endif
+
+private:
+    typedef __any_imp::_Action _Action;
+    using _HandleFuncPtr =  void* (*)(_Action, any const *, any *, const type_info *,
+      const void* __fallback_info);
+
+    union _Storage {
+        constexpr _Storage() : __ptr(nullptr) {}
+        void *  __ptr;
+        __any_imp::_Buffer __buf;
+    };
+
+    _LIBCPP_ALWAYS_INLINE
+    void * __call(_Action __a, any * __other = nullptr,
+                  type_info const * __info = nullptr,
+                   const void* __fallback_info = nullptr) const
+    {
+        return __h(__a, this, __other, __info, __fallback_info);
+    }
+
+    _LIBCPP_ALWAYS_INLINE
+    void * __call(_Action __a, any * __other = nullptr,
+                  type_info const * __info = nullptr,
+                  const void* __fallback_info = nullptr)
+    {
+        return __h(__a, this, __other, __info, __fallback_info);
+    }
+
+    template <class>
+    friend struct __any_imp::_SmallHandler;
+    template <class>
+    friend struct __any_imp::_LargeHandler;
+
+    template <class _ValueType>
+    friend add_pointer_t<add_const_t<_ValueType>>
+    any_cast(any const *) _NOEXCEPT;
+
+    template <class _ValueType>
+    friend add_pointer_t<_ValueType>
+    any_cast(any *) _NOEXCEPT;
+
+    _HandleFuncPtr __h = nullptr;
+    _Storage __s;
+};
+
+namespace __any_imp
+{
+  template <class _Tp>
+  struct _LIBCPP_TYPE_VIS_ONLY _SmallHandler
+  {
+     _LIBCPP_INLINE_VISIBILITY
+     static void* __handle(_Action __act, any const * __this, any * __other,
+                           type_info const * __info, const void* __fallback_info)
+     {
+        switch (__act)
+        {
+        case _Action::_Destroy:
+          __destroy(const_cast<any &>(*__this));
+          return nullptr;
+        case _Action::_Copy:
+            __copy(*__this, *__other);
+            return nullptr;
+        case _Action::_Move:
+          __move(const_cast<any &>(*__this), *__other);
+          return nullptr;
+        case _Action::_Get:
+            return __get(const_cast<any &>(*__this), __info, __fallback_info);
+        case _Action::_TypeInfo:
+          return __type_info();
+        }
+    }
+
+    template <class ..._Args>
+    _LIBCPP_INLINE_VISIBILITY
+    static void __create(any & __dest, _Args&&... __args) {
+        ::new (static_cast<void*>(&__dest.__s.__buf)) _Tp(_VSTD::forward<_Args>(__args)...);
+        __dest.__h = &_SmallHandler::__handle;
+    }
+
+  private:
+    _LIBCPP_INLINE_VISIBILITY
+    static void __destroy(any & __this) {
+        _Tp & __value = *static_cast<_Tp *>(static_cast<void*>(&__this.__s.__buf));
+        __value.~_Tp();
+        __this.__h = nullptr;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void __copy(any const & __this, any & __dest) {
+        _SmallHandler::__create(__dest, *static_cast<_Tp const *>(
+            static_cast<void const *>(&__this.__s.__buf)));
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void __move(any & __this, any & __dest) {
+        _SmallHandler::__create(__dest, _VSTD::move(
+            *static_cast<_Tp*>(static_cast<void*>(&__this.__s.__buf))));
+        __destroy(__this);
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void* __get(any & __this,
+                       type_info const * __info,
+                       const void* __fallback_id)
+    {
+        if (__any_imp::__compare_typeid<_Tp>(__info, __fallback_id))
+            return static_cast<void*>(&__this.__s.__buf);
+        return nullptr;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void* __type_info()
+    {
+#if !defined(_LIBCPP_NO_RTTI)
+        return const_cast<void*>(static_cast<void const *>(&typeid(_Tp)));
+#else
+        return nullptr;
+#endif
+    }
+  };
+
+  template <class _Tp>
+  struct _LIBCPP_TYPE_VIS_ONLY _LargeHandler
+  {
+    _LIBCPP_INLINE_VISIBILITY
+    static void* __handle(_Action __act, any const * __this,
+                          any * __other, type_info const * __info,
+                          void const* __fallback_info)
+    {
+        switch (__act)
+        {
+        case _Action::_Destroy:
+          __destroy(const_cast<any &>(*__this));
+          return nullptr;
+        case _Action::_Copy:
+          __copy(*__this, *__other);
+          return nullptr;
+        case _Action::_Move:
+          __move(const_cast<any &>(*__this), *__other);
+          return nullptr;
+        case _Action::_Get:
+            return __get(const_cast<any &>(*__this), __info, __fallback_info);
+        case _Action::_TypeInfo:
+          return __type_info();
+        }
+    }
+
+    template <class ..._Args>
+    _LIBCPP_INLINE_VISIBILITY
+    static void __create(any & __dest, _Args&&... __args) {
+        typedef allocator<_Tp> _Alloc;
+        typedef __allocator_destructor<_Alloc> _Dp;
+        _Alloc __a;
+        unique_ptr<_Tp, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
+        ::new ((void*)__hold.get()) _Tp(_VSTD::forward<_Args>(__args)...);
+        __dest.__s.__ptr = __hold.release();
+        __dest.__h = &_LargeHandler::__handle;
+    }
+
+  private:
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void __destroy(any & __this){
+        delete static_cast<_Tp*>(__this.__s.__ptr);
+        __this.__h = nullptr;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void __copy(any const & __this, any & __dest) {
+        _LargeHandler::__create(__dest, *static_cast<_Tp const *>(__this.__s.__ptr));
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void __move(any & __this, any & __dest) {
+      __dest.__s.__ptr = __this.__s.__ptr;
+      __dest.__h = &_LargeHandler::__handle;
+      __this.__h = nullptr;
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void* __get(any & __this, type_info const * __info,
+                       void const* __fallback_info)
+    {
+        if (__any_imp::__compare_typeid<_Tp>(__info, __fallback_info))
+            return static_cast<void*>(__this.__s.__ptr);
+        return nullptr;
+
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    static void* __type_info()
+    {
+#if !defined(_LIBCPP_NO_RTTI)
+        return const_cast<void*>(static_cast<void const *>(&typeid(_Tp)));
+#else
+        return nullptr;
+#endif
+    }
+  };
+
+} // namespace __any_imp
+
+
+template <class _ValueType, class>
+any::any(_ValueType && __v) : __h(nullptr)
+{
+  typedef typename decay<_ValueType>::type _Tp;
+  static_assert(is_copy_constructible<_Tp>::value,
+                "_ValueType must be CopyConstructible.");
+  using _ForwardTp = conditional_t<
+      is_move_constructible<_Tp>::value, _ValueType, _ValueType&>;
+  typedef __any_imp::_Handler<_Tp> _HandlerType;
+  _HandlerType::__create(*this, _VSTD::forward<_ForwardTp>(__v));
+}
+
+template <class _Tp, class ..._Args, class>
+any::any(in_place_type_t<_Tp>, _Args&&... __args) {
+  using _Hp = __any_imp::_Handler<_Tp>;
+  _Hp::__create(*this, _VSTD::forward<_Args>(__args)...);
+};
+
+template <class _Tp, class _Up, class ..._Args, class>
+any::any(in_place_type_t<_Tp>, initializer_list<_Up> __il, _Args&&... __args) {
+  using _Hp = __any_imp::_Handler<_Tp>;
+  _Hp::__create(*this, __il, _VSTD::forward<_Args>(__args)...);
+}
+
+template <class _ValueType, class>
+inline _LIBCPP_INLINE_VISIBILITY
+any & any::operator=(_ValueType && __v)
+{
+  typedef typename decay<_ValueType>::type _Tp;
+  static_assert(is_copy_constructible<_Tp>::value,
+                "_ValueType must be CopyConstructible.");
+  any(_VSTD::forward<_ValueType>(__v)).swap(*this);
+  return *this;
+}
+
+template <class _Tp, class ..._Args, class>
+inline _LIBCPP_INLINE_VISIBILITY
+void any::emplace(_Args&&... __args) {
+  using _Hp = __any_imp::_Handler<_Tp>;
+  reset();
+  _Hp::__create(*this, _VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Tp, class _Up, class ..._Args, class>
+inline _LIBCPP_INLINE_VISIBILITY
+void any::emplace(initializer_list<_Up> __il, _Args&&... __args) {
+  using _Hp = __any_imp::_Handler<_Tp>;
+  reset();
+  _Hp::__create(*this, __il, _VSTD::forward<_Args>(__args)...);
+}
+
+inline _LIBCPP_INLINE_VISIBILITY
+void any::swap(any & __rhs) _NOEXCEPT
+{
+    if (__h && __rhs.__h) {
+        any __tmp;
+        __rhs.__call(_Action::_Move, &__tmp);
+        this->__call(_Action::_Move, &__rhs);
+        __tmp.__call(_Action::_Move, this);
+    }
+    else if (__h) {
+        this->__call(_Action::_Move, &__rhs);
+    }
+    else if (__rhs.__h) {
+        __rhs.__call(_Action::_Move, this);
+    }
+}
+
+// 6.4 Non-member functions
+
+inline _LIBCPP_INLINE_VISIBILITY
+void swap(any & __lhs, any & __rhs) _NOEXCEPT
+{
+    __lhs.swap(__rhs);
+}
+
+template <class _Tp, class ..._Args>
+inline _LIBCPP_INLINE_VISIBILITY
+any make_any(_Args&&... __args) {
+    return any(in_place<_Tp>, _VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Tp, class _Up, class ..._Args>
+inline _LIBCPP_INLINE_VISIBILITY
+any make_any(initializer_list<_Up> __il, _Args&&... __args) {
+    return any(in_place<_Tp>, __il, _VSTD::forward<_Args>(__args)...);
+}
+
+template <class _ValueType>
+inline _LIBCPP_INLINE_VISIBILITY
+_ValueType any_cast(any const & __v)
+{
+    static_assert(
+        is_reference<_ValueType>::value
+        || is_copy_constructible<_ValueType>::value,
+        "_ValueType is required to be a reference or a CopyConstructible type.");
+    using _Tp = add_const_t<remove_reference_t<_ValueType>>;
+    _Tp * __tmp = _VSTD::any_cast<_Tp>(&__v);
+    if (__tmp == nullptr)
+        __libcpp_throw(bad_any_cast());
+    return *__tmp;
+}
+
+template <class _ValueType>
+inline _LIBCPP_INLINE_VISIBILITY
+_ValueType any_cast(any & __v)
+{
+    static_assert(
+        is_reference<_ValueType>::value
+        || is_copy_constructible<_ValueType>::value,
+        "_ValueType is required to be a reference or a CopyConstructible type.");
+    typedef typename remove_reference<_ValueType>::type _Tp;
+    _Tp * __tmp = _VSTD::any_cast<_Tp>(&__v);
+    if (__tmp == nullptr)
+        __libcpp_throw(bad_any_cast());
+    return *__tmp;
+}
+
+template <class _ValueType>
+inline _LIBCPP_INLINE_VISIBILITY
+_ValueType any_cast(any && __v)
+{
+    static_assert(
+        is_reference<_ValueType>::value
+        || is_copy_constructible<_ValueType>::value,
+        "_ValueType is required to be a reference or a CopyConstructible type.");
+    typedef typename remove_reference<_ValueType>::type _Tp;
+    using _ForwardTp = conditional_t<
+        is_reference<_ValueType>::value,
+        _ValueType,
+        conditional_t<is_move_constructible<_Tp>::value, _Tp, _Tp&>
+    >;
+    _Tp * __tmp = _VSTD::any_cast<_Tp>(&__v);
+    if (__tmp == nullptr)
+        __libcpp_throw(bad_any_cast());
+    return _VSTD::forward<_ForwardTp>(*__tmp);
+}
+
+template <class _ValueType>
+inline _LIBCPP_INLINE_VISIBILITY
+add_pointer_t<add_const_t<_ValueType>>
+any_cast(any const * __any) _NOEXCEPT
+{
+    static_assert(!is_reference<_ValueType>::value,
+                  "_ValueType may not be a reference.");
+    return _VSTD::any_cast<_ValueType>(const_cast<any *>(__any));
+}
+
+template <class _ValueType>
+add_pointer_t<_ValueType>
+any_cast(any * __any) _NOEXCEPT
+{
+    using __any_imp::_Action;
+    static_assert(!is_reference<_ValueType>::value,
+                  "_ValueType may not be a reference.");
+    typedef typename add_pointer<_ValueType>::type _ReturnType;
+    if (__any && __any->__h) {
+        return static_cast<_ReturnType>(
+            __any->__call(_Action::_Get, nullptr,
+#if !defined(_LIBCPP_NO_RTTI)
+                          &typeid(_ValueType),
+#else
+                          nullptr,
+#endif
+                          __any_imp::__get_fallback_typeid<_ValueType>()
+        ));
+    }
+    return nullptr;
+}
+
+#endif // _LIBCPP_STD_VER > 14
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_ANY

src/any.cpp

 //===---------------------------- any.cpp ---------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is dual licensed under the MIT and the University of Illinois Open
 // Source Licenses. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
+#include "any"
 #include "experimental/any"
 
-_LIBCPP_BEGIN_NAMESPACE_LFTS
-
+namespace std {
 const char* bad_any_cast::what() const _NOEXCEPT {
     return "bad any cast";
 }
+}
 
+_LIBCPP_BEGIN_NAMESPACE_LFTS
+const char* bad_any_cast::what() const _NOEXCEPT {
+    return "bad any cast";
+}
 _LIBCPP_END_NAMESPACE_LFTS

test/libcxx/experimental/any/small_type.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is dual licensed under the MIT and the University of Illinois Open
 // Source Licenses. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
 
 // <experimental/any>
 
 // Check that the size and alignment of any are what we expect.
 
