Warning: This file is not a C or C++ file. It does not have highlighting.
| 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___MEMORY_ALLOCATE_AT_LEAST_H |
| 10 | #define _LIBCPP___MEMORY_ALLOCATE_AT_LEAST_H |
| 11 | |
| 12 | #include <__config> |
| 13 | #include <__cstddef/size_t.h> |
| 14 | #include <__memory/allocator_traits.h> |
| 15 | |
| 16 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 17 | # pragma GCC system_header |
| 18 | #endif |
| 19 | |
| 20 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 21 | |
| 22 | #if _LIBCPP_STD_VER >= 23 |
| 23 | |
| 24 | template <class _Alloc> |
| 25 | [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto __allocate_at_least(_Alloc& __alloc, size_t __n) { |
| 26 | return std::allocator_traits<_Alloc>::allocate_at_least(__alloc, __n); |
| 27 | } |
| 28 | |
| 29 | #else |
| 30 | |
| 31 | template <class _Pointer> |
| 32 | struct __allocation_result { |
| 33 | _Pointer ptr; |
| 34 | size_t count; |
| 35 | }; |
| 36 | |
| 37 | template <class _Alloc> |
| 38 | [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI |
| 39 | _LIBCPP_CONSTEXPR __allocation_result<typename allocator_traits<_Alloc>::pointer> |
| 40 | __allocate_at_least(_Alloc& __alloc, size_t __n) { |
| 41 | return {__alloc.allocate(__n), __n}; |
| 42 | } |
| 43 | |
| 44 | #endif // _LIBCPP_STD_VER >= 23 |
| 45 | |
| 46 | _LIBCPP_END_NAMESPACE_STD |
| 47 | |
| 48 | #endif // _LIBCPP___MEMORY_ALLOCATE_AT_LEAST_H |
| 49 |
Warning: This file is not a C or C++ file. It does not have highlighting.