1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_NEW
11#define _LIBCPP_NEW
12
13/*
14 new synopsis
15
16namespace std
17{
18
19class bad_alloc
20 : public exception
21{
22public:
23 bad_alloc() noexcept;
24 bad_alloc(const bad_alloc&) noexcept;
25 bad_alloc& operator=(const bad_alloc&) noexcept;
26 virtual const char* what() const noexcept;
27};
28
29class bad_array_new_length : public bad_alloc // C++14
30{
31public:
32 bad_array_new_length() noexcept;
33};
34
35enum class align_val_t : size_t {}; // C++17
36
37struct destroying_delete_t { // C++20
38 explicit destroying_delete_t() = default;
39};
40inline constexpr destroying_delete_t destroying_delete{}; // C++20
41
42struct nothrow_t { explicit nothrow_t() = default; };
43extern const nothrow_t nothrow;
44typedef void (*new_handler)();
45new_handler set_new_handler(new_handler new_p) noexcept;
46new_handler get_new_handler() noexcept;
47
48// 21.6.4, pointer optimization barrier
49template <class T> [[nodiscard]] constexpr T* launder(T* p) noexcept; // C++17, nodiscard since C++20
50} // std
51
52void* operator new(std::size_t size); // replaceable, nodiscard in C++20
53void* operator new(std::size_t size, std::align_val_t alignment); // replaceable, C++17, nodiscard in C++20
54void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++20
55void* operator new(std::size_t size, std::align_val_t alignment,
56 const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++20
57void operator delete(void* ptr) noexcept; // replaceable
58void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14
59void operator delete(void* ptr, std::align_val_t alignment) noexcept; // replaceable, C++17
60void operator delete(void* ptr, std::size_t size,
61 std::align_val_t alignment) noexcept; // replaceable, C++17
62void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable
63void operator delete(void* ptr, std:align_val_t alignment,
64 const std::nothrow_t&) noexcept; // replaceable, C++17
65
66void* operator new[](std::size_t size); // replaceable, nodiscard in C++20
67void* operator new[](std::size_t size,
68 std::align_val_t alignment) noexcept; // replaceable, C++17, nodiscard in C++20
69void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++20
70void* operator new[](std::size_t size, std::align_val_t alignment,
71 const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++20
72void operator delete[](void* ptr) noexcept; // replaceable
73void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14
74void operator delete[](void* ptr,
75 std::align_val_t alignment) noexcept; // replaceable, C++17
76void operator delete[](void* ptr, std::size_t size,
77 std::align_val_t alignment) noexcept; // replaceable, C++17
78void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable
79void operator delete[](void* ptr, std::align_val_t alignment,
80 const std::nothrow_t&) noexcept; // replaceable, C++17
81
82void* operator new (std::size_t size, void* ptr) noexcept; // nodiscard in C++20, constexpr since C++26
83void* operator new[](std::size_t size, void* ptr) noexcept; // nodiscard in C++20, constexpr since C++26
84void operator delete (void* ptr, void*) noexcept;
85void operator delete[](void* ptr, void*) noexcept;
86
87*/
88
89#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
90# include <__cxx03/new>
91#else
92# include <__config>
93# include <__new/align_val_t.h>
94# include <__new/allocate.h>
95# include <__new/exceptions.h>
96# include <__new/global_new_delete.h>
97# include <__new/new_handler.h>
98# include <__new/nothrow_t.h>
99# include <__new/placement_new_delete.h>
100
101# if _LIBCPP_STD_VER >= 17
102# include <__new/interference_size.h>
103# include <__new/launder.h>
104# endif
105
106# if _LIBCPP_STD_VER >= 20
107# include <__new/destroying_delete_t.h>
108# endif
109
110// feature-test macros
111# include <version>
112
113# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
114# pragma GCC system_header
115# endif
116
117# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
118# include <cstddef>
119# include <cstdlib>
120# include <type_traits>
121# endif
122#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
123
124#endif // _LIBCPP_NEW
125