 #include <experimental/any>
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 constexpr std::size_t BufferSize = (sizeof(void*) * 3);
 constexpr std::size_t BufferAlignment = alignof(void*);
 // Clang doesn't like "alignof(BufferAlignment * 2)" due to PR13986.
 // So we create "DoubleBufferAlignment" instead.
 constexpr std::size_t DoubleBufferAlignment = BufferAlignment * 2;
 
 class SmallThrowsDtor

test/libcxx/utilities/any/size_and_alignment.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11
+
+// <any>
+
+// Check that the size and alignment of any are what we expect.
+
+#include <any>
+
+int main()
+{
+    using std::any;
+    static_assert(sizeof(any) == sizeof(void*)*4, "");
+    static_assert(alignof(any) == alignof(void*), "");
+}

test/libcxx/utilities/any/small_type.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11
+
+// <any>
+
+// Check that the size and alignment of any are what we expect.
+
+#include <any>
+#include "any_helpers.h"
+
+constexpr std::size_t BufferSize = (sizeof(void*) * 3);
+constexpr std::size_t BufferAlignment = alignof(void*);
+// Clang doesn't like "alignof(BufferAlignment * 2)" due to PR13986.
+// So we create "DoubleBufferAlignment" instead.
+constexpr std::size_t DoubleBufferAlignment = BufferAlignment * 2;
+
+class SmallThrowsDtor
+{
+public:
+    SmallThrowsDtor() {}
+    SmallThrowsDtor(SmallThrowsDtor const &) noexcept {}
+    SmallThrowsDtor(SmallThrowsDtor &&) noexcept {}
+    ~SmallThrowsDtor() noexcept(false) {}
+};
+
+
+struct alignas(1) MaxSizeType {
+    char buff[BufferSize];
+};
+
+struct alignas(BufferAlignment) MaxAlignType {
+};
+
+struct alignas(BufferAlignment) MaxSizeAndAlignType {
+    char buff[BufferSize];
+};
+
+
+struct alignas(1) OverSizeType {
+    char buff[BufferSize + 1];
+};
+
+struct alignas(DoubleBufferAlignment) OverAlignedType {
+};
+
+struct alignas(DoubleBufferAlignment) OverSizeAndAlignedType {
+    char buff[BufferSize + 1];
+};
+
+int main()
+{
+    using std::any;
+    using std::__any_imp::_IsSmallObject;
+    static_assert(_IsSmallObject<small>::value, "");
+    static_assert(_IsSmallObject<void*>::value, "");
+    static_assert(!_IsSmallObject<SmallThrowsDtor>::value, "");
+    static_assert(!_IsSmallObject<large>::value, "");
+    {
+        // Check a type that meets the size requirement *exactly* and has
+        // a lesser alignment requirement is considered small.
+        typedef MaxSizeType T;
+        static_assert(sizeof(T) == BufferSize, "");
+        static_assert(alignof(T) < BufferAlignment,   "");
+        static_assert(_IsSmallObject<T>::value, "");
+    }
+    {
+        // Check a type that meets the alignment requirement *exactly* and has
+        // a lesser size is considered small.
+        typedef MaxAlignType T;
+        static_assert(sizeof(T) < BufferSize, "");
+        static_assert(alignof(T) == BufferAlignment,   "");
+        static_assert(_IsSmallObject<T>::value, "");
+    }
+    {
+        // Check a type that meets the size and alignment requirements *exactly*
+        // is considered small.
+        typedef MaxSizeAndAlignType T;
+        static_assert(sizeof(T) == BufferSize, "");
+        static_assert(alignof(T) == BufferAlignment,   "");
+        static_assert(_IsSmallObject<T>::value, "");
+    }
+    {
+        // Check a type that meets the alignment requirements but is over-sized
+        // is not considered small.
+        typedef OverSizeType T;
+        static_assert(sizeof(T) > BufferSize, "");
+        static_assert(alignof(T) < BufferAlignment, "");
+        static_assert(!_IsSmallObject<T>::value, "");
+    }
+    {
+        // Check a type that meets the size requirements but is over-aligned
+        // is not considered small.
+        typedef OverAlignedType T;
+        static_assert(sizeof(T) < BufferSize, "");
+        static_assert(alignof(T) > BufferAlignment, "");
+        static_assert(!_IsSmallObject<T>::value, "");
+    }
+    {
+        // Check a type that exceeds both the size an alignment requirements
+        // is not considered small.
+        typedef OverSizeAndAlignedType T;
+        static_assert(sizeof(T) > BufferSize, "");
+        static_assert(alignof(T) > BufferAlignment, "");
+        static_assert(!_IsSmallObject<T>::value, "");
+    }
+}

test/libcxx/utilities/any/version.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <any>
+
+#include <any>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}

test/std/experimental/any/any.class/any.assign/copy.pass.cpp

 
 // any& operator=(any const &);
 
 // Test copy assignment
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class LHS, class RHS>
 void test_copy_assign() {

test/std/experimental/any/any.class/any.assign/move.pass.cpp

 
 // any& operator=(any &&);
 
 // Test move assignment.
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class LHS, class RHS>
 void test_move_assign() {
     assert(LHS::count == 0);

test/std/experimental/any/any.class/any.assign/value.pass.cpp

 
 // any& operator=(any const &);
 
 // Test value copy and move assignment.
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class LHS, class RHS>
 void test_assign_value() {
int main() {
     test_assign_value<small, large>();
     test_assign_value<large, small>();
     test_assign_value_empty<small>();
     test_assign_value_empty<large>();
     test_assign_throws<small_throws_on_copy>();
     test_assign_throws<large_throws_on_copy>();
     test_assign_throws<throws_on_move, /* Move = */ true>();
 }
 No newline at end of file

test/std/experimental/any/any.class/any.cons/copy.pass.cpp

 
 // <experimental/any>
 
 // any(any const &);
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class Type>
 void test_copy_throws() {

test/std/experimental/any/any.class/any.cons/default.pass.cpp

 // <experimental/any>
 
 // any() noexcept;
 
 #include <experimental/any>
 #include <type_traits>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 
 
 int main()
 {
     using std::experimental::any;
     {
         static_assert(

test/std/experimental/any/any.class/any.cons/move.pass.cpp

 
 // any(any &&) noexcept;
 
 #include <experimental/any>
 #include <utility>
 #include <type_traits>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 // Moves are always noexcept. The throws_on_move object
 // must be stored dynamically so the pointer is moved and

test/std/experimental/any/any.class/any.cons/value.pass.cpp

 // ---------
 // 1. The value is properly move/copied depending on the value category.
 // 2. Both small and large values are properly handled.
 
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class Type>
 void test_copy_value_throws()

 
 int main() {
     test_copy_move_value<small>();
     test_copy_move_value<large>();
     test_copy_value_throws<small_throws_on_copy>();
     test_copy_value_throws<large_throws_on_copy>();
     test_move_value_throws();
 }
 No newline at end of file

test/std/experimental/any/any.class/any.modifiers/clear.pass.cpp

 
 // <experimental/any>
 
 // any::clear() noexcept
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 int main()
 {
     using std::experimental::any;
     using std::experimental::any_cast;
     // empty
     {
         any a;

test/std/experimental/any/any.class/any.modifiers/swap.pass.cpp

 
 // any::swap(any &) noexcept
 
 // Test swap(large, small) and swap(small, large)
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 template <class LHS, class RHS>
 void test_swap() {
     assert(LHS::count == 0);
     assert(RHS::count == 0);

test/std/experimental/any/any.class/any.observers/empty.pass.cpp

 
 // <experimental/any>
 
 // any::empty() noexcept
 
 #include <experimental/any>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 int main()
 {
     using std::experimental::any;
     // noexcept test
     {
         any a;
         static_assert(noexcept(a.empty()), "any::empty() must be noexcept");

test/std/experimental/any/any.class/any.observers/type.pass.cpp

 // XFAIL: libcpp-no-rtti
 
 // <experimental/any>
 
 // any::type() noexcept
 
 #include <experimental/any>
 #include <cassert>
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 int main()
 {
     using std::experimental::any;
     {
         any const a;
         assert(a.type() == typeid(void));
         static_assert(noexcept(a.type()), "any::type() must be noexcept");

test/std/experimental/any/any.nonmembers/any.cast/any_cast_pointer.pass.cpp

 //
 // template <class ValueType>
 // ValueType * any_cast(any *) noexcept;
 
 #include <experimental/any>
 #include <type_traits>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 
 // Test that the operators are properly noexcept.
 void test_cast_is_noexcept() {
     any a;
     static_assert(noexcept(any_cast<int>(&a)), "");

test/std/experimental/any/any.nonmembers/any.cast/any_cast_reference.pass.cpp

 //
 // template <class ValueType>
 // ValueType any_cast(any &&);
 
 #include <experimental/any>
 #include <type_traits>
 #include <cassert>
 
-#include "any_helpers.h"
+#include "experimental_any_helpers.h"
 #include "count_new.hpp"
 #include "test_macros.h"
 
 using std::experimental::any;
 using std::experimental::any_cast;
 using std::experimental::bad_any_cast;
 
 

test/std/utilities/any/any.class/any.assign/copy.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any& operator=(any const &);
+
+// Test copy assignment
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+template <class LHS, class RHS>
+void test_copy_assign() {
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    LHS::reset();
+    RHS::reset();
+    {
+        any lhs(LHS(1));
+        any const rhs(RHS(2));
+
+        assert(LHS::count == 1);
+        assert(RHS::count == 1);
+        assert(RHS::copied == 0);
+
+        lhs = rhs;
+
+        assert(RHS::copied == 1);
+        assert(LHS::count == 0);
+        assert(RHS::count == 2);
+
+        assertContains<RHS>(lhs, 2);
+        assertContains<RHS>(rhs, 2);
+    }
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+}
+
+template <class LHS>
+void test_copy_assign_empty() {
+    assert(LHS::count == 0);
+    LHS::reset();
+    {
+        any lhs;
+        any const rhs(LHS(42));
+
+        assert(LHS::count == 1);
+        assert(LHS::copied == 0);
+
+        lhs = rhs;
+
+        assert(LHS::copied == 1);
+        assert(LHS::count == 2);
+
+        assertContains<LHS>(lhs, 42);
+        assertContains<LHS>(rhs, 42);
+    }
+    assert(LHS::count == 0);
+    LHS::reset();
+    {
+        any lhs(LHS(1));
+        any const rhs;
+
+        assert(LHS::count == 1);
+        assert(LHS::copied == 0);
+
+        lhs = rhs;
+
+        assert(LHS::copied == 0);
+        assert(LHS::count == 0);
+
+        assertEmpty<LHS>(lhs);
+        assertEmpty(rhs);
+    }
+    assert(LHS::count == 0);
+}
+
+void test_copy_assign_self() {
+    // empty
+    {
+        any a;
+        a = a;
+        assertEmpty(a);
+        assert(globalMemCounter.checkOutstandingNewEq(0));
+    }
+    assert(globalMemCounter.checkOutstandingNewEq(0));
+    // small
+    {
+        any a((small(1)));
+        assert(small::count == 1);
+
+        a = a;
+
+        assert(small::count == 1);
+        assertContains<small>(a, 1);
+        assert(globalMemCounter.checkOutstandingNewEq(0));
+    }
+    assert(small::count == 0);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
+    // large
+    {
+        any a(large(1));
+        assert(large::count == 1);
+
+        a = a;
+
+        assert(large::count == 1);
+        assertContains<large>(a, 1);
+        assert(globalMemCounter.checkOutstandingNewEq(1));
+    }
+    assert(large::count == 0);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
+}
+
+template <class Tp>
+void test_copy_assign_throws()
+{
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    auto try_throw =
+    [](any& lhs, any const& rhs) {
+        try {
+            lhs = rhs;
+            assert(false);
+        } catch (my_any_exception const &) {
+            // do nothing
+        } catch (...) {
+            assert(false);
+        }
+    };
+    // const lvalue to empty
+    {
+        any lhs;
+        any const rhs((Tp(1)));
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(Tp::count == 1);
+        assertEmpty<Tp>(lhs);
+        assertContains<Tp>(rhs);
+    }
+    {
+        any lhs((small(2)));
+        any const rhs((Tp(1)));
+        assert(small::count == 1);
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(small::count == 1);
+        assert(Tp::count == 1);
+        assertContains<small>(lhs, 2);
+        assertContains<Tp>(rhs);
+    }
+    {
+        any lhs((large(2)));
+        any const rhs((Tp(1)));
+        assert(large::count == 1);
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(large::count == 1);
+        assert(Tp::count == 1);
+        assertContains<large>(lhs, 2);
+        assertContains<Tp>(rhs);
+    }
+#endif
+}
+
+int main() {
+    test_copy_assign<small1, small2>();
+    test_copy_assign<large1, large2>();
+    test_copy_assign<small, large>();
+    test_copy_assign<large, small>();
+    test_copy_assign_empty<small>();
+    test_copy_assign_empty<large>();
+    test_copy_assign_self();
+    test_copy_assign_throws<small_throws_on_copy>();
+    test_copy_assign_throws<large_throws_on_copy>();
+}

