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156ab87500
See: * https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319 * https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701 We're dropping support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case. As a result of the second change, I had to bring in a subset of the headers from llvm-libc since libc++ now depends on these. Hopefully we can continue to get away with not copying the entirety of llvm-libc.
125 lines
5.0 KiB
C++
Vendored
125 lines
5.0 KiB
C++
Vendored
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_NEW
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#define _LIBCPP_NEW
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/*
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new synopsis
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namespace std
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{
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class bad_alloc
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: public exception
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{
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public:
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bad_alloc() noexcept;
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bad_alloc(const bad_alloc&) noexcept;
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bad_alloc& operator=(const bad_alloc&) noexcept;
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virtual const char* what() const noexcept;
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};
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class bad_array_new_length : public bad_alloc // C++14
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{
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public:
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bad_array_new_length() noexcept;
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};
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enum class align_val_t : size_t {}; // C++17
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struct destroying_delete_t { // C++20
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explicit destroying_delete_t() = default;
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};
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inline constexpr destroying_delete_t destroying_delete{}; // C++20
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struct nothrow_t { explicit nothrow_t() = default; };
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extern const nothrow_t nothrow;
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typedef void (*new_handler)();
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new_handler set_new_handler(new_handler new_p) noexcept;
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new_handler get_new_handler() noexcept;
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// 21.6.4, pointer optimization barrier
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template <class T> [[nodiscard]] constexpr T* launder(T* p) noexcept; // C++17, nodiscard since C++20
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} // std
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void* operator new(std::size_t size); // replaceable, nodiscard in C++20
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void* operator new(std::size_t size, std::align_val_t alignment); // replaceable, C++17, nodiscard in C++20
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void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++20
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void* operator new(std::size_t size, std::align_val_t alignment,
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const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++20
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void operator delete(void* ptr) noexcept; // replaceable
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void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14
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void operator delete(void* ptr, std::align_val_t alignment) noexcept; // replaceable, C++17
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void operator delete(void* ptr, std::size_t size,
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std::align_val_t alignment) noexcept; // replaceable, C++17
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void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable
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void operator delete(void* ptr, std:align_val_t alignment,
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const std::nothrow_t&) noexcept; // replaceable, C++17
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void* operator new[](std::size_t size); // replaceable, nodiscard in C++20
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void* operator new[](std::size_t size,
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std::align_val_t alignment) noexcept; // replaceable, C++17, nodiscard in C++20
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void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++20
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void* operator new[](std::size_t size, std::align_val_t alignment,
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const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++20
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void operator delete[](void* ptr) noexcept; // replaceable
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void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14
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void operator delete[](void* ptr,
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std::align_val_t alignment) noexcept; // replaceable, C++17
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void operator delete[](void* ptr, std::size_t size,
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std::align_val_t alignment) noexcept; // replaceable, C++17
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void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable
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void operator delete[](void* ptr, std::align_val_t alignment,
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const std::nothrow_t&) noexcept; // replaceable, C++17
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void* operator new (std::size_t size, void* ptr) noexcept; // nodiscard in C++20, constexpr since C++26
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void* operator new[](std::size_t size, void* ptr) noexcept; // nodiscard in C++20, constexpr since C++26
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void operator delete (void* ptr, void*) noexcept;
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void operator delete[](void* ptr, void*) noexcept;
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*/
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#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
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# include <__cxx03/new>
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#else
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# include <__config>
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# include <__new/align_val_t.h>
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# include <__new/allocate.h>
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# include <__new/exceptions.h>
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# include <__new/global_new_delete.h>
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# include <__new/new_handler.h>
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# include <__new/nothrow_t.h>
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# include <__new/placement_new_delete.h>
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# if _LIBCPP_STD_VER >= 17
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# include <__new/interference_size.h>
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# include <__new/launder.h>
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# endif
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# if _LIBCPP_STD_VER >= 20
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# include <__new/destroying_delete_t.h>
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# endif
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// feature-test macros
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# include <version>
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# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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# endif
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# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
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# include <cstddef>
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# include <cstdlib>
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# include <type_traits>
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# endif
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#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
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#endif // _LIBCPP_NEW
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