1// Base to std::allocator -*- C++ -*-
2
3// Copyright (C) 2004-2020 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file bits/c++allocator.h
26 *  This is an internal header file, included by other library headers.
27 *  Do not attempt to use it directly. @headername{memory}
28 */
29
30#ifndef _GLIBCXX_CXX_ALLOCATOR_H
31#define _GLIBCXX_CXX_ALLOCATOR_H 1
32
33#include <ext/bitmap_allocator.h>
34
35#if __cplusplus >= 201103L
36namespace std
37{
38  /**
39   *  @brief  An alias to the base class for std::allocator.
40   *  @ingroup allocators
41   *
42   *  Used to set the std::allocator base class to
43   *  __gnu_cxx::bitmap_allocator.
44   *
45   *  @tparam  _Tp  Type of allocated object.
46    */
47  template<typename _Tp>
48    using __allocator_base = __gnu_cxx::bitmap_allocator<_Tp>;
49}
50#else
51// Define bitmap_allocator as the base class to std::allocator.
52# define __allocator_base  __gnu_cxx::bitmap_allocator
53#endif
54
55#endif
56