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73 lines
2 KiB
C++
73 lines
2 KiB
C++
//
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// detail/memory.hpp
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// ~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_MEMORY_HPP
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#define BOOST_ASIO_DETAIL_MEMORY_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#include <memory>
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#if !defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
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# include <boost/shared_ptr.hpp>
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# include <boost/weak_ptr.hpp>
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#endif // !defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
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#if !defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
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# include <boost/utility/addressof.hpp>
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#endif // !defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
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namespace boost {
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namespace asio {
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namespace detail {
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#if defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
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using std::shared_ptr;
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using std::weak_ptr;
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#else // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
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using boost::shared_ptr;
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using boost::weak_ptr;
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#endif // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
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#if defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
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using std::addressof;
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#else // defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
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using boost::addressof;
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#endif // defined(BOOST_ASIO_HAS_STD_ADDRESSOF)
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} // namespace detail
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#if defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
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using std::allocator_arg_t;
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# define BOOST_ASIO_USES_ALLOCATOR(t) \
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namespace std { \
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template <typename Allocator> \
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struct uses_allocator<t, Allocator> : true_type {}; \
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} \
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/**/
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# define BOOST_ASIO_REBIND_ALLOC(alloc, t) \
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typename std::allocator_traits<alloc>::template rebind_alloc<t>
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/**/
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#else // defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
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struct allocator_arg_t {};
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# define BOOST_ASIO_USES_ALLOCATOR(t)
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# define BOOST_ASIO_REBIND_ALLOC(alloc, t) \
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typename alloc::template rebind<t>::other
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/**/
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#endif // defined(BOOST_ASIO_HAS_CXX11_ALLOCATORS)
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} // namespace asio
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} // namespace boost
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#endif // BOOST_ASIO_DETAIL_MEMORY_HPP
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