test/std/utilities/any/any.class/any.assign/move.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any& operator=(any &&);
+
+// Test move assignment.
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+template <class LHS, class RHS>
+void test_move_assign() {
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    {
+        LHS const s1(1);
+        any a(s1);
+        RHS const s2(2);
+        any a2(s2);
+
+        assert(LHS::count == 2);
+        assert(RHS::count == 2);
+
+        a = std::move(a2);
+
+        assert(LHS::count == 1);
+        assert(RHS::count == 2);
+
+        assertContains<RHS>(a, 2);
+        assertEmpty<RHS>(a2);
+    }
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+}
+
+template <class LHS>
+void test_move_assign_empty() {
+    assert(LHS::count == 0);
+    {
+        any a;
+        any  a2((LHS(1)));
+
+        assert(LHS::count == 1);
+
+        a = std::move(a2);
+
+        assert(LHS::count == 1);
+
+        assertContains<LHS>(a, 1);
+        assertEmpty<LHS>(a2);
+    }
+    assert(LHS::count == 0);
+    {
+        any a((LHS(1)));
+        any a2;
+
+        assert(LHS::count == 1);
+
+        a = std::move(a2);
+
+        assert(LHS::count == 0);
+
+        assertEmpty<LHS>(a);
+        assertEmpty(a2);
+    }
+    assert(LHS::count == 0);
+}
+
+void test_move_assign_noexcept() {
+    any a1;
+    any a2;
+    static_assert(
+        noexcept(a1 = std::move(a2))
+      , "any & operator=(any &&) must be noexcept"
+      );
+}
+
+int main() {
+    test_move_assign_noexcept();
+    test_move_assign<small1, small2>();
+    test_move_assign<large1, large2>();
+    test_move_assign<small, large>();
+    test_move_assign<large, small>();
+    test_move_assign_empty<small>();
+    test_move_assign_empty<large>();
+}

test/std/utilities/any/any.class/any.assign/value.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any& operator=(any const &);
+
+// Test value copy and move assignment.
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+template <class LHS, class RHS>
+void test_assign_value() {
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    LHS::reset();
+    RHS::reset();
+    {
+        any lhs(LHS(1));
+        any const rhs(RHS(2));
+
+        assert(LHS::count == 1);
+        assert(RHS::count == 1);
+        assert(RHS::copied == 0);
+
+        lhs = rhs;
+
+        assert(RHS::copied == 1);
+        assert(LHS::count == 0);
+        assert(RHS::count == 2);
+
+        assertContains<RHS>(lhs, 2);
+        assertContains<RHS>(rhs, 2);
+    }
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    LHS::reset();
+    RHS::reset();
+    {
+        any lhs(LHS(1));
+        any rhs(RHS(2));
+
+        assert(LHS::count == 1);
+        assert(RHS::count == 1);
+        assert(RHS::moved == 1);
+
+        lhs = std::move(rhs);
+
+        assert(RHS::moved >= 1);
+        assert(RHS::copied == 0);
+        assert(LHS::count == 0);
+        assert(RHS::count == 1);
+
+        assertContains<RHS>(lhs, 2);
+        assertEmpty<RHS>(rhs);
+    }
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+}
+
+template <class RHS>
+void test_assign_value_empty() {
+    assert(RHS::count == 0);
+    RHS::reset();
+    {
+        any lhs;
+        RHS rhs(42);
+        assert(RHS::count == 1);
+        assert(RHS::copied == 0);
+
+        lhs = rhs;
+
+        assert(RHS::count == 2);
+        assert(RHS::copied == 1);
+        assert(RHS::moved >= 0);
+        assertContains<RHS>(lhs, 42);
+    }
+    assert(RHS::count == 0);
+    RHS::reset();
+    {
+        any lhs;
+        RHS rhs(42);
+        assert(RHS::count == 1);
+        assert(RHS::moved == 0);
+
+        lhs = std::move(rhs);
+
+        assert(RHS::count == 2);
+        assert(RHS::copied == 0);
+        assert(RHS::moved >= 1);
+        assertContains<RHS>(lhs, 42);
+    }
+    assert(RHS::count == 0);
+    RHS::reset();
+}
+
+
+template <class Tp, bool Move = false>
+void test_assign_throws() {
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    auto try_throw=
+    [](any& lhs, auto&& rhs) {
+        try {
+            Move ? lhs = std::move(rhs)
+                 : lhs = rhs;
+            assert(false);
+        } catch (my_any_exception const &) {
+            // do nothing
+        } catch (...) {
+            assert(false);
+        }
+    };
+    // const lvalue to empty
+    {
+        any lhs;
+        Tp rhs(1);
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(Tp::count == 1);
+        assertEmpty<Tp>(lhs);
+    }
+    {
+        any lhs((small(2)));
+        Tp  rhs(1);
+        assert(small::count == 1);
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(small::count == 1);
+        assert(Tp::count == 1);
+        assertContains<small>(lhs, 2);
+    }
+    {
+        any lhs((large(2)));
+        Tp rhs(1);
+        assert(large::count == 1);
+        assert(Tp::count == 1);
+
+        try_throw(lhs, rhs);
+
+        assert(large::count == 1);
+        assert(Tp::count == 1);
+        assertContains<large>(lhs, 2);
+    }
+#endif
+}
+
+
+// Test that any& operator=(ValueType&&) is *never* selected for:
+// * std::in_place type.
+// * Non-copyable types
+void test_sfinae_constraints() {
+    {
+        using Tag = std::in_place_type_t<int>;
+        using RawTag = std::remove_reference_t<Tag>;
+        static_assert(!std::is_assignable<std::any, RawTag&&>::value, "");
+    }
+    {
+        struct Dummy { Dummy() = delete; };
+        using T = std::in_place_type_t<Dummy>;
+        static_assert(!std::is_assignable<std::any, T>::value, "");
+    }
+    {
+        // Test that the ValueType&& constructor SFINAE's away when the
+        // argument is non-copyable
+        struct NoCopy {
+          NoCopy() = default;
+          NoCopy(NoCopy const&) = delete;
+          NoCopy(NoCopy&&) = default;
+        };
+        static_assert(!std::is_assignable<std::any, NoCopy>::value, "");
+    }
+}
+
+int main() {
+    test_assign_value<small1, small2>();
+    test_assign_value<large1, large2>();
+    test_assign_value<small, large>();
+    test_assign_value<large, small>();
+    test_assign_value_empty<small>();
+    test_assign_value_empty<large>();
+    test_assign_throws<small_throws_on_copy>();
+    test_assign_throws<large_throws_on_copy>();
+    test_assign_throws<throws_on_move, /* Move = */ true>();
+    test_sfinae_constraints();
+}
 No newline at end of file

test/std/utilities/any/any.class/any.cons/copy.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any(any const &);
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+template <class Type>
+void test_copy_throws() {
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    assert(Type::count == 0);
+    {
+        any const a((Type(42)));
+        assert(Type::count == 1);
+        try {
+            any const a2(a);
+            assert(false);
+        } catch (my_any_exception const &) {
+            // do nothing
+        } catch (...) {
+            assert(false);
+        }
+        assert(Type::count == 1);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+#endif
+}
+
+void test_copy_empty() {
+    DisableAllocationGuard g; ((void)g); // No allocations should occur.
+    any a1;
+    any a2(a1);
+
+    assertEmpty(a1);
+    assertEmpty(a2);
+}
+
+template <class Type>
+void test_copy()
+{
+    // Copying small types should not perform any allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a((Type(42)));
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+
+        any a2(a);
+
+        assert(Type::copied == 1);
+        assert(Type::count == 2);
+        assertContains<Type>(a, 42);
+        assertContains<Type>(a, 42);
+
+        // Modify a and check that a2 is unchanged
+        modifyValue<Type>(a, -1);
+        assertContains<Type>(a, -1);
+        assertContains<Type>(a2, 42);
+
+        // modify a2 and check that a is unchanged
+        modifyValue<Type>(a2, 999);
+        assertContains<Type>(a, -1);
+        assertContains<Type>(a2, 999);
+
+        // clear a and check that a2 is unchanged
+        a.reset();
+        assertEmpty(a);
+        assertContains<Type>(a2, 999);
+    }
+    assert(Type::count == 0);
+}
+
+int main() {
+    test_copy<small>();
+    test_copy<large>();
+    test_copy_empty();
+    test_copy_throws<small_throws_on_copy>();
+    test_copy_throws<large_throws_on_copy>();
+}

test/std/utilities/any/any.class/any.cons/default.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any() noexcept;
+
+#include <any>
+#include <type_traits>
+#include <cassert>
+
+#include "test_macros.h"
+#include "any_helpers.h"
+#include "count_new.hpp"
+
+#if TEST_HAS_BUILTIN_IDENTIFIER(__has_constant_initializer)
+// std::any must have a constexpr default constructor, but it's a non-literal
+// type so we can't create a constexpr variable. This tests that we actually
+// get 'constant initialization'.
+std::any a;
+static_assert(__has_constant_initializer(a),
+              "any must be constant initializable");
+#endif
+
+int main()
+{
+    using std::any;
+    {
+        static_assert(
+            std::is_nothrow_default_constructible<any>::value
+          , "Must be default constructible"
+          );
+    }
+    {
+        DisableAllocationGuard g; ((void)g);
+        any const a;
+        assertEmpty(a);
+    }
+}

