N3757

[SVN r85538]

include/boost/exception/N3757.hpp

@@ -0,0 +1,46 @@
+//Copyright (c) 2006-2013 Emil Dotchevski and Reverge Studios, Inc.
+
+//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 UUID_9011016A11A711E3B46CD9FA6088709B
+#define UUID_9011016A11A711E3B46CD9FA6088709B
+#if (__GNUC__*100+__GNUC_MINOR__>301) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma GCC system_header
+#endif
+#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma warning(push,1)
+#endif
+
+#include <boost/exception/info.hpp>
+#include <boost/exception/get_error_info.hpp>
+
+namespace
+boost
+    {
+    //Here we're using the boost::error_info machinery to store the info in the exception
+    //object. Within the context of N3757, this is strictly an implementation detail.
+
+    template <class Tag>
+    inline
+    void
+    exception::
+    set( typename Tag::type const & v )
+        {
+        exception_detail::set_info(*this,error_info<Tag,typename Tag::type>(v));
+        }
+
+    template <class Tag>
+    inline
+    typename Tag::type const *
+    exception::
+    get() const
+        {
+        return get_error_info<error_info<Tag,typename Tag::type> >(*this);
+        }
+    }
+
+#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
+#pragma warning(pop)
+#endif
+#endif