libcxx/include/new - toolchain/llvm-project - Gitiles

 // -*- C++ -*-
 //===----------------------------- new ------------------------------------===//
 //
 //                     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 _LIBCPP_NEW
 #define _LIBCPP_NEW

 /*
     new synopsis

 namespace std
 {

 class bad_alloc
     : public exception
 {
 public:
     bad_alloc() noexcept;
     bad_alloc(const bad_alloc&) noexcept;
     bad_alloc& operator=(const bad_alloc&) noexcept;
     virtual const char* what() const noexcept;
 };

 class bad_array_length : public bad_alloc // FIXME: Not part of C++
 {
 public:
     bad_array_length() noexcept;
 };

 class bad_array_new_length : public bad_alloc // C++14
 {
 public:
     bad_array_new_length() noexcept;
 };

 enum class align_val_t : size_t {}; // C++17
 struct nothrow_t {};
 extern const nothrow_t nothrow;
 typedef void (*new_handler)();
 new_handler set_new_handler(new_handler new_p) noexcept;
 new_handler get_new_handler() noexcept;

 // 21.6.4, pointer optimization barrier
 template <class T> constexpr T* launder(T* p) noexcept; // C++17
 }  // std

 void* operator new(std::size_t size);                                   // replaceable, nodiscard in C++2a
 void* operator new(std::size_t size, std::align_val_t alignment);       // replaceable, C++17, nodiscard in C++2a
 void* operator new(std::size_t size, const std::nothrow_t&) noexcept;   // replaceable, nodiscard in C++2a
 void* operator new(std::size_t size, std::align_val_t alignment,
                    const std::nothrow_t&) noexcept;                     // replaceable, C++17, nodiscard in C++2a
 void  operator delete(void* ptr) noexcept;                              // replaceable
 void  operator delete(void* ptr, std::size_t size) noexcept;            // replaceable, C++14
 void  operator delete(void* ptr, std::align_val_t alignment) noexcept;  // replaceable, C++17
 void  operator delete(void* ptr, std::size_t size,
                       std::align_val_t alignment) noexcept;             // replaceable, C++17
 void  operator delete(void* ptr, const std::nothrow_t&) noexcept;       // replaceable
 void  operator delete(void* ptr, std:align_val_t alignment,
                       const std::nothrow_t&) noexcept;                  // replaceable, C++17

 void* operator new[](std::size_t size);                                 // replaceable, nodiscard in C++2a
 void* operator new[](std::size_t size,
                      std::align_val_t alignment) noexcept;              // replaceable, C++17, nodiscard in C++2a
 void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++2a
 void* operator new[](std::size_t size, std::align_val_t alignment,
                      const std::nothrow_t&) noexcept;                   // replaceable, C++17, nodiscard in C++2a
 void  operator delete[](void* ptr) noexcept;                            // replaceable
 void  operator delete[](void* ptr, std::size_t size) noexcept;          // replaceable, C++14
 void  operator delete[](void* ptr,
                         std::align_val_t alignment) noexcept;           // replaceable, C++17
 void  operator delete[](void* ptr, std::size_t size,
                         std::align_val_t alignment) noexcept;           // replaceable, C++17
 void  operator delete[](void* ptr, const std::nothrow_t&) noexcept;     // replaceable
 void  operator delete[](void* ptr, std::align_val_t alignment,
                         const std::nothrow_t&) noexcept;                // replaceable, C++17

 void* operator new  (std::size_t size, void* ptr) noexcept;             // nodiscard in C++2a
 void* operator new[](std::size_t size, void* ptr) noexcept;             // nodiscard in C++2a
 void  operator delete  (void* ptr, void*) noexcept;
 void  operator delete[](void* ptr, void*) noexcept;

 */

 #include <__config>
 #include <exception>
 #include <type_traits>
 #include <cstddef>
 #ifdef _LIBCPP_NO_EXCEPTIONS
 #include <cstdlib>
 #endif

 #if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME)
 #include <new.h>
 #endif

 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif

 #if !(defined(_LIBCPP_BUILDING_LIBRARY) || _LIBCPP_STD_VER >= 14 || \
     (defined(__cpp_sized_deallocation) && __cpp_sized_deallocation >= 201309))
 # define _LIBCPP_HAS_NO_SIZED_DEALLOCATION
 #endif

