// // noncopyable.hpp // ~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2008 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_NONCOPYABLE_HPP #define ASIO_DETAIL_NONCOPYABLE_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include "asio/detail/push_options.hpp" #include "asio/detail/push_options.hpp" #include #include #include #include "asio/detail/pop_options.hpp" 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 asio::detail::noncopyable; } // namespace asio #include "asio/detail/pop_options.hpp" #endif // ASIO_DETAIL_NONCOPYABLE_HPP