ceph/src/boost/boost/log/utility/use_std_allocator.hpp

   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
  25 namespace boost {
  26
  27 BOOST_LOG_OPEN_NAMESPACE
  28
  29 #ifndef BOOST_LOG_DOXYGEN_PASS
  30
  31 namespace aux {
  32
  33 namespace usestdalloc_adl_block {
  34
  35 struct use_std_allocator {};
  36
  37 } // namespace usestdalloc_adl_block
  38
  39 } // namespace aux
  40
  41 using 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  */
  50 struct use_std_allocator {};
  51
  52 #endif // BOOST_LOG_DOXYGEN_PASS
  53
  54 BOOST_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_