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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2014-2014. 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)
+//
+// See http://www.boost.org/libs/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_DETAIL_STD_FWD_HPP
+#define BOOST_CONTAINER_DETAIL_STD_FWD_HPP
+
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+// Standard predeclarations
+//////////////////////////////////////////////////////////////////////////////
+
+#if defined(__clang__) && defined(_LIBCPP_VERSION)
+ #define BOOST_CONTAINER_CLANG_INLINE_STD_NS
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wc++11-extensions"
+ #define BOOST_CONTAINER_STD_NS_BEG _LIBCPP_BEGIN_NAMESPACE_STD
+ #define BOOST_CONTAINER_STD_NS_END _LIBCPP_END_NAMESPACE_STD
+#else
+ #define BOOST_CONTAINER_STD_NS_BEG namespace std{
+ #define BOOST_CONTAINER_STD_NS_END }
+#endif
+
+BOOST_CONTAINER_STD_NS_BEG
+
+template<class T>
+class allocator;
+
+template<class T>
+struct less;
+
+template<class T1, class T2>
+struct pair;
+
+template<class T>
+struct char_traits;
+
+struct input_iterator_tag;
+struct forward_iterator_tag;
+struct bidirectional_iterator_tag;
+struct random_access_iterator_tag;
+
+BOOST_CONTAINER_STD_NS_END
+
+#ifdef BOOST_CONTAINER_CLANG_INLINE_STD_NS
+ #pragma GCC diagnostic pop
+ #undef BOOST_CONTAINER_CLANG_INLINE_STD_NS
+#endif //BOOST_CONTAINER_CLANG_INLINE_STD_NS
+
+#endif //#ifndef BOOST_CONTAINER_DETAIL_STD_FWD_HPP