test/std/utilities/any/any.class/any.cons/in_place_type.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class T, class ...Args> any(in_place_type_t<T>, Args&&...);
+// template <class T, class U, class ...Args>
+// any(in_place_type_t<T>, initializer_list<U>, Args&&...);
+
+// Test construction from a value.
+// Concerns:
+// ---------
+// 1. The value is properly move/copied depending on the value category.
+// 2. Both small and large values are properly handled.
+
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+#include "test_convertible.hpp"
+
+using std::any;
+using std::any_cast;
+
+template <class Type>
+void test_in_place_type() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Type>);
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 0);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Type>, 101);
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 101);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Type>, -1, 42, -1);
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+}
+
+template <class Type>
+void test_in_place_type_tracked() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    {
+        any a(std::in_place<Type>);
+        assertArgsMatch<Type>(a);
+    }
+    {
+        any a(std::in_place<Type>, -1, 42, -1);
+        assertArgsMatch<Type, int, int, int>(a);
+    }
+    // initializer_list constructor tests
+    {
+        any a(std::in_place<Type>, {-1, 42, -1});
+        assertArgsMatch<Type, std::initializer_list<int>>(a);
+    }
+    {
+        int x = 42;
+        any a(std::in_place<Type>, {-1, 42, -1}, x);
+        assertArgsMatch<Type, std::initializer_list<int>, int&>(a);
+    }
+}
+
+void test_ctor_sfinae() {
+    {
+        // Test that the init-list ctor SFINAE's away properly when
+        // construction would be ill-formed.
+        using IL = std::initializer_list<int>;
+        static_assert(!std::is_constructible<std::any,
+                      std::in_place_type_t<int>, IL>::value, "");
+        static_assert(std::is_constructible<std::any,
+            std::in_place_type_t<small_tracked_t>, IL>::value, "");
+    }
+    {
+        // Test that the tagged dispatch constructor SFINAE's away when the
+        // argument is non-copyable
+        struct NoCopy {
+          NoCopy() = default;
+          NoCopy(NoCopy const&) = delete;
+          NoCopy(int) {}
+          NoCopy(std::initializer_list<int>, int) {}
+        };
+        using Tag = std::in_place_type_t<NoCopy>;
+        using IL = std::initializer_list<int>;
+        static_assert(!std::is_constructible<std::any, Tag>::value, "");
+        static_assert(!std::is_constructible<std::any, Tag, int>::value, "");
+        static_assert(!std::is_constructible<std::any, Tag, IL, int>::value, "");
+    }
+}
+
+struct Implicit {
+  Implicit(int) {}
+  Implicit(int, int, int) {}
+  Implicit(std::initializer_list<int>, int) {}
+};
+
+void test_constructor_explicit() {
+    using I = Implicit;
+    using IT = std::in_place_type_t<I>;
+    static_assert(!test_convertible<std::any, IT, int>(), "");
+    static_assert(std::is_constructible<std::any, IT, int>::value, "");
+    static_assert(!test_convertible<std::any, IT, int, int, int>(), "");
+    static_assert(std::is_constructible<std::any, IT, int, int, int>::value, "");
+    static_assert(!test_convertible<std::any, IT, std::initializer_list<int>&, int>(), "");
+    static_assert(std::is_constructible<std::any, IT, std::initializer_list<int>&, int>::value, "");
+}
+
+int main() {
+    test_in_place_type<small>();
+    test_in_place_type<large>();
+    test_in_place_type<small_throws_on_copy>();
+    test_in_place_type<large_throws_on_copy>();
+    test_in_place_type<throws_on_move>();
+    test_in_place_type_tracked<small_tracked_t>();
+    test_in_place_type_tracked<large_tracked_t>();
+    test_ctor_sfinae();
+    test_constructor_explicit();
+}
 No newline at end of file

test/std/utilities/any/any.class/any.cons/move.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any(any &&) noexcept;
+
+#include <any>
+#include <utility>
+#include <type_traits>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+// Moves are always noexcept. The throws_on_move object
+// must be stored dynamically so the pointer is moved and
+// not the stored object.
+void test_move_does_not_throw()
+{
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    assert(throws_on_move::count == 0);
+    {
+        throws_on_move v(42);
+        any a(v);
+        assert(throws_on_move::count == 2);
+        // No allocations should be performed after this point.
+        DisableAllocationGuard g; ((void)g);
+        try {
+            any const a2(std::move(a));
+            assertEmpty(a);
+            assertContains<throws_on_move>(a2, 42);
+        } catch (...) {
+            assert(false);
+        }
+        assert(throws_on_move::count == 1);
+        assertEmpty(a);
+    }
+    assert(throws_on_move::count == 0);
+#endif
+}
+
+void test_move_empty() {
+    DisableAllocationGuard g; ((void)g); // no allocations should be performed.
+
+    any a1;
+    any a2(std::move(a1));
+
+    assertEmpty(a1);
+    assertEmpty(a2);
+}
+
+template <class Type>
+void test_move() {
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a((Type(42)));
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+
+        // Moving should not perform allocations since it must be noexcept.
+        DisableAllocationGuard g; ((void)g);
+
+        any a2(std::move(a));
+
+        assert(Type::moved >= 1); // zero or more move operations can be performed.
+        assert(Type::copied == 0); // no copies can be performed.
+        assert(Type::count == 1);
+        assertEmpty(a); // Moves are always destructive.
+        assertContains<Type>(a2, 42);
+    }
+    assert(Type::count == 0);
+}
+
+int main()
+{
+    // noexcept test
+    {
+        static_assert(
+            std::is_nothrow_move_constructible<any>::value
+          , "any must be nothrow move constructible"
+          );
+    }
+    test_move<small>();
+    test_move<large>();
+    test_move_empty();
+    test_move_does_not_throw();
+}

test/std/utilities/any/any.class/any.cons/value.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class Value> any(Value &&)
+
+// Test construction from a value.
+// Concerns:
+// ---------
+// 1. The value is properly move/copied depending on the value category.
+// 2. Both small and large values are properly handled.
+
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+
+template <class Type>
+void test_copy_value_throws()
+{
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    assert(Type::count == 0);
+    {
+        Type const t(42);
+        assert(Type::count == 1);
+        try {
+            any const a2(t);
+            assert(false);
+        } catch (my_any_exception const &) {
+            // do nothing
+        } catch (...) {
+            assert(false);
+        }
+        assert(Type::count == 1);
+        assert(t.value == 42);
+    }
+    assert(Type::count == 0);
+#endif
+}
+
+void test_move_value_throws()
+{
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    assert(throws_on_move::count == 0);
+    {
+        throws_on_move v;
+        assert(throws_on_move::count == 1);
+        try {
+            any const a(std::move(v));
+            assert(false);
+        } catch (my_any_exception const &) {
+            // do nothing
+        } catch (...) {
+            assert(false);
+        }
+        assert(throws_on_move::count == 1);
+    }
+    assert(throws_on_move::count == 0);
+#endif
+}
+
+template <class Type>
+void test_copy_move_value() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        Type t(42);
+        assert(Type::count == 1);
+
+        any a(t);
+
+        assert(Type::count == 2);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        Type t(42);
+        assert(Type::count == 1);
+
+        any a(std::move(t));
+
+        assert(Type::count == 2);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+        assertContains<Type>(a, 42);
+    }
+}
+
+void test_non_moveable_type()
+{
+    using Type = deleted_move;
+    {
+        deleted_move mv(42);
+        std::any a(mv);
+        assert(Type::count == 2);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        deleted_move mv(42);
+        std::any a(std::move(mv));
+        assert(Type::count == 2);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+}
+
+
+
+// Test that any(ValueType&&) is *never* selected for a std::in_place type.
+void test_sfinae_constraints() {
+    using Tag = std::in_place_type_t<int>;
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wignored-qualifiers"
+#endif
+    static_assert(std::is_same<Tag, const Tag>::value, "");
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+    // Test that the tag type is properly handled in SFINAE
+    Tag t = std::in_place;
+    {
+        std::any a(t);
+        assertContains<int>(a, 0);
+    }
+    {
+        std::any a(std::move(t));
+        assertContains<int>(a, 0);
+    }
+    {
+        struct Dummy { Dummy() = delete; };
+        using T = std::in_place_type_t<Dummy>;
+        static_assert(!std::is_constructible<std::any, T>::value, "");
+    }
+    {
+        // Test that the ValueType&& constructor SFINAE's away when the
+        // argument is non-copyable
+        struct NoCopy {
+          NoCopy() = default;
+          NoCopy(NoCopy const&) = delete;
+          NoCopy(int) {}
+        };
+        static_assert(!std::is_constructible<std::any, NoCopy>::value, "");
+        static_assert(!std::is_convertible<NoCopy, std::any>::value, "");
+    }
+}
+
+int main() {
+    test_copy_move_value<small>();
+    test_copy_move_value<large>();
+    test_copy_value_throws<small_throws_on_copy>();
+    test_copy_value_throws<large_throws_on_copy>();
+    test_move_value_throws();
+    test_non_moveable_type();
+    test_sfinae_constraints();
+}
 No newline at end of file

test/std/utilities/any/any.class/any.modifiers/emplace.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class T, class ...Args> emplace(Args&&...);
+// template <class T, class U, class ...Args>
+// void emplace(initializer_list<U>, Args&&...);
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+struct Tracked {
+  static int count;
+  Tracked()  {++count;}
+  ~Tracked() { --count; }
+};
+int Tracked::count = 0;
+
+template <class Type>
+void test_emplace_type() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+
+        a.emplace<Type>();
+
+        assert(Tracked::count == 0);
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 0);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+
+        a.emplace<Type>(101);
+
+        assert(Tracked::count == 0);
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 101);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+
+        a.emplace<Type>(-1, 42, -1);
+
+        assert(Tracked::count == 0);
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+}
+
+template <class Type>
+void test_emplace_type_tracked() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+        a.emplace<Type>();
+        assert(Tracked::count == 0);
+        assertArgsMatch<Type>(a);
+    }
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+        a.emplace<Type>(-1, 42, -1);
+        assert(Tracked::count == 0);
+        assertArgsMatch<Type, int, int, int>(a);
+    }
+    // initializer_list constructor tests
+    {
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+        a.emplace<Type>({-1, 42, -1});
+        assert(Tracked::count == 0);
+        assertArgsMatch<Type, std::initializer_list<int>>(a);
+    }
+    {
+        int x = 42;
+        any a(std::in_place<Tracked>);
+        assert(Tracked::count == 1);
+        a.emplace<Type>({-1, 42, -1}, x);
+        assert(Tracked::count == 0);
+        assertArgsMatch<Type, std::initializer_list<int>, int&>(a);
+    }
+}
+
+#ifndef TEST_HAS_NO_EXCEPTIONS
+
+struct SmallThrows {
+  SmallThrows(int) { throw 42; }
+  SmallThrows(std::initializer_list<int>, int) { throw 42; }
+};
+static_assert(IsSmallObject<SmallThrows>::value, "");
+
+struct LargeThrows {
+  LargeThrows(int) { throw 42; }
+  LargeThrows(std::initializer_list<int>, int) { throw 42; }
+  int data[10];
+};
+static_assert(!IsSmallObject<LargeThrows>::value, "");
+
+template <class Type>
+void test_emplace_throws()
+{
+    // any stores small type
+    {
+        std::any a(small{42});
+        assert(small::count == 1);
+        try {
+            a.emplace<Type>(101);
+            assert(false);
+        } catch (int const&) {
+        }
+        assert(small::count == 0);
+    }
+    {
+        std::any a(small{42});
+        assert(small::count == 1);
+        try {
+            a.emplace<Type>({1, 2, 3}, 101);
+            assert(false);
+        } catch (int const&) {
+        }
+        assert(small::count == 0);
+    }
+    // any stores large type
+    {
+        std::any a(large{42});
+        assert(large::count == 1);
+        try {
+            a.emplace<Type>(101);
+            assert(false);
+        } catch (int const&) {
+        }
+        assert(large::count == 0);
+    }
+    {
+        std::any a(large{42});
+        assert(large::count == 1);
+        try {
+            a.emplace<Type>({1, 2, 3}, 101);
+            assert(false);
+        } catch (int const&) {
+        }
+        assert(large::count == 0);
+    }
+}
+
+#endif
+
+template <class T, class ...Args>
+constexpr auto has_emplace(int)
+    -> decltype(std::any{}.emplace<T>(std::declval<Args>()...), true) { return true; }
+
+template <class ...Args>
+constexpr bool has_emplace(long) { return false; }
+
+template <class ...Args>
+constexpr bool has_emplace() { return has_emplace<Args...>(0); }
+
+
+template <class T, class IT, class ...Args>
+constexpr auto has_emplace_init_list(int)
+    -> decltype(std::any{}.emplace<T>(
+        {std::declval<IT>(), std::declval<IT>(), std::declval<IT>()},
+        std::declval<Args>()...), true) { return true; }
+
+template <class ...Args>
+constexpr bool has_emplace_init_list(long) { return false; }
+
+template <class ...Args>
+constexpr bool has_emplace_init_list() { return has_emplace_init_list<Args...>(0); }
+
+
+void test_emplace_sfinae_constraints() {
+    {
+        static_assert(has_emplace<int>(), "");
+        static_assert(has_emplace<int, int>(), "");
+        static_assert(!has_emplace<int, int, int>(), "not constructible");
+        static_assert(!has_emplace_init_list<int, int>(), "not constructible from il");
+    }
+    {
+        static_assert(has_emplace<small>(), "");
+        static_assert(has_emplace<large>(), "");
+        static_assert(!has_emplace<small, void*>(), "");
+        static_assert(!has_emplace<large, void*>(), "");
+
+        static_assert(has_emplace_init_list<small, int>(), "");
+        static_assert(has_emplace_init_list<large, int>(), "");
+        static_assert(!has_emplace_init_list<small, void*>(), "");
+        static_assert(!has_emplace_init_list<large, void*>(), "");
+    }
+    {
+        // Test that the emplace SFINAE's away when the
+        // argument is non-copyable
+        struct NoCopy {
+          NoCopy() = default;
+          NoCopy(NoCopy const&) = delete;
+          NoCopy(int) {}
+          NoCopy(std::initializer_list<int>, int, int) {}
+        };
+        static_assert(!has_emplace<NoCopy>(), "");
+        static_assert(!has_emplace<NoCopy, int>(), "");
+        static_assert(!has_emplace_init_list<NoCopy, int, int, int>(), "");
+    }
+}
+
+int main() {
+    test_emplace_type<small>();
+    test_emplace_type<large>();
+    test_emplace_type<small_throws_on_copy>();
+    test_emplace_type<large_throws_on_copy>();
+    test_emplace_type<throws_on_move>();
+    test_emplace_type_tracked<small_tracked_t>();
+    test_emplace_type_tracked<large_tracked_t>();
+    test_emplace_sfinae_constraints();
+#ifndef TEST_HAS_NO_EXCEPTIONS
+    test_emplace_throws<SmallThrows>();
+    test_emplace_throws<LargeThrows>();
+#endif
+}
 No newline at end of file

