From 822b46a3df9cc68728bfa003094cc49068b4042a Mon Sep 17 00:00:00 2001
From: Douglas Gregor <doug.gregor@gmail.com>
Date: Thu, 6 May 2004 17:29:54 +0000
Subject: [PATCH] Complain when compiler can't support result_of

[SVN r22749]
---
 include/boost/utility/result_of.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/boost/utility/result_of.hpp b/include/boost/utility/result_of.hpp
index 9d2185e..5a3ed7c 100644
--- a/include/boost/utility/result_of.hpp
+++ b/include/boost/utility/result_of.hpp
@@ -58,6 +58,8 @@ struct result_of : get_result_of<F, FArgs, (has_result_type<F>::value)> {};
 #include BOOST_PP_ITERATE()
 
 }
-#endif // can't use result_of
+#else
+#  error Your compiler cannot support class template result_of
+#endif
 
 #endif // BOOST_RESULT_OF_HPP