xref: /llvm-project/libcxx/include/__new/placement_new_delete.h (revision 9474e09459189fbed30f329a669f9c14979c5367)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef _LIBCPP___NEW_PLACEMENT_NEW_DELETE_H
10 #define _LIBCPP___NEW_PLACEMENT_NEW_DELETE_H
11 
12 #include <__config>
13 #include <__cstddef/size_t.h>
14 
15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16 #  pragma GCC system_header
17 #endif
18 
19 #if defined(_LIBCPP_ABI_VCRUNTIME)
20 #  include <new.h>
21 #else
22 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX26 void*
23 operator new(std::size_t, void* __p) _NOEXCEPT {
24   return __p;
25 }
26 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX26 void*
27 operator new[](std::size_t, void* __p) _NOEXCEPT {
28   return __p;
29 }
30 inline _LIBCPP_HIDE_FROM_ABI void operator delete(void*, void*) _NOEXCEPT {}
31 inline _LIBCPP_HIDE_FROM_ABI void operator delete[](void*, void*) _NOEXCEPT {}
32 #endif
33 
34 #endif // _LIBCPP___NEW_PLACEMENT_NEW_DELETE_H
35