test/std/utilities/any/any.class/any.modifiers/reset.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any::reset() noexcept
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+
+int main()
+{
+    using std::any;
+    using std::any_cast;
+    // empty
+    {
+        any a;
+
+        // noexcept check
+        static_assert(
+            noexcept(a.reset())
+          , "any.reset() must be noexcept"
+          );
+
+        assertEmpty(a);
+
+        a.reset();
+
+        assertEmpty(a);
+    }
+    // small object
+    {
+        any a((small(1)));
+        assert(small::count == 1);
+        assertContains<small>(a, 1);
+
+        a.reset();
+
+        assertEmpty<small>(a);
+        assert(small::count == 0);
+    }
+    // large object
+    {
+        any a(large(1));
+        assert(large::count == 1);
+        assertContains<large>(a);
+
+        a.reset();
+
+        assertEmpty<large>(a);
+        assert(large::count == 0);
+    }
+}

test/std/utilities/any/any.class/any.modifiers/swap.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any::swap(any &) noexcept
+
+// Test swap(large, small) and swap(small, large)
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+
+using std::any;
+using std::any_cast;
+
+template <class LHS, class RHS>
+void test_swap() {
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    {
+        any a1((LHS(1)));
+        any a2(RHS{2});
+        assert(LHS::count == 1);
+        assert(RHS::count == 1);
+
+        a1.swap(a2);
+
+        assert(LHS::count == 1);
+        assert(RHS::count == 1);
+
+        assertContains<RHS>(a1, 2);
+        assertContains<LHS>(a2, 1);
+    }
+    assert(LHS::count == 0);
+    assert(RHS::count == 0);
+    assert(LHS::copied == 0);
+    assert(RHS::copied == 0);
+}
+
+template <class Tp>
+void test_swap_empty() {
+    assert(Tp::count == 0);
+    {
+        any a1((Tp(1)));
+        any a2;
+        assert(Tp::count == 1);
+
+        a1.swap(a2);
+
+        assert(Tp::count == 1);
+
+        assertContains<Tp>(a2, 1);
+        assertEmpty(a1);
+    }
+    assert(Tp::count == 0);
+    {
+        any a1((Tp(1)));
+        any a2;
+        assert(Tp::count == 1);
+
+        a2.swap(a1);
+
+        assert(Tp::count == 1);
+
+        assertContains<Tp>(a2, 1);
+        assertEmpty(a1);
+    }
+    assert(Tp::count == 0);
+    assert(Tp::copied == 0);
+}
+
+void test_noexcept()
+{
+    any a1;
+    any a2;
+    static_assert(
+        noexcept(a1.swap(a2))
+      , "any::swap(any&) must be noexcept"
+      );
+}
+
+int main()
+{
+    test_noexcept();
+    test_swap_empty<small>();
+    test_swap_empty<large>();
+    test_swap<small1, small2>();
+    test_swap<large1, large2>();
+    test_swap<small, large>();
+    test_swap<large, small>();
+}

test/std/utilities/any/any.class/any.observers/has_value.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// any::has_value() noexcept
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+
+int main()
+{
+    using std::any;
+    // noexcept test
+    {
+        any a;
+        static_assert(noexcept(a.has_value()), "any::has_value() must be noexcept");
+    }
+    // empty
+    {
+        any a;
+        assert(!a.has_value());
+
+        a.reset();
+        assert(!a.has_value());
+
+        a = 42;
+        assert(a.has_value());
+    }
+    // small object
+    {
+        small const s(1);
+        any a(s);
+        assert(a.has_value());
+
+        a.reset();
+        assert(!a.has_value());
+
+        a = s;
+        assert(a.has_value());
+    }
+    // large object
+    {
+        large const l(1);
+        any a(l);
+        assert(a.has_value());
+
+        a.reset();
+        assert(!a.has_value());
+
+        a = l;
+        assert(a.has_value());
+    }
+}

test/std/utilities/any/any.class/any.observers/type.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// XFAIL: libcpp-no-rtti
+
+// <any>
+
+// any::type() noexcept
+
+#include <any>
+#include <cassert>
+#include "any_helpers.h"
+
+int main()
+{
+    using std::any;
+    {
+        any const a;
+        assert(a.type() == typeid(void));
+        static_assert(noexcept(a.type()), "any::type() must be noexcept");
+    }
+    {
+        small const s(1);
+        any const a(s);
+        assert(a.type() == typeid(small));
+
+    }
+    {
+        large const l(1);
+        any const a(l);
+        assert(a.type() == typeid(large));
+    }
+}

test/std/utilities/any/any.class/not_literal_type.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// [Note any is a not a literal type --end note]
+
+#include <any>
+#include <type_traits>
+
+int main () {
+    static_assert(!std::is_literal_type<std::any>::value, "");
+}

test/std/utilities/any/any.nonmembers/any.cast/any_cast_pointer.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class ValueType>
+// ValueType const* any_cast(any const *) noexcept;
+//
+// template <class ValueType>
+// ValueType * any_cast(any *) noexcept;
+
+#include <any>
+#include <type_traits>
+#include <cassert>
+
+#include "any_helpers.h"
+
+using std::any;
+using std::any_cast;
+
+// Test that the operators are properly noexcept.
+void test_cast_is_noexcept() {
+    any a;
+    static_assert(noexcept(any_cast<int>(&a)), "");
+
+    any const& ca = a;
+    static_assert(noexcept(any_cast<int>(&ca)), "");
+}
+
+// Test that the return type of any_cast is correct.
+void test_cast_return_type() {
+    any a;
+    static_assert(std::is_same<decltype(any_cast<int>(&a)), int*>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const>(&a)), int const*>::value, "");
+
+    any const& ca = a;
+    static_assert(std::is_same<decltype(any_cast<int>(&ca)), int const*>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const>(&ca)), int const*>::value, "");
+}
+
+// Test that any_cast handles null pointers.
+void test_cast_nullptr() {
+    any* a = nullptr;
+    assert(nullptr == any_cast<int>(a));
+    assert(nullptr == any_cast<int const>(a));
+
+    any const* ca = nullptr;
+    assert(nullptr == any_cast<int>(ca));
+    assert(nullptr == any_cast<int const>(ca));
+}
+
+// Test casting an empty object.
+void test_cast_empty() {
+    {
+        any a;
+        assert(nullptr == any_cast<int>(&a));
+        assert(nullptr == any_cast<int const>(&a));
+
+        any const& ca = a;
+        assert(nullptr == any_cast<int>(&ca));
+        assert(nullptr == any_cast<int const>(&ca));
+    }
+    // Create as non-empty, then make empty and run test.
+    {
+        any a(42);
+        a.reset();
+        assert(nullptr == any_cast<int>(&a));
+        assert(nullptr == any_cast<int const>(&a));
+
+        any const& ca = a;
+        assert(nullptr == any_cast<int>(&ca));
+        assert(nullptr == any_cast<int const>(&ca));
+    }
+}
+
+template <class Type>
+void test_cast() {
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a((Type(42)));
+        any const& ca = a;
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+
+        // Try a cast to a bad type.
+        // NOTE: Type cannot be an int.
+        assert(any_cast<int>(&a) == nullptr);
+        assert(any_cast<int const>(&a) == nullptr);
+        assert(any_cast<int const volatile>(&a) == nullptr);
+
+        // Try a cast to the right type, but as a pointer.
+        assert(any_cast<Type*>(&a) == nullptr);
+        assert(any_cast<Type const*>(&a) == nullptr);
+
+        // Check getting a unqualified type from a non-const any.
+        Type* v = any_cast<Type>(&a);
+        assert(v != nullptr);
+        assert(v->value == 42);
+
+        // change the stored value and later check for the new value.
+        v->value = 999;
+
+        // Check getting a const qualified type from a non-const any.
+        Type const* cv = any_cast<Type const>(&a);
+        assert(cv != nullptr);
+        assert(cv == v);
+        assert(cv->value == 999);
+
+        // Check getting a unqualified type from a const any.
+        cv = any_cast<Type>(&ca);
+        assert(cv != nullptr);
+        assert(cv == v);
+        assert(cv->value == 999);
+
+        // Check getting a const-qualified type from a const any.
+        cv = any_cast<Type const>(&ca);
+        assert(cv != nullptr);
+        assert(cv == v);
+        assert(cv->value == 999);
+
+        // Check that no more objects were created, copied or moved.
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+    }
+    assert(Type::count == 0);
+}
+
+void test_cast_non_copyable_type()
+{
+    // Even though 'any' never stores non-copyable types
+    // we still need to support any_cast<NoCopy>(ptr)
+    struct NoCopy { NoCopy(NoCopy const&) = delete; };
+    std::any a(42);
+    std::any const& ca = a;
+    assert(std::any_cast<NoCopy>(&a) == nullptr);
+    assert(std::any_cast<NoCopy>(&ca) == nullptr);
+}
+
+int main() {
+    test_cast_is_noexcept();
+    test_cast_return_type();
+    test_cast_nullptr();
+    test_cast_empty();
+    test_cast<small>();
+    test_cast<large>();
+    test_cast_non_copyable_type();
+}

