boost/asio/detail/noncopyable.hpp

   1 //
   2 // noncopyable.hpp
   3 // ~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_DETAIL_NONCOPYABLE_HPP
  12 #define BOOST_ASIO_DETAIL_NONCOPYABLE_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/push_options.hpp>
  19
  20 #include <boost/asio/detail/push_options.hpp>
  21 #include <boost/config.hpp>
  22 #include <boost/noncopyable.hpp>
  23 #include <boost/detail/workaround.hpp>
  24 #include <boost/asio/detail/pop_options.hpp>
  25
  26 namespace boost {
  27 namespace asio {
  28 namespace detail {
  29
  30 #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
  31 // Redefine the noncopyable class for Borland C++ since that compiler does not
  32 // apply the empty base optimisation unless the base class contains a dummy
  33 // char data member.
  34 class noncopyable
  35 {
  36 protected:
  37   noncopyable() {}
  38   ~noncopyable() {}
  39 private:
  40   noncopyable(const noncopyable&);
  41   const noncopyable& operator=(const noncopyable&);
  42   char dummy_;
  43 };
  44 #else
  45 using boost::noncopyable;
  46 #endif
  47
  48 } // namespace detail
  49
  50 using boost::asio::detail::noncopyable;
  51
  52 } // namespace asio
  53 } // namespace boost
  54
  55 #include <boost/asio/detail/pop_options.hpp>
  56
  57 #endif // BOOST_ASIO_DETAIL_NONCOPYABLE_HPP