libcxx/include/__memory/allocator_destructor.h

   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_ALLOCATOR_DESTRUCTOR_H
  10 #define _LIBCPP___MEMORY_ALLOCATOR_DESTRUCTOR_H
  11
  12 #include <__config>
  13 #include <__memory/allocator_traits.h>
  14
  15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  16 #  pragma GCC system_header
  17 #endif
  18
  19 _LIBCPP_BEGIN_NAMESPACE_STD
  20
  21 template <class _Alloc>
  22 class __allocator_destructor
  23 {
  24     typedef _LIBCPP_NODEBUG allocator_traits<_Alloc> __alloc_traits;
  25 public:
  26     typedef _LIBCPP_NODEBUG typename __alloc_traits::pointer pointer;
  27     typedef _LIBCPP_NODEBUG typename __alloc_traits::size_type size_type;
  28 private:
  29     _Alloc& __alloc_;
  30     size_type __s_;
  31 public:
  32     _LIBCPP_INLINE_VISIBILITY __allocator_destructor(_Alloc& __a, size_type __s)
  33              _NOEXCEPT
  34         : __alloc_(__a), __s_(__s) {}
  35     _LIBCPP_INLINE_VISIBILITY
  36     void operator()(pointer __p) _NOEXCEPT
  37         {__alloc_traits::deallocate(__alloc_, __p, __s_);}
  38 };
  39
  40 _LIBCPP_END_NAMESPACE_STD
  41
  42 #endif // _LIBCPP___MEMORY_ALLOCATOR_DESTRUCTOR_H