test/std/utilities/any/any.nonmembers/any.cast/any_cast_reference.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class ValueType>
+// ValueType const any_cast(any const&);
+//
+// template <class ValueType>
+// ValueType any_cast(any &);
+//
+// template <class ValueType>
+// ValueType any_cast(any &&);
+
+#include <any>
+#include <type_traits>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+using std::bad_any_cast;
+
+
+// Test that the operators are NOT marked noexcept.
+void test_cast_is_not_noexcept() {
+    any a;
+    static_assert(!noexcept(any_cast<int>(static_cast<any&>(a))), "");
+    static_assert(!noexcept(any_cast<int>(static_cast<any const&>(a))), "");
+    static_assert(!noexcept(any_cast<int>(static_cast<any &&>(a))), "");
+}
+
+// Test that the return type of any_cast is correct.
+void test_cast_return_type() {
+    any a;
+    static_assert(std::is_same<decltype(any_cast<int>(a)), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const>(a)), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int&>(a)), int&>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const&>(a)), int const&>::value, "");
+
+    static_assert(std::is_same<decltype(any_cast<int&&>(a)), int&&>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const&&>(a)), int const&&>::value, "");
+
+    static_assert(std::is_same<decltype(any_cast<int>(std::move(a))), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const>(std::move(a))), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int&>(std::move(a))), int&>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const&>(std::move(a))), int const&>::value, "");
+
+    static_assert(std::is_same<decltype(any_cast<int&&>(std::move(a))), int&&>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const&&>(std::move(a))), int const&&>::value, "");
+
+    any const& ca = a;
+    static_assert(std::is_same<decltype(any_cast<int>(ca)), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const>(ca)), int>::value, "");
+    static_assert(std::is_same<decltype(any_cast<int const&>(ca)), int const&>::value, "");
+
+    static_assert(std::is_same<decltype(any_cast<int const&&>(ca)), int const&&>::value, "");
+}
+
+template <class Type, class ConstT = Type>
+void checkThrows(any& a)
+{
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+    try {
+        any_cast<Type>(a);
+        assert(false);
+    } catch (bad_any_cast const &) {
+            // do nothing
+    } catch (...) {
+        assert(false);
+    }
+
+    try {
+        any_cast<ConstT>(static_cast<any const&>(a));
+        assert(false);
+    } catch (bad_any_cast const &) {
+            // do nothing
+    } catch (...) {
+        assert(false);
+    }
+
+    try {
+        any_cast<Type>(static_cast<any&&>(a));
+        assert(false);
+    } catch (bad_any_cast const &) {
+            // do nothing
+    } catch (...) {
+        assert(false);
+    }
+#endif
+}
+
+void test_cast_empty() {
+    // None of these operations should allocate.
+    DisableAllocationGuard g; ((void)g);
+    any a;
+    checkThrows<int>(a);
+}
+
+template <class Type>
+void test_cast_to_reference() {
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a((Type(42)));
+        any const& ca = a;
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+
+        // Try a cast to a bad type.
+        // NOTE: Type cannot be an int.
+        checkThrows<int>(a);
+        checkThrows<int&, int const&>(a);
+        checkThrows<Type*, Type const*>(a);
+        checkThrows<Type const*>(a);
+
+        // Check getting a type by reference from a non-const lvalue any.
+        {
+            Type& v = any_cast<Type&>(a);
+            assert(v.value == 42);
+
+            Type const &cv = any_cast<Type const&>(a);
+            assert(&cv == &v);
+        }
+        // Check getting a type by reference from a const lvalue any.
+        {
+            Type const& v = any_cast<Type const&>(ca);
+            assert(v.value == 42);
+
+            Type const &cv = any_cast<Type const&>(ca);
+            assert(&cv == &v);
+        }
+        // Check getting a type by reference from a non-const rvalue
+        {
+            Type& v = any_cast<Type&>(std::move(a));
+            assert(v.value == 42);
+
+            Type const &cv = any_cast<Type const&>(std::move(a));
+            assert(&cv == &v);
+        }
+        // Check getting a type by reference from a const rvalue any.
+        {
+            Type const& v = any_cast<Type const&>(std::move(ca));
+            assert(v.value == 42);
+
+            Type const &cv = any_cast<Type const&>(std::move(ca));
+            assert(&cv == &v);
+        }
+        // Check getting a type by reference from a const rvalue any.
+        {
+            Type&& v = any_cast<Type&&>(std::move(a));
+            assert(v.value == 42);
+            assert(any_cast<Type&>(a).value == 42);
+
+            Type&& cv = any_cast<Type&&>(std::move(a));
+            assert(&cv == &v);
+            assert(any_cast<Type&>(a).value == 42);
+        }
+        // Check getting a type by reference from a const rvalue any.
+        {
+            Type const&& v = any_cast<Type const&&>(std::move(a));
+            assert(v.value == 42);
+            assert(any_cast<Type&>(a).value == 42);
+
+            Type const&& cv = any_cast<Type const&&>(std::move(a));
+            assert(&cv == &v);
+            assert(any_cast<Type&>(a).value == 42);
+        }
+        // Check that the original object hasn't been changed.
+        assertContains<Type>(a, 42);
+
+        // Check that no objects have been created/copied/moved.
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+    }
+    assert(Type::count == 0);
+}
+
+template <class Type>
+void test_cast_to_value() {
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a((Type(42)));
+        any const& ca = a;
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 1);
+
+        // Try a cast to a bad type.
+        // NOTE: Type cannot be an int.
+        checkThrows<int>(a);
+        checkThrows<int&, int const&>(a);
+        checkThrows<Type*, Type const*>(a);
+        checkThrows<Type const*>(a);
+
+        Type::reset(); // NOTE: reset does not modify Type::count
+        // Check getting Type by value from a non-const lvalue any.
+        // This should cause the non-const copy constructor to be called.
+        {
+            Type t = any_cast<Type>(a);
+
+            assert(Type::count == 2);
+            assert(Type::copied == 1);
+            assert(Type::const_copied == 0);
+            assert(Type::non_const_copied == 1);
+            assert(Type::moved == 0);
+            assert(t.value == 42);
+        }
+        assert(Type::count == 1);
+        Type::reset();
+        // Check getting const Type by value from a non-const lvalue any.
+        // This should cause the const copy constructor to be called.
+        {
+            Type t = any_cast<Type const>(a);
+
+            assert(Type::count == 2);
+            assert(Type::copied == 1);
+            assert(Type::const_copied == 1);
+            assert(Type::non_const_copied == 0);
+            assert(Type::moved == 0);
+            assert(t.value == 42);
+        }
+        assert(Type::count == 1);
+        Type::reset();
+        // Check getting Type by value from a non-const lvalue any.
+        // This should cause the const copy constructor to be called.
+        {
+            Type t = any_cast<Type>(static_cast<any const&>(a));
+
+            assert(Type::count == 2);
+            assert(Type::copied == 1);
+            assert(Type::const_copied == 1);
+            assert(Type::non_const_copied == 0);
+            assert(Type::moved == 0);
+            assert(t.value == 42);
+        }
+        assert(Type::count == 1);
+        Type::reset();
+        // Check getting Type by value from a non-const rvalue any.
+        // This should cause the non-const copy constructor to be called.
+        {
+            Type t = any_cast<Type>(static_cast<any &&>(a));
+
+            assert(Type::count == 2);
+            assert(Type::moved == 1);
+            assert(Type::copied == 0);
+            assert(Type::const_copied == 0);
+            assert(Type::non_const_copied == 0);
+            assert(t.value == 42);
+            assert(any_cast<Type&>(a).value == 0);
+            any_cast<Type&>(a).value = 42; // reset the value
+        }
+        assert(Type::count == 1);
+        Type::reset();
+        // Check getting const Type by value from a non-const rvalue any.
+        // This should cause the const copy constructor to be called.
+        {
+            Type t = any_cast<Type const>(static_cast<any &&>(a));
+
+            assert(Type::count == 2);
+            assert(Type::copied == 1);
+            assert(Type::const_copied == 1);
+            assert(Type::non_const_copied == 0);
+            assert(Type::moved == 0);
+            assert(t.value == 42);
+            assert(any_cast<Type&>(a).value == 42);
+        }
+        assert(Type::count == 1);
+        Type::reset();
+        // Check getting Type by value from a const rvalue any.
+        // This should cause the const copy constructor to be called.
+        {
+            Type t = any_cast<Type>(static_cast<any const&&>(a));
+
+            assert(Type::count == 2);
+            assert(Type::copied == 1);
+            assert(Type::const_copied == 1);
+            assert(Type::non_const_copied == 0);
+            assert(Type::moved == 0);
+            assert(t.value == 42);
+            assert(any_cast<Type&>(a).value == 42);
+        }
+        // Ensure we still only have 1 Type object alive.
+        assert(Type::count == 1);
+
+        // Check that the original object hasn't been changed.
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+}
+
+void test_cast_to_value_deleted_move()
+{
+    using Type = deleted_move;
+    {
+        std::any a(deleted_move(42));
+        assert(Type::count == 1);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+
+        Type const& t = any_cast<Type>(a);
+        assert(Type::count == 2);
+        assert(Type::copied == 2);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        std::any a(deleted_move(42));
+        std::any const& ca = a;
+        assert(Type::count == 1);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+
+        Type const& t = any_cast<Type>(ca);
+        assert(Type::count == 2);
+        assert(Type::copied == 2);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        std::any a(deleted_move(42));
+        assert(Type::count == 1);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+
+        Type&& t = any_cast<Type>(std::move(a));
+        assert(Type::count == 2);
+        assert(Type::copied == 2);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        std::any a(deleted_move(42));
+        std::any const& ca = a;
+        assert(Type::count == 1);
+        assert(Type::copied == 1);
+        assert(Type::moved == 0);
+
+        Type&& t = any_cast<Type>(std::move(ca));
+        assert(Type::count == 2);
+        assert(Type::copied == 2);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+}
+
+// Even though you can't get a non-copyable class into std::any
+// the standard requires that these overloads compile and function.
+void test_non_copyable_ref() {
+    struct no_copy
+    {
+        no_copy() {}
+        no_copy(no_copy &&) {}
+    private:
+        no_copy(no_copy const &);
+    };
+
+    any a;
+    checkThrows<no_copy &, no_copy const&>(a);
+    checkThrows<no_copy const&>(a);
+    assertEmpty(a);
+}
+
+int main() {
+    test_cast_is_not_noexcept();
+    test_cast_return_type();
+    test_cast_empty();
+    test_cast_to_reference<small>();
+    test_cast_to_reference<large>();
+    test_cast_to_value<small>();
+    test_cast_to_value<large>();
+    test_cast_to_value_deleted_move();
+    test_non_copyable_ref();
+}

test/std/utilities/any/any.nonmembers/any.cast/const_correctness.fail.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class ValueType>
+// ValueType any_cast(any const &);
+
+// Try and cast away const.
+
+#include <any>
+
+struct TestType {};
+struct TestType2 {};
+
+int main()
+{
+    using std::any;
+    using std::any_cast;
+
+    any a;
+
+    // expected-error@any:* 2 {{binding value of type '_Tp' (aka 'const TestType') to reference to type 'TestType' drops 'const' qualifier}}
+    any_cast<TestType &>(static_cast<any const&>(a)); // expected-note {{requested here}}
+    any_cast<TestType &&>(static_cast<any const&>(a)); // expected-note {{requested here}}
+
+    // expected-error@any:* 2 {{binding value of type '_Tp' (aka 'const TestType2') to reference to type 'TestType2' drops 'const' qualifier}}
+    any_cast<TestType2 &>(static_cast<any const&&>(a)); // expected-note {{requested here}}
+    any_cast<TestType2 &&>(static_cast<any const&&>(a)); // expected-note {{requested here}}
+}

test/std/utilities/any/any.nonmembers/any.cast/not_copy_constructible.fail.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class ValueType>
+// ValueType const any_cast(any const&);
+//
+// template <class ValueType>
+// ValueType any_cast(any &);
+//
+// template <class ValueType>
+// ValueType any_cast(any &&);
+
+// Test instantiating the any_cast with a non-copyable type.
+
+#include <any>
+
+using std::any;
+using std::any_cast;
+
+struct no_copy
+{
+    no_copy() {}
+    no_copy(no_copy &&) {}
+private:
+    no_copy(no_copy const &);
+};
+
+int main() {
+    any a;
+    any_cast<no_copy>(static_cast<any&>(a)); // expected-note {{requested here}}
+    any_cast<no_copy>(static_cast<any const&>(a)); // expected-note {{requested here}}
+    any_cast<no_copy>(static_cast<any &&>(a)); // expected-note {{requested here}}
+    // expected-error@any:* 3 {{static_assert failed "_ValueType is required to be a reference or a CopyConstructible type."}}
+    // expected-error@any:* 2 {{calling a private constructor of class 'no_copy'}}
+}
 No newline at end of file

test/std/utilities/any/any.nonmembers/any.cast/reference_types.fail.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class ValueType>
+// ValueType const* any_cast(any const *) noexcept;
+//
+// template <class ValueType>
+// ValueType * any_cast(any *) noexcept;
+
+#include <any>
+
+using std::any;
+using std::any_cast;
+
+int main()
+{
+    any a(1);
+    any_cast<int &>(&a); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int &&>(&a); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int const &>(&a); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int const&&>(&a); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any const& a2 = a;
+    any_cast<int &>(&a2); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int &&>(&a2); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int const &>(&a2); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+    any_cast<int const &&>(&a2); // expected-error@any:* 1 {{static_assert failed "_ValueType may not be a reference."}}
+}

test/std/utilities/any/any.nonmembers/make_any.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// template <class T, class ...Args> any make_any(Args&&...);
+// template <class T, class U, class ...Args>
+// any make_any(initializer_list<U>, Args&&...);
+
+#include <any>
+#include <cassert>
+
+#include "any_helpers.h"
+#include "count_new.hpp"
+#include "test_macros.h"
+
+using std::any;
+using std::any_cast;
+
+
+template <class Type>
+void test_make_any_type() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a = std::make_any<Type>();
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 0);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a = std::make_any<Type>(101);
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 101);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+    {
+        any a = std::make_any<Type>(-1, 42, -1);
+
+        assert(Type::count == 1);
+        assert(Type::copied == 0);
+        assert(Type::moved == 0);
+        assertContains<Type>(a, 42);
+    }
+    assert(Type::count == 0);
+    Type::reset();
+}
+
+template <class Type>
+void test_make_any_type_tracked() {
+    // constructing from a small type should perform no allocations.
+    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
+    {
+        any a = std::make_any<Type>();
+        assertArgsMatch<Type>(a);
+    }
+    {
+        any a = std::make_any<Type>(-1, 42, -1);
+        assertArgsMatch<Type, int, int, int>(a);
+    }
+    // initializer_list constructor tests
+    {
+        any a = std::make_any<Type>({-1, 42, -1});
+        assertArgsMatch<Type, std::initializer_list<int>>(a);
+    }
+    {
+        int x = 42;
+        any a  = std::make_any<Type>({-1, 42, -1}, x);
+        assertArgsMatch<Type, std::initializer_list<int>, int&>(a);
+    }
+}
+
+#ifndef TEST_HAS_NO_EXCEPTIONS
+
+struct SmallThrows {
+  SmallThrows(int) { throw 42; }
+  SmallThrows(std::initializer_list<int>, int) { throw 42; }
+};
+static_assert(IsSmallObject<SmallThrows>::value, "");
+
+struct LargeThrows {
+  LargeThrows(int) { throw 42; }
+  LargeThrows(std::initializer_list<int>, int) { throw 42; }
+  int data[10];
+};
+static_assert(!IsSmallObject<LargeThrows>::value, "");
+
+template <class Type>
+void test_make_any_throws()
+{
+    {
+        try {
+            std::make_any<Type>(101);
+            assert(false);
+        } catch (int const&) {
+        }
+    }
+    {
+        try {
+            std::make_any<Type>({1, 2, 3}, 101);
+            assert(false);
+        } catch (int const&) {
+        }
+    }
+}
+
+#endif
+
+int main() {
+    test_make_any_type<small>();
+    test_make_any_type<large>();
+    test_make_any_type<small_throws_on_copy>();
+    test_make_any_type<large_throws_on_copy>();
+    test_make_any_type<throws_on_move>();
+    test_make_any_type_tracked<small_tracked_t>();
+    test_make_any_type_tracked<large_tracked_t>();
+#ifndef TEST_HAS_NO_EXCEPTIONS
+    test_make_any_throws<SmallThrows>();
+    test_make_any_throws<LargeThrows>();
+
+#endif
+}
 No newline at end of file

test/std/utilities/any/any.nonmembers/swap.pass.cpp

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+
+// <any>
+
+// void swap(any &, any &) noexcept
+
+// swap(...) just wraps any::swap(...). That function is tested elsewhere.
+
+#include <any>
+#include <cassert>
+
+using std::any;
+using std::any_cast;
+
+int main()
+{
+
+    { // test noexcept
+        any a;
+        static_assert(noexcept(swap(a, a)), "swap(any&, any&) must be noexcept");
+    }
+    {
+        any a1(1);
+        any a2(2);
+
+        swap(a1, a2);
+
+        assert(any_cast<int>(a1) == 2);
+        assert(any_cast<int>(a2) == 1);
+    }
+}

test/support/any_helpers.h

 //===----------------------------------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is dual licensed under the MIT and the University of Illinois Open
 // Source Licenses. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 #ifndef ANY_HELPERS_H
 #define ANY_HELPERS_H
 