 #if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \
     (!(defined(_LIBCPP_BUILDING_LIBRARY) || _LIBCPP_STD_VER > 14 || \
     (defined(__cpp_aligned_new) && __cpp_aligned_new >= 201606)))
 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
 #endif


 #if !__has_builtin(__builtin_operator_new) || \
    __has_builtin(__builtin_operator_new) < 201802L || \
    defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) || \
    !defined(__cpp_aligned_new) || __cpp_aligned_new < 201606
 #define _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
 #endif

 namespace std  // purposefully not using versioning namespace
 {

 #if !defined(_LIBCPP_ABI_MICROSOFT) || defined(_LIBCPP_NO_VCRUNTIME)
 struct _LIBCPP_TYPE_VIS nothrow_t {};
 extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;

 class _LIBCPP_EXCEPTION_ABI bad_alloc
     : public exception
 {
 public:
     bad_alloc() _NOEXCEPT;
     virtual ~bad_alloc() _NOEXCEPT;
     virtual const char* what() const _NOEXCEPT;
 };

 class _LIBCPP_EXCEPTION_ABI bad_array_new_length
     : public bad_alloc
 {
 public:
     bad_array_new_length() _NOEXCEPT;
     virtual ~bad_array_new_length() _NOEXCEPT;
     virtual const char* what() const _NOEXCEPT;
 };

 typedef void (*new_handler)();
 _LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
 _LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;

 #endif // !_LIBCPP_ABI_MICROSOFT || _LIBCPP_NO_VCRUNTIME

 _LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc();  // not in C++ spec

 #if defined(_LIBCPP_BUILDING_LIBRARY) || (_LIBCPP_STD_VER > 11)

 class _LIBCPP_EXCEPTION_ABI _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
     bad_array_length : public bad_alloc {
 public:
     bad_array_length() _NOEXCEPT;
     virtual ~bad_array_length() _NOEXCEPT;
     virtual const char* what() const _NOEXCEPT;
 };

 #define _LIBCPP_BAD_ARRAY_LENGTH_DEFINED

 #endif  // defined(_LIBCPP_BUILDING_LIBRARY) || (_LIBCPP_STD_VER > 11)

 #if !defined(_LIBCPP_ABI_MICROSOFT) || defined(_LIBCPP_NO_VCRUNTIME)
 #if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) || _LIBCPP_STD_VER > 14
 #ifndef _LIBCPP_CXX03_LANG
 enum class _LIBCPP_ENUM_VIS align_val_t : size_t { };
 #else
 enum align_val_t { __zero = 0, __max = (size_t)-1 };
 #endif
 #endif
 #endif

 }  // std

 #if defined(_LIBCPP_CXX03_LANG)
 #define _THROW_BAD_ALLOC throw(std::bad_alloc)
 #else
 #define _THROW_BAD_ALLOC
 #endif

 #if !defined(_LIBCPP_ABI_MICROSOFT) || defined(_LIBCPP_NO_VCRUNTIME)

 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p) _NOEXCEPT;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;
 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
 _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
 #endif

 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p) _NOEXCEPT;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;
 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
 _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
 #endif

 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, std::align_val_t) _NOEXCEPT;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete(void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
 _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
 #endif

 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, std::align_val_t) _NOEXCEPT;
 _LIBCPP_OVERRIDABLE_FUNC_VIS void  operator delete[](void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
 #ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
 _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void  operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
 #endif
 #endif

 _LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new  (std::size_t, void* __p) _NOEXCEPT {return __p;}
 _LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}
 inline _LIBCPP_INLINE_VISIBILITY void  operator delete  (void*, void*) _NOEXCEPT {}
 inline _LIBCPP_INLINE_VISIBILITY void  operator delete[](void*, void*) _NOEXCEPT {}

