// // detail/noncopyable.hpp // ~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2011 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 BOOST_ASIO_DETAIL_NONCOPYABLE_HPP #define BOOST_ASIO_DETAIL_NONCOPYABLE_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <boost/asio/detail/config.hpp> #include <boost/noncopyable.hpp> #include <boost/detail/workaround.hpp> #include <boost/asio/detail/push_options.hpp> namespace boost { namespace asio { namespace detail { #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564)) // Redefine the noncopyable class for Borland C++ since that compiler does not // apply the empty base optimisation unless the base class contains a dummy // char data member. class noncopyable { protected: noncopyable() {} ~noncopyable() {} private: noncopyable(const noncopyable&); const noncopyable& operator=(const noncopyable&); char dummy_; }; #else using boost::noncopyable; #endif } // namespace detail using boost::asio::detail::noncopyable; } // namespace asio } // namespace boost #include <boost/asio/detail/pop_options.hpp> #endif // BOOST_ASIO_DETAIL_NONCOPYABLE_HPP