-#include <experimental/any>
 #include <typeinfo>
 #include <type_traits>
 #include <cassert>
 
+namespace std { namespace experimental {} }
+
 #include "test_macros.h"
+#include "type_id.h"
 
 #if !defined(TEST_HAS_NO_RTTI)
 #define RTTI_ASSERT(X) assert(X)
 #else
 #define RTTI_ASSERT(X)
 #endif
 
 template <class _Tp>
   struct IsSmallObject
     : public std::integral_constant<bool
         , sizeof(_Tp) <= (sizeof(void*)*3)
           && std::alignment_of<void*>::value
              % std::alignment_of<_Tp>::value == 0
           && std::is_nothrow_move_constructible<_Tp>::value
         >
   {};
 
+template <class T>
+bool containsType(std::any const& a) {
+#if !defined(TEST_HAS_NO_RTTI)
+    return a.type() == typeid(T);
+#else
+    return a.has_value() && std::any_cast<T>(&a) != nullptr;
+#endif
+}
 
 // Return 'true' if 'Type' will be considered a small type by 'any'
 template <class Type>
 bool isSmallType() {
-#if defined(_LIBCPP_VERSION)
-    return std::experimental::__any_imp::_IsSmallObject<Type>::value;
-#else
     return IsSmallObject<Type>::value;
-#endif
-
 }
 
 // Assert that an object is empty. If the object used to contain an object
 // of type 'LastType' check that it can no longer be accessed.
 template <class LastType = int>
-void assertEmpty(std::experimental::any const& a) {
-    assert(a.empty());
+void assertEmpty(std::any const& a) {
+    using namespace std;
+    assert(!a.has_value());
     RTTI_ASSERT(a.type() == typeid(void));
-    assert(std::experimental::any_cast<LastType const>(&a) == nullptr);
+    assert(any_cast<LastType const>(&a) == nullptr);
 }
 
 // Assert that an 'any' object stores the specified 'Type' and 'value'.
 template <class Type>
-void assertContains(std::experimental::any const& a, int value = 1) {
-    assert(!a.empty());
-    RTTI_ASSERT(a.type() == typeid(Type));
-    assert(std::experimental::any_cast<Type const &>(a).value == value);
+void assertContains(std::any const& a, int value = 1) {
+    assert(a.has_value());
+    assert(containsType<Type>(a));
+    assert(std::any_cast<Type const &>(a).value == value);
+}
+
+template <>
+void assertContains<int>(std::any const& a, int value) {
+    assert(a.has_value());
+    assert(containsType<int>(a));
+    assert(std::any_cast<int const &>(a) == value);
 }
 
 // Modify the value of a "test type" stored within an any to the specified
 // 'value'.
 template <class Type>
-void modifyValue(std::experimental::any& a, int value) {
-    assert(!a.empty());
-    RTTI_ASSERT(a.type() == typeid(Type));
-    std::experimental::any_cast<Type&>(a).value = value;
+void modifyValue(std::any& a, int value) {
+    using namespace std;
+    using namespace std::experimental;
+    assert(a.has_value());
+    assert(containsType<Type>(a));
+    any_cast<Type&>(a).value = value;
 }
 
 // A test type that will trigger the small object optimization within 'any'.
 template <int Dummy = 0>
 struct small_type
 {
     static int count;
     static int copied;
     static int moved;
     static int const_copied;
     static int non_const_copied;
 
     static void reset() {
         small_type::copied = 0;
         small_type::moved = 0;
         small_type::const_copied = 0;
         small_type::non_const_copied = 0;
     }
 
     int value;
 
-    explicit small_type(int val) : value(val) {
+    explicit small_type(int val = 0) : value(val) {
+        ++count;
+    }
+    explicit small_type(int, int val, int) : value(val) {
+        ++count;
+    }
+    small_type(std::initializer_list<int> il) : value(*il.begin()) {
         ++count;
     }
 
-    small_type(small_type const & other) throw() {
+    small_type(small_type const & other) noexcept {
         value = other.value;
         ++count;
         ++copied;
         ++const_copied;
     }
 
-    small_type(small_type& other) throw() {
+    small_type(small_type& other) noexcept {
         value = other.value;
         ++count;
         ++copied;
         ++non_const_copied;
     }
 
-    small_type(small_type && other) throw() {
+    small_type(small_type && other) noexcept {
         value = other.value;
         other.value = 0;
         ++count;
         ++moved;
     }
 
     ~small_type() {
         value = -1;
static void reset() {
         large_type::copied = 0;
         large_type::moved  = 0;
         large_type::const_copied = 0;
         large_type::non_const_copied = 0;
     }
 
     int value;
 
-    large_type(int val) : value(val) {
+    large_type(int val = 0) : value(val) {
         ++count;
         data[0] = 0;
     }
-
+    large_type(int, int val, int) : value(val) {
+        ++count;
+        data[0] = 0;
+    }
+    large_type(std::initializer_list<int> il) : value(*il.begin()) {
+        ++count;
+    }
     large_type(large_type const & other) {
         value = other.value;
         ++count;
         ++copied;
         ++const_copied;
     }
 
     large_type(large_type & other) {

 
 template <int Dummy>
 int large_type<Dummy>::non_const_copied = 0;
 
 typedef large_type<> large;
 typedef large_type<1> large1;
 typedef large_type<2> large2;
 
+
+struct deleted_move
+{
+    static int count;
+    static int copied;
+    static int moved;
+    static int const_copied;
+    static int non_const_copied;
+
+    static void reset() {
+        deleted_move::copied = 0;
+        deleted_move::moved = 0;
+        deleted_move::const_copied = 0;
+        deleted_move::non_const_copied = 0;
+    }
+
+    int value;
+
+    explicit deleted_move(int val = 0) : value(val) {
+        ++count;
+    }
+    explicit deleted_move(int, int val, int) : value(val) {
+        ++count;
+    }
+    deleted_move(std::initializer_list<int> il) : value(*il.begin()) {
+        ++count;
+    }
+
+    deleted_move(deleted_move const & other) noexcept {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++const_copied;
+    }
+
+    deleted_move(deleted_move& other) noexcept {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++non_const_copied;
+    }
+
+    deleted_move(deleted_move && other) = delete;
+
+    ~deleted_move() {
+        value = -1;
+        --count;
+    }
+
+private:
+    deleted_move& operator=(deleted_move const&) = delete;
+    deleted_move& operator=(deleted_move&&) = delete;
+};
+
+int deleted_move::count = 0;
+int deleted_move::copied = 0;
+int deleted_move::moved = 0;
+int deleted_move::const_copied = 0;
+int deleted_move::non_const_copied = 0;
+
+
 // The exception type thrown by 'small_throws_on_copy', 'large_throws_on_copy'
 // and 'throws_on_move'.
 struct my_any_exception {};
 
 void throwMyAnyExpression() {
 #if !defined(TEST_HAS_NO_EXCEPTIONS)
         throw my_any_exception();
 #else
         assert(false && "Exceptions are disabled");
 #endif
 }
 
 // A test type that will trigger the small object optimization within 'any'.
 // this type throws if it is copied.
 struct small_throws_on_copy
 {
     static int count;
+    static int copied;
+    static int moved;
+    static void reset() { count = copied = moved = 0; }
     int value;
 
     explicit small_throws_on_copy(int val = 0) : value(val) {
         ++count;
     }
-
+    explicit small_throws_on_copy(int, int val, int) : value(val) {
+        ++count;
+    }
     small_throws_on_copy(small_throws_on_copy const &) {
         throwMyAnyExpression();
     }
 
     small_throws_on_copy(small_throws_on_copy && other) throw() {
         value = other.value;
-        ++count;
+        ++count; ++moved;
     }
 
     ~small_throws_on_copy() {
         --count;
     }
 private:
     small_throws_on_copy& operator=(small_throws_on_copy const&) = delete;
     small_throws_on_copy& operator=(small_throws_on_copy &&) = delete;
 };
 
 int small_throws_on_copy::count = 0;
+int small_throws_on_copy::copied = 0;
+int small_throws_on_copy::moved = 0;
+
 
 // A test type that will NOT trigger the small object optimization within 'any'.
 // this type throws if it is copied.
 struct large_throws_on_copy
 {
     static int count;
+    static int copied;
+    static int moved;
+    static void reset() { count = copied = moved = 0; }
     int value = 0;
 
     explicit large_throws_on_copy(int val = 0) : value(val) {
         data[0] = 0;
         ++count;
     }
-
+    explicit large_throws_on_copy(int, int val, int) : value(val) {
+        data[0] = 0;
+        ++count;
+    }
     large_throws_on_copy(large_throws_on_copy const &) {
          throwMyAnyExpression();
     }
 
     large_throws_on_copy(large_throws_on_copy && other) throw() {
         value = other.value;
-        ++count;
+        ++count; ++moved;
     }
 
     ~large_throws_on_copy() {
         --count;
     }
 
 private:
     large_throws_on_copy& operator=(large_throws_on_copy const&) = delete;
     large_throws_on_copy& operator=(large_throws_on_copy &&) = delete;
     int data[10];
 };
 
 int large_throws_on_copy::count = 0;
+int large_throws_on_copy::copied = 0;
+int large_throws_on_copy::moved = 0;
 
 // A test type that throws when it is moved. This object will NOT trigger
 // the small object optimization in 'any'.
 struct throws_on_move
 {
     static int count;
+    static int copied;
+    static int moved;
+    static void reset() { count = copied = moved = 0; }
     int value;
 
     explicit throws_on_move(int val = 0) : value(val) { ++count; }
-
+    explicit throws_on_move(int, int val, int) : value(val) { ++count; }
     throws_on_move(throws_on_move const & other) {
         value = other.value;
-        ++count;
+        ++count; ++copied;
     }
 
     throws_on_move(throws_on_move &&) {
         throwMyAnyExpression();
     }
 
     ~throws_on_move() {
         --count;
     }
 private:
     throws_on_move& operator=(throws_on_move const&) = delete;
     throws_on_move& operator=(throws_on_move &&) = delete;
 };
 
 int throws_on_move::count = 0;
+int throws_on_move::copied = 0;
+int throws_on_move::moved = 0;
+
+struct small_tracked_t {
+  small_tracked_t()
+      : arg_types(&makeArgumentID<>()) {}
+  small_tracked_t(small_tracked_t const&) noexcept
+      : arg_types(&makeArgumentID<small_tracked_t const&>()) {}
+  small_tracked_t(small_tracked_t &&) noexcept
+      : arg_types(&makeArgumentID<small_tracked_t &&>()) {}
+  template <class ...Args>
+  explicit small_tracked_t(Args&&...)
+      : arg_types(&makeArgumentID<Args...>()) {}
+  template <class ...Args>
+  explicit small_tracked_t(std::initializer_list<int>, Args&&...)
+      : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {}
+
+  TypeID const* arg_types;
+};
+static_assert(IsSmallObject<small_tracked_t>::value, "must be small");
+
+struct large_tracked_t {
+  large_tracked_t()
+      : arg_types(&makeArgumentID<>()) { dummy[0] = 42; }
+  large_tracked_t(large_tracked_t const&) noexcept
+      : arg_types(&makeArgumentID<large_tracked_t const&>()) {}
+  large_tracked_t(large_tracked_t &&) noexcept
+      : arg_types(&makeArgumentID<large_tracked_t &&>()) {}
+  template <class ...Args>
+  explicit large_tracked_t(Args&&...)
+      : arg_types(&makeArgumentID<Args...>()) {}
+  template <class ...Args>
+  explicit large_tracked_t(std::initializer_list<int>, Args&&...)
+      : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {}
+
+  TypeID const* arg_types;
+  int dummy[10];
+};
+
+static_assert(!IsSmallObject<large_tracked_t>::value, "must be small");
+
+
+template <class Type, class ...Args>
+void assertArgsMatch(std::any const& a) {
+    using namespace std;
+    using namespace std::experimental;
+    assert(a.has_value());
+    assert(containsType<Type>(a));
+    assert(any_cast<Type const &>(a).arg_types == &makeArgumentID<Args...>());
+};
 
