Imported Upstream version 1.66.0upstream/1.66.0

1 files changed, 44 insertions, 0 deletions

diff --git a/boost/mp11/detail/config.hpp b/boost/mp11/detail/config.hpp
new file mode 100644
index 0000000000..68413d77cc
--- /dev/null
+++ b/boost/mp11/detail/config.hpp
@@ -0,0 +1,44 @@
+#ifndef BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED
+#define BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED
+
+//  Copyright 2016 Peter Dimov.
+//
+//  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
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+#if defined( BOOST_NO_CXX11_CONSTEXPR )
+
+#  define BOOST_MP11_NO_CONSTEXPR
+
+#elif defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, < 1920 )
+
+#  define BOOST_MP11_NO_CONSTEXPR
+
+#endif
+
+#if defined(__cpp_fold_expressions) && __cpp_fold_expressions >= 201603
+
+#  define BOOST_MP11_HAS_FOLD_EXPRESSIONS
+
+#elif defined(BOOST_CLANG) && defined(__has_cpp_attribute)
+# if __has_cpp_attribute(fallthrough) && __cplusplus >= 201406L // Clang 3.9+ in c++1z mode
+
+#  define BOOST_MP11_HAS_FOLD_EXPRESSIONS
+
+# endif
+#endif
+
+#if defined(__has_builtin)
+# if __has_builtin(__type_pack_element)
+
+#  define BOOST_MP11_HAS_TYPE_PACK_ELEMENT
+
+# endif
+#endif
+
+#endif // #ifndef BOOST_MP11_DETAIL_CONFIG_HPP_INCLUDED