1/*
2 * Copyright Andrey Semashev 2021.
3 * Distributed under the Boost Software License, Version 1.0.
4 * (See accompanying file LICENSE_1_0.txt or copy at
5 * http://www.boost.org/LICENSE_1_0.txt)
6 */
7/*!
8 * \file use_std_allocator.hpp
9 * \author Andrey Semashev
10 * \date 04.03.2021
11 *
12 * The header defines \c use_std_allocator tag type.
13 */
14
15#ifndef BOOST_LOG_UTILITY_USE_STD_ALLOCATOR_HPP_INCLUDED_
16#define BOOST_LOG_UTILITY_USE_STD_ALLOCATOR_HPP_INCLUDED_
17
18#include <boost/log/detail/config.hpp>
19#include <boost/log/detail/header.hpp>
20
21#ifdef BOOST_HAS_PRAGMA_ONCE
22#pragma once
23#endif
24
25namespace boost {
26
27BOOST_LOG_OPEN_NAMESPACE
28
29#ifndef BOOST_LOG_DOXYGEN_PASS
30
31namespace aux {
32
33namespace usestdalloc_adl_block {
34
35struct use_std_allocator {};
36
37} // namespace usestdalloc_adl_block
38
39} // namespace aux
40
41using aux::usestdalloc_adl_block::use_std_allocator;
42
43#else // BOOST_LOG_DOXYGEN_PASS
44
45/*!
46 * \brief Tag type that indicates that a specialization of \c std::allocator should be used for allocating memory
47 *
48 * This tag type can be used in template parameters in various components of Boost.Log. The type itself is not an allocator type.
49 */
50struct use_std_allocator {};
51
52#endif // BOOST_LOG_DOXYGEN_PASS
53
54BOOST_LOG_CLOSE_NAMESPACE // namespace log
55
56} // namespace boost
57
58#include <boost/log/detail/footer.hpp>
59
60#endif // BOOST_LOG_UTILITY_USE_STD_ALLOCATOR_HPP_INCLUDED_
61

source code of boost/libs/log/include/boost/log/utility/use_std_allocator.hpp