 #endif // !_LIBCPP_ABI_MICROSOFT || _LIBCPP_NO_VCRUNTIME

 _LIBCPP_BEGIN_NAMESPACE_STD

 _LIBCPP_CONSTEXPR inline _LIBCPP_INLINE_VISIBILITY bool __is_overaligned_for_new(size_t __align) _NOEXCEPT {
 #ifdef __STDCPP_DEFAULT_NEW_ALIGNMENT__
   return __align > __STDCPP_DEFAULT_NEW_ALIGNMENT__;
 #else
   return __align > alignment_of<max_align_t>::value;
 #endif
 }

 inline _LIBCPP_INLINE_VISIBILITY void *__libcpp_allocate(size_t __size, size_t __align) {
 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
   if (__is_overaligned_for_new(__align)) {
     const align_val_t __align_val = static_cast<align_val_t>(__align);
 # ifdef _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
     return ::operator new(__size, __align_val);
 # else
     return __builtin_operator_new(__size, __align_val);
 # endif
   }
 #else
   ((void)__align);
 #endif
 #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
   return ::operator new(__size);
 #else
   return __builtin_operator_new(__size);
 #endif
 }

 inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate(void* __ptr, size_t __align) {
 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
   if (__is_overaligned_for_new(__align)) {
     const align_val_t __align_val = static_cast<align_val_t>(__align);
 # ifdef _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
     return ::operator delete(__ptr, __align_val);
 # else
     return __builtin_operator_delete(__ptr, __align_val);
 # endif
   }
 #else
   ((void)__align);
 #endif
 #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
   return ::operator delete(__ptr);
 #else
   return __builtin_operator_delete(__ptr);
 #endif
 }

 #ifdef _LIBCPP_BAD_ARRAY_LENGTH_DEFINED
 _LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
 #ifndef _LIBCPP_NO_EXCEPTIONS
 _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
 #endif
 void __throw_bad_array_length()
 {
 #ifndef _LIBCPP_NO_EXCEPTIONS
     throw bad_array_length();
 #else
     _VSTD::abort();
 #endif
 }
 #endif

 template <class _Tp>
 _LIBCPP_NODISCARD_AFTER_CXX17 inline
 _LIBCPP_CONSTEXPR _Tp* __launder(_Tp* __p) _NOEXCEPT
 {
     static_assert (!(is_function<_Tp>::value), "can't launder functions" );
     static_assert (!(is_same<void, typename remove_cv<_Tp>::type>::value), "can't launder cv-void" );
 #ifdef _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER
     return __builtin_launder(__p);
 #else
     return __p;
 #endif
 }


 #if _LIBCPP_STD_VER > 14
 template <class _Tp>
 _LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY
 constexpr _Tp* launder(_Tp* __p) noexcept
 {
     return _VSTD::__launder(__p);
 }
 #endif

 _LIBCPP_END_NAMESPACE_STD

 #endif  // _LIBCPP_NEW
	// -- C++ --
	//===----------------------------- new ------------------------------------===//
	//
	// 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 _LIBCPP_NEW
	#define _LIBCPP_NEW

	/*
	new synopsis

	namespace std
	{

	class bad_alloc
	: public exception
	{
	public:
	bad_alloc() noexcept;
	bad_alloc(const bad_alloc&) noexcept;
	bad_alloc& operator=(const bad_alloc&) noexcept;
	virtual const char* what() const noexcept;
	};

	class bad_array_length : public bad_alloc // FIXME: Not part of C++
	{
	public:
	bad_array_length() noexcept;
	};

	class bad_array_new_length : public bad_alloc // C++14
	{
	public:
	bad_array_new_length() noexcept;
	};

	enum class align_val_t : size_t {}; // C++17
	struct nothrow_t {};
	extern const nothrow_t nothrow;
	typedef void (*new_handler)();
	new_handler set_new_handler(new_handler new_p) noexcept;
	new_handler get_new_handler() noexcept;

	// 21.6.4, pointer optimization barrier
	template <class T> constexpr T* launder(T* p) noexcept; // C++17
	} // std

	void* operator new(std::size_t size); // replaceable, nodiscard in C++2a
	void* operator new(std::size_t size, std::align_val_t alignment); // replaceable, C++17, nodiscard in C++2a
	void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++2a
	void* operator new(std::size_t size, std::align_val_t alignment,
	const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++2a
	void operator delete(void* ptr) noexcept; // replaceable
	void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14
	void operator delete(void* ptr, std::align_val_t alignment) noexcept; // replaceable, C++17
	void operator delete(void* ptr, std::size_t size,
	std::align_val_t alignment) noexcept; // replaceable, C++17
	void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable
	void operator delete(void* ptr, std:align_val_t alignment,
	const std::nothrow_t&) noexcept; // replaceable, C++17