 
 #endif

test/support/experimental_any_helpers.h

+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#ifndef EXPERIMENTAL_ANY_HELPERS_H
+#define EXPERIMENTAL_ANY_HELPERS_H
+
+#include <experimental/any>
+#include <typeinfo>
+#include <type_traits>
+#include <cassert>
+
+#include "test_macros.h"
+
+#if !defined(TEST_HAS_NO_RTTI)
+#define RTTI_ASSERT(X) assert(X)
+#else
+#define RTTI_ASSERT(X)
+#endif
+
+template <class _Tp>
+  struct IsSmallObject
+    : public std::integral_constant<bool
+        , sizeof(_Tp) <= (sizeof(void*)*3)
+          && std::alignment_of<void*>::value
+             % std::alignment_of<_Tp>::value == 0
+          && std::is_nothrow_move_constructible<_Tp>::value
+        >
+  {};
+
+
+// Return 'true' if 'Type' will be considered a small type by 'any'
+template <class Type>
+bool isSmallType() {
+#if defined(_LIBCPP_VERSION)
+    return std::experimental::__any_imp::_IsSmallObject<Type>::value;
+#else
+    return IsSmallObject<Type>::value;
+#endif
+
+}
+
+// Assert that an object is empty. If the object used to contain an object
+// of type 'LastType' check that it can no longer be accessed.
+template <class LastType = int>
+void assertEmpty(std::experimental::any const& a) {
+    assert(a.empty());
+    RTTI_ASSERT(a.type() == typeid(void));
+    assert(std::experimental::any_cast<LastType const>(&a) == nullptr);
+}
+
+// Assert that an 'any' object stores the specified 'Type' and 'value'.
+template <class Type>
+void assertContains(std::experimental::any const& a, int value = 1) {
+    assert(!a.empty());
+    RTTI_ASSERT(a.type() == typeid(Type));
+    assert(std::experimental::any_cast<Type const &>(a).value == value);
+}
+
+// Modify the value of a "test type" stored within an any to the specified
+// 'value'.
+template <class Type>
+void modifyValue(std::experimental::any& a, int value) {
+    assert(!a.empty());
+    RTTI_ASSERT(a.type() == typeid(Type));
+    std::experimental::any_cast<Type&>(a).value = value;
+}
+
+// A test type that will trigger the small object optimization within 'any'.
+template <int Dummy = 0>
+struct small_type
+{
+    static int count;
+    static int copied;
+    static int moved;
+    static int const_copied;
+    static int non_const_copied;
+
+    static void reset() {
+        small_type::copied = 0;
+        small_type::moved = 0;
+        small_type::const_copied = 0;
+        small_type::non_const_copied = 0;
+    }
+
+    int value;
+
+    explicit small_type(int val) : value(val) {
+        ++count;
+    }
+
+    small_type(small_type const & other) throw() {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++const_copied;
+    }
+
+    small_type(small_type& other) throw() {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++non_const_copied;
+    }
+
+    small_type(small_type && other) throw() {
+        value = other.value;
+        other.value = 0;
+        ++count;
+        ++moved;
+    }
+
+    ~small_type() {
+        value = -1;
+        --count;
+    }
+
+private:
+    small_type& operator=(small_type const&) = delete;
+    small_type& operator=(small_type&&) = delete;
+};
+
+template <int Dummy>
+int small_type<Dummy>::count = 0;
+
+template <int Dummy>
+int small_type<Dummy>::copied = 0;
+
+template <int Dummy>
+int small_type<Dummy>::moved = 0;
+
+template <int Dummy>
+int small_type<Dummy>::const_copied = 0;
+
+template <int Dummy>
+int small_type<Dummy>::non_const_copied = 0;
+
+typedef small_type<> small;
+typedef small_type<1> small1;
+typedef small_type<2> small2;
+
+
+// A test type that will NOT trigger the small object optimization in any.
+template <int Dummy = 0>
+struct large_type
+{
+    static int count;
+    static int copied;
+    static int moved;
+    static int const_copied;
+    static int non_const_copied;
+
+    static void reset() {
+        large_type::copied = 0;
+        large_type::moved  = 0;
+        large_type::const_copied = 0;
+        large_type::non_const_copied = 0;
+    }
+
+    int value;
+
+    large_type(int val) : value(val) {
+        ++count;
+        data[0] = 0;
+    }
+
+    large_type(large_type const & other) {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++const_copied;
+    }
+
+    large_type(large_type & other) {
+        value = other.value;
+        ++count;
+        ++copied;
+        ++non_const_copied;
+    }
+
+    large_type(large_type && other) {
+        value = other.value;
+        other.value = 0;
+        ++count;
+        ++moved;
+    }
+
+    ~large_type()  {
+        value = 0;
+        --count;
+    }
+
+private:
+    large_type& operator=(large_type const&) = delete;
+    large_type& operator=(large_type &&) = delete;
+    int data[10];
+};
+
+template <int Dummy>
+int large_type<Dummy>::count = 0;
+
+template <int Dummy>
+int large_type<Dummy>::copied = 0;
+
+template <int Dummy>
+int large_type<Dummy>::moved = 0;
+
+template <int Dummy>
+int large_type<Dummy>::const_copied = 0;
+
+template <int Dummy>
+int large_type<Dummy>::non_const_copied = 0;
+
+typedef large_type<> large;
+typedef large_type<1> large1;
+typedef large_type<2> large2;
+
+// The exception type thrown by 'small_throws_on_copy', 'large_throws_on_copy'
+// and 'throws_on_move'.
+struct my_any_exception {};
+
+void throwMyAnyExpression() {
+#if !defined(TEST_HAS_NO_EXCEPTIONS)
+        throw my_any_exception();
+#else
+        assert(false && "Exceptions are disabled");
+#endif
+}
+
+// A test type that will trigger the small object optimization within 'any'.
+// this type throws if it is copied.
+struct small_throws_on_copy
+{
+    static int count;
+    int value;
+
+    explicit small_throws_on_copy(int val = 0) : value(val) {
+        ++count;
+    }
+
+    small_throws_on_copy(small_throws_on_copy const &) {
+        throwMyAnyExpression();
+    }
+
+    small_throws_on_copy(small_throws_on_copy && other) throw() {
+        value = other.value;
+        ++count;
+    }
+
+    ~small_throws_on_copy() {
+        --count;
+    }
+private:
+    small_throws_on_copy& operator=(small_throws_on_copy const&) = delete;
+    small_throws_on_copy& operator=(small_throws_on_copy &&) = delete;
+};
+
+int small_throws_on_copy::count = 0;
+
+// A test type that will NOT trigger the small object optimization within 'any'.
+// this type throws if it is copied.
+struct large_throws_on_copy
+{
+    static int count;
+    int value = 0;
+
+    explicit large_throws_on_copy(int val = 0) : value(val) {
+        data[0] = 0;
+        ++count;
+    }
+
+    large_throws_on_copy(large_throws_on_copy const &) {
+         throwMyAnyExpression();
+    }
+
+    large_throws_on_copy(large_throws_on_copy && other) throw() {
+        value = other.value;
+        ++count;
+    }
+
+    ~large_throws_on_copy() {
+        --count;
+    }
+
+private:
+    large_throws_on_copy& operator=(large_throws_on_copy const&) = delete;
+    large_throws_on_copy& operator=(large_throws_on_copy &&) = delete;
+    int data[10];
+};
+
+int large_throws_on_copy::count = 0;
+
+// A test type that throws when it is moved. This object will NOT trigger
+// the small object optimization in 'any'.
+struct throws_on_move
+{
+    static int count;
+    int value;
+
+    explicit throws_on_move(int val = 0) : value(val) { ++count; }
+
+    throws_on_move(throws_on_move const & other) {
+        value = other.value;
+        ++count;
+    }
+
+    throws_on_move(throws_on_move &&) {
+        throwMyAnyExpression();
+    }
+
+    ~throws_on_move() {
+        --count;
+    }
+private:
+    throws_on_move& operator=(throws_on_move const&) = delete;
+    throws_on_move& operator=(throws_on_move &&) = delete;
+};
+
+int throws_on_move::count = 0;
+
+
+#endif

test/support/test_macros.h

 #define TEST_HAS_EXTENSION(X) 0
 #endif
 
 #ifdef __has_builtin
 #define TEST_HAS_BUILTIN(X) __has_builtin(X)
 #else
 #define TEST_HAS_BUILTIN(X) 0
 #endif
+#ifdef __is_identifier
+// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
+// the compiler and '1' otherwise.
+#define TEST_HAS_BUILTIN_IDENTIFIER(X) !__is_identifier(X)
+#else
+#define TEST_HAS_BUILTIN_IDENTIFIER(X) 0
+#endif
 
 #if defined(__apple_build_version__)
 #define TEST_APPLE_CLANG_VER (__clang_major__ * 100) + __clang_minor__
 #elif defined(__clang_major__)
 #define TEST_CLANG_VER (__clang_major__ * 100) + __clang_minor__
 #elif defined(__GNUC__)
 #define TEST_GCC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
 #endif

www/cxx1z_status.html

<!--   <I>Note: "NAD" means that the issue was deemed "Not a defect"</I> -->
   <tr><td><a href="http://wg21.link/LWG2312">2312</a></td><td>tuple's constructor constraints need to be phrased more precisely</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2328">2328</a></td><td>Rvalue stream extraction should use perfect forwarding</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2393">2393</a></td><td>std::function's Callable definition is broken</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2422">2422</a></td><td>std::numeric_limits&lt;T&gt;::is_modulo description: "most machines" errata</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2426">2426</a></td><td>Issue about compare_exchange</td><td>Oulu</td><td></td></tr>
   <tr><td><a href="http://wg21.link/LWG2436">2436</a></td><td>Comparators for associative containers should always be CopyConstructible</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2441">2441</a></td><td>Exact-width atomic typedefs should be provided</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2451">2451</a></td><td>[fund.ts.v2] optional should 'forward' T's implicit conversions</td><td>Oulu</td><td></td></tr>
-  <tr><td><a href="http://wg21.link/LWG2509">2509</a></td><td>[fund.ts.v2] any_cast doesn't work with rvalue reference targets and cannot move with a value target</td><td>Oulu</td><td></td></tr>
+  <tr><td><a href="http://wg21.link/LWG2509">2509</a></td><td>[fund.ts.v2] any_cast doesn't work with rvalue reference targets and cannot move with a value target</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2516">2516</a></td><td>[fund.ts.v2] Public "exposition only" members in observer_ptr</td><td>Oulu</td><td></td></tr>
   <tr><td><a href="http://wg21.link/LWG2542">2542</a></td><td>Missing const requirements for associative containers</td><td>Oulu</td><td></td></tr>
   <tr><td><a href="http://wg21.link/LWG2549">2549</a></td><td>Tuple EXPLICIT constructor templates that take tuple parameters end up taking references to temporaries and will create dangling references</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2550">2550</a></td><td>Wording of unordered container's clear() method complexity</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2551">2551</a></td><td>[fund.ts.v2] "Exception safety" cleanup in library fundamentals required</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2555">2555</a></td><td>[fund.ts.v2] No handling for over-aligned types in optional</td><td>Oulu</td><td>Complete</td></tr>
   <tr><td><a href="http://wg21.link/LWG2573">2573</a></td><td>[fund.ts.v2] std::hash&lt;std::experimental::shared_ptr&gt; does not work for arrays</td><td>Oulu</td><td></td></tr>
   <tr><td><a href="http://wg21.link/LWG2596">2596</a></td><td>vector::data() should use addressof</td><td>Oulu</td><td>Complete</td></tr>