1#//////////////////////////////////////////////////////////////////////////////
2#//
3#// (C) Copyright Ion Gaztanaga 2015-2015.
4#// Distributed under the Boost Software License, Version 1.0.
5#// (See accompanying file LICENSE_1_0.txt or copy at
6#// http://www.boost.org/LICENSE_1_0.txt)
7#//
8#// See http://www.boost.org/libs/move for documentation.
9#//
10#//////////////////////////////////////////////////////////////////////////////
11#
12#if defined(_LIBCPP_VERSION)
13 #if defined(__clang__)
14 #define BOOST_MOVE_STD_NS_GCC_DIAGNOSTIC_PUSH
15 #pragma GCC diagnostic push
16 #pragma GCC diagnostic ignored "-Wc++11-extensions"
17 #endif
18 #define BOOST_MOVE_STD_NS_BEG _LIBCPP_BEGIN_NAMESPACE_STD
19 #define BOOST_MOVE_STD_NS_END _LIBCPP_END_NAMESPACE_STD
20#elif defined(BOOST_GNU_STDLIB) && defined(_GLIBCXX_BEGIN_NAMESPACE_VERSION) //GCC >= 4.6
21 #define BOOST_MOVE_STD_NS_BEG namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION
22 #define BOOST_MOVE_STD_NS_END _GLIBCXX_END_NAMESPACE_VERSION } // namespace
23#elif defined(BOOST_GNU_STDLIB) && defined(_GLIBCXX_BEGIN_NAMESPACE) //GCC >= 4.2
24 #define BOOST_MOVE_STD_NS_BEG _GLIBCXX_BEGIN_NAMESPACE(std)
25 #define BOOST_MOVE_STD_NS_END _GLIBCXX_END_NAMESPACE
26#else
27 #define BOOST_MOVE_STD_NS_BEG namespace std{
28 #define BOOST_MOVE_STD_NS_END }
29#endif
30
31

source code of include/boost/move/detail/std_ns_begin.hpp