weak_ptr.hpp 856 B

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  1. //
  2. // detail/weak_ptr.hpp
  3. // ~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2011 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. #ifndef ASIO_DETAIL_WEAK_PTR_HPP
  11. #define ASIO_DETAIL_WEAK_PTR_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include "asio/detail/config.hpp"
  16. #include <boost/version.hpp>
  17. #if defined(_MSC_VER) && (_MSC_VER >= 1600)
  18. # include <memory>
  19. #else
  20. # include <boost/weak_ptr.hpp>
  21. #endif
  22. namespace asio {
  23. namespace detail {
  24. #if defined(_MSC_VER) && (_MSC_VER >= 1600)
  25. using std::weak_ptr;
  26. #else
  27. using boost::weak_ptr;
  28. #endif
  29. } // namespace detail
  30. } // namespace asio
  31. #endif // ASIO_DETAIL_WEAK_PTR_HPP