1 //
2 // detail/weak_ptr.hpp
3 // ~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2015 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_WEAK_PTR_HPP
12 #define BOOST_ASIO_DETAIL_WEAK_PTR_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/config.hpp>
19 
20 #if defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
21 # include <memory>
22 #else // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
23 # include <boost/weak_ptr.hpp>
24 #endif // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
25 
26 namespace boost {
27 namespace asio {
28 namespace detail {
29 
30 #if defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
31 using std::weak_ptr;
32 #else // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
33 using boost::weak_ptr;
34 #endif // defined(BOOST_ASIO_HAS_STD_SHARED_PTR)
35 
36 } // namespace detail
37 } // namespace asio
38 } // namespace boost
39 
40 #endif // BOOST_ASIO_DETAIL_WEAK_PTR_HPP
41