Squashed 'third_party/boostorg/concept_check/' content from commit ed0a0eb
Change-Id: Ib7230965334f9501601efc300242efde8352a380
git-subtree-dir: third_party/boostorg/concept_check
git-subtree-split: ed0a0ebd72f778cfa4931e0538ea34c28db3a42b
diff --git a/include/boost/concept/detail/backward_compatibility.hpp b/include/boost/concept/detail/backward_compatibility.hpp
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+// Copyright David Abrahams 2009. 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)
+#ifndef BOOST_CONCEPT_BACKWARD_COMPATIBILITY_DWA200968_HPP
+# define BOOST_CONCEPT_BACKWARD_COMPATIBILITY_DWA200968_HPP
+
+namespace boost
+{
+ namespace concepts {}
+
+# if defined(BOOST_HAS_CONCEPTS) && !defined(BOOST_CONCEPT_NO_BACKWARD_KEYWORD)
+ namespace concept = concepts;
+# endif
+} // namespace boost::concept
+
+#endif // BOOST_CONCEPT_BACKWARD_COMPATIBILITY_DWA200968_HPP