	void* operator new[](std::size_t size); // replaceable, nodiscard in C++2a
	void* operator new[](std::size_t size,
	std::align_val_t alignment) noexcept; // replaceable, C++17, nodiscard in C++2a
	void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++2a
	void* operator new[](std::size_t size, std::align_val_t alignment,
	const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++2a
	void operator delete[](void* ptr) noexcept; // replaceable
	void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14
	void operator delete[](void* ptr,
	std::align_val_t alignment) noexcept; // replaceable, C++17
	void operator delete[](void* ptr, std::size_t size,
	std::align_val_t alignment) noexcept; // replaceable, C++17
	void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable
	void operator delete[](void* ptr, std::align_val_t alignment,
	const std::nothrow_t&) noexcept; // replaceable, C++17

	void* operator new (std::size_t size, void* ptr) noexcept; // nodiscard in C++2a
	void* operator new[](std::size_t size, void* ptr) noexcept; // nodiscard in C++2a
	void operator delete (void* ptr, void*) noexcept;
	void operator delete[](void* ptr, void*) noexcept;

	*/

	#include <__config>
	#include <exception>
	#include <type_traits>
	#include <cstddef>
	#ifdef _LIBCPP_NO_EXCEPTIONS
	#include <cstdlib>
	#endif

	#if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME)
	#include <new.h>
	#endif

	#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
	#pragma GCC system_header
	#endif

	#if !(defined(_LIBCPP_BUILDING_LIBRARY) \|\| _LIBCPP_STD_VER >= 14 \|\| \
	(defined(__cpp_sized_deallocation) && __cpp_sized_deallocation >= 201309))
	# define _LIBCPP_HAS_NO_SIZED_DEALLOCATION
	#endif

	#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \
	(!(defined(_LIBCPP_BUILDING_LIBRARY) \|\| _LIBCPP_STD_VER > 14 \|\| \
	(defined(__cpp_aligned_new) && __cpp_aligned_new >= 201606)))
	# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
	#endif


	#if !__has_builtin(__builtin_operator_new) \|\| \
	__has_builtin(__builtin_operator_new) < 201802L \|\| \
	defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) \|\| \
	!defined(__cpp_aligned_new) \|\| __cpp_aligned_new < 201606
	#define _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
	#endif

	namespace std // purposefully not using versioning namespace
	{

	#if !defined(_LIBCPP_ABI_MICROSOFT) \|\| defined(_LIBCPP_NO_VCRUNTIME)
	struct _LIBCPP_TYPE_VIS nothrow_t {};
	extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;

	class _LIBCPP_EXCEPTION_ABI bad_alloc
	: public exception
	{
	public:
	bad_alloc() _NOEXCEPT;
	virtual ~bad_alloc() _NOEXCEPT;
	virtual const char* what() const _NOEXCEPT;
	};

	class _LIBCPP_EXCEPTION_ABI bad_array_new_length
	: public bad_alloc
	{
	public:
	bad_array_new_length() _NOEXCEPT;
	virtual ~bad_array_new_length() _NOEXCEPT;
	virtual const char* what() const _NOEXCEPT;
	};

	typedef void (*new_handler)();
	_LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
	_LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;

	#endif // !_LIBCPP_ABI_MICROSOFT \|\| _LIBCPP_NO_VCRUNTIME

	_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec

	#if defined(_LIBCPP_BUILDING_LIBRARY) \|\| (_LIBCPP_STD_VER > 11)

	class _LIBCPP_EXCEPTION_ABI _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
	bad_array_length : public bad_alloc {
	public:
	bad_array_length() _NOEXCEPT;
	virtual ~bad_array_length() _NOEXCEPT;
	virtual const char* what() const _NOEXCEPT;
	};

	#define _LIBCPP_BAD_ARRAY_LENGTH_DEFINED

	#endif // defined(_LIBCPP_BUILDING_LIBRARY) \|\| (_LIBCPP_STD_VER > 11)

