ceph/src/boost/boost/asio/detail/memory.hpp

   1 //
   2 // detail/memory.hpp
   3 // ~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_DETAIL_MEMORY_HPP
  12 #define BOOST_ASIO_DETAIL_MEMORY_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19 #include <memory>
  20
  21 #if !defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
  22 # include <boost/make_shared.hpp>
  23 # include <boost/shared_ptr.hpp>
  24 # include <boost/weak_ptr.hpp>
  25 #endif // !defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
  26
  27 #if !defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
  28 # include <boost/utility/addressof.hpp>
  29 #endif // !defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
  30
  31 namespace boost {
  32 namespace asio {
  33 namespace detail {
  34
  35 #if defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
  36 using std::make_shared;
  37 using std::shared_ptr;
  38 using std::weak_ptr;
  39 #else // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
  40 using boost::make_shared;
  41 using boost::shared_ptr;
  42 using boost::weak_ptr;
  43 #endif // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
  44
  45 #if defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
  46 using std::addressof;
  47 #else // defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
  48 using boost::addressof;
  49 #endif // defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
  50
  51 } // namespace detail
  52
  53 #if defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
  54 using std::allocator_arg_t;
  55 # define BOOST_ASIO_USES_ALLOCATOR(t) \
  56   namespace std { \
  57     template <typename Allocator> \
  58     struct uses_allocator<t, Allocator> : true_type {}; \
  59   } \
  60   /**/
  61 # define BOOST_ASIO_REBIND_ALLOC(alloc, t) \
  62   typename std::allocator_traits<alloc>::template rebind_alloc<t>
  63   /**/
  64 #else // defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
  65 struct allocator_arg_t {};
  66 # define BOOST_ASIO_USES_ALLOCATOR(t)
  67 # define BOOST_ASIO_REBIND_ALLOC(alloc, t) \
  68   typename alloc::template rebind<t>::other
  69   /**/
  70 #endif // defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
  71
  72 } // namespace asio
  73 } // namespace boost
  74
  75 #endif // BOOST_ASIO_DETAIL_MEMORY_HPP