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- //
- // detail/memory.hpp
- // ~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- //
-
- #ifndef ASIO_DETAIL_MEMORY_HPP
- #define ASIO_DETAIL_MEMORY_HPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
- #include <memory>
-
- #if !defined(ASIO_HAS_STD_SHARED_PTR)
- # include <boost/shared_ptr.hpp>
- # include <boost/weak_ptr.hpp>
- #endif // !defined(ASIO_HAS_STD_SHARED_PTR)
-
- #if !defined(ASIO_HAS_STD_ADDRESSOF)
- # include <boost/utility/addressof.hpp>
- #endif // !defined(ASIO_HAS_STD_ADDRESSOF)
-
- namespace asio {
- namespace detail {
-
- #if defined(ASIO_HAS_STD_SHARED_PTR)
- using std::shared_ptr;
- using std::weak_ptr;
- #else // defined(ASIO_HAS_STD_SHARED_PTR)
- using boost::shared_ptr;
- using boost::weak_ptr;
- #endif // defined(ASIO_HAS_STD_SHARED_PTR)
-
- #if defined(ASIO_HAS_STD_ADDRESSOF)
- using std::addressof;
- #else // defined(ASIO_HAS_STD_ADDRESSOF)
- using boost::addressof;
- #endif // defined(ASIO_HAS_STD_ADDRESSOF)
-
- } // namespace detail
-
- #if defined(ASIO_HAS_CXX11_ALLOCATORS)
- using std::allocator_arg_t;
- # define ASIO_USES_ALLOCATOR(t) \
- namespace std { \
- template <typename Allocator> \
- struct uses_allocator<t, Allocator> : true_type {}; \
- } \
- /**/
- # define ASIO_REBIND_ALLOC(alloc, t) \
- typename std::allocator_traits<alloc>::template rebind_alloc<t>
- /**/
- #else // defined(ASIO_HAS_CXX11_ALLOCATORS)
- struct allocator_arg_t {};
- # define ASIO_USES_ALLOCATOR(t)
- # define ASIO_REBIND_ALLOC(alloc, t) \
- typename alloc::template rebind<t>::other
- /**/
- #endif // defined(ASIO_HAS_CXX11_ALLOCATORS)
-
- } // namespace asio
-
- #endif // ASIO_DETAIL_MEMORY_HPP
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