	#if !defined(_LIBCPP_ABI_MICROSOFT) \|\| defined(_LIBCPP_NO_VCRUNTIME)
	#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) \|\| _LIBCPP_STD_VER > 14
	#ifndef _LIBCPP_CXX03_LANG
	enum class _LIBCPP_ENUM_VIS align_val_t : size_t { };
	#else
	enum align_val_t { __zero = 0, __max = (size_t)-1 };
	#endif
	#endif
	#endif

	} // std

	#if defined(_LIBCPP_CXX03_LANG)
	#define _THROW_BAD_ALLOC throw(std::bad_alloc)
	#else
	#define _THROW_BAD_ALLOC
	#endif

	#if !defined(_LIBCPP_ABI_MICROSOFT) \|\| defined(_LIBCPP_NO_VCRUNTIME)

	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p) _NOEXCEPT;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;
	#ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
	_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
	#endif

	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p) _NOEXCEPT;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;
	#ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
	_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
	#endif

	#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t) _NOEXCEPT;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
	#ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
	_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
	#endif

	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
	_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t) _NOEXCEPT;
	_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
	#ifndef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
	_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
	#endif
	#endif

	_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;}
	_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}
	inline _LIBCPP_INLINE_VISIBILITY void operator delete (void, void) _NOEXCEPT {}
	inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void, void) _NOEXCEPT {}

	#endif // !_LIBCPP_ABI_MICROSOFT \|\| _LIBCPP_NO_VCRUNTIME

	_LIBCPP_BEGIN_NAMESPACE_STD

	_LIBCPP_CONSTEXPR inline _LIBCPP_INLINE_VISIBILITY bool __is_overaligned_for_new(size_t __align) _NOEXCEPT {
	#ifdef __STDCPP_DEFAULT_NEW_ALIGNMENT__
	return __align > __STDCPP_DEFAULT_NEW_ALIGNMENT__;
	#else
	return __align > alignment_of<max_align_t>::value;
	#endif
	}

	inline _LIBCPP_INLINE_VISIBILITY void *__libcpp_allocate(size_t __size, size_t __align) {
	#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
	if (__is_overaligned_for_new(__align)) {
	const align_val_t __align_val = static_cast<align_val_t>(__align);
	# ifdef _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
	return ::operator new(__size, __align_val);
	# else
	return __builtin_operator_new(__size, __align_val);
	# endif
	}
	#else
	((void)__align);
	#endif
	#ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
	return ::operator new(__size);
	#else
	return __builtin_operator_new(__size);
	#endif
	}

	inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate(void* __ptr, size_t __align) {
	#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
	if (__is_overaligned_for_new(__align)) {
	const align_val_t __align_val = static_cast<align_val_t>(__align);
	# ifdef _LIBCPP_HAS_NO_BUILTIN_ALIGNED_OPERATOR_NEW_DELETE
	return ::operator delete(__ptr, __align_val);
	# else
	return __builtin_operator_delete(__ptr, __align_val);
	# endif
	}
	#else
	((void)__align);
	#endif
	#ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
	return ::operator delete(__ptr);
	#else
	return __builtin_operator_delete(__ptr);
	#endif
	}

	#ifdef _LIBCPP_BAD_ARRAY_LENGTH_DEFINED
	_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
	#ifndef _LIBCPP_NO_EXCEPTIONS
	_LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
	#endif
	void __throw_bad_array_length()
	{
	#ifndef _LIBCPP_NO_EXCEPTIONS
	throw bad_array_length();
	#else
	_VSTD::abort();
	#endif
	}
	#endif

	template <class _Tp>
	_LIBCPP_NODISCARD_AFTER_CXX17 inline
	_LIBCPP_CONSTEXPR _Tp* __launder(_Tp* __p) _NOEXCEPT
	{
	static_assert (!(is_function<_Tp>::value), "can't launder functions" );
	static_assert (!(is_same<void, typename remove_cv<_Tp>::type>::value), "can't launder cv-void" );
	#ifdef _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER
	return __builtin_launder(__p);
	#else
	return __p;
	#endif
	}


	#if _LIBCPP_STD_VER > 14
	template <class _Tp>
	_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY
	constexpr _Tp* launder(_Tp* __p) noexcept
	{
	return _VSTD::__launder(__p);
	}
	#endif

	_LIBCPP_END_NAMESPACE_STD

	#endif // _LIBCPP_NEW