56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
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//
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// noncopyable.hpp
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// ~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 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 ASIO_DETAIL_NONCOPYABLE_HPP
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#define ASIO_DETAIL_NONCOPYABLE_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 "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/config.hpp>
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#include <boost/noncopyable.hpp>
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#include <boost/detail/workaround.hpp>
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#include "asio/detail/pop_options.hpp"
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namespace asio {
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namespace detail {
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#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
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// Redefine the noncopyable class for Borland C++ since that compiler does not
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// apply the empty base optimisation unless the base class contains a dummy
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// char data member.
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class noncopyable
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{
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protected:
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noncopyable() {}
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~noncopyable() {}
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private:
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noncopyable(const noncopyable&);
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const noncopyable& operator=(const noncopyable&);
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char dummy_;
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};
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#else
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using boost::noncopyable;
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#endif
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} // namespace detail
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using asio::detail::noncopyable;
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_NONCOPYABLE_HPP
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