include/new - chromium/llvm-project/libcxx - Git at Google

 // -*- 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;

 } // std

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

 */

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

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

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

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

 namespace std // purposefully not using versioning namespace
 {

 #if !defined(_LIBCPP_ABI_MICROSOFT)
 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_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 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_NEW) || (_LIBCPP_STD_VER > 11)

 #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

 } // 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)

 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
 _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 void operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
 #endif

 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
 _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 void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
 #endif

 #ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
 _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 void operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
 #endif

 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
 _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 void operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
 #endif
 #endif

 inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;}
 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_BEGIN_NAMESPACE_STD

 inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) {
 #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) {
 #ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
  ::operator delete(__ptr);
 #else
  __builtin_operator_delete(__ptr);
 #endif
 }

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

	} // std

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

	*/

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

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

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

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

	namespace std // purposefully not using versioning namespace
	{

	#if !defined(_LIBCPP_ABI_MICROSOFT)
	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_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 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_NEW) \|\| (_LIBCPP_STD_VER > 11)

	#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

	} // 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)

	_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
	_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 void operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
	#endif

	_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
	_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 void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
	#endif

	#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
	_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
	_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 void operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
	#endif

	_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
	_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 void operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
	#endif
	#endif

	inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;}
	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_BEGIN_NAMESPACE_STD

	inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) {
	#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) {
	#ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
	::operator delete(__ptr);
	#else
	__builtin_operator_delete(__ptr);
	#endif
	}

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

	_LIBCPP_END_NAMESPACE_STD

	#endif // _LIBCPP_NEW