Imported existing code

libraries/include/boost/variant/detail/cast_storage.hpp

@@ -0,0 +1,48 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/cast_storage.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// 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_VARIANT_DETAIL_CAST_STORAGE_HPP
+#define BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP
+
+#include "boost/config.hpp"
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) function template cast_storage
+//
+// Casts the given storage to the specified type, but with qualification.
+//
+
+template <typename T>
+inline T& cast_storage(
+      void* storage
+      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)
+    )
+{
+    return *static_cast<T*>(storage);
+}
+
+template <typename T>
+inline const T& cast_storage(
+      const void* storage
+      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)
+    )
+{
+    return *static_cast<const T*>(storage);
+}
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_CAST_STORAGE_HPP