From e17936284b06ed33c34a08782863ebf522ab6a1f Mon Sep 17 00:00:00 2001
From: Jeremy Siek <jeremy.siek@gmail.com>
Date: Tue, 27 Jan 2004 18:33:36 +0000
Subject: [PATCH] added ignore_unused_variable_warning

[SVN r22008]
---
 include/boost/iterator/iterator_concepts.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/boost/iterator/iterator_concepts.hpp b/include/boost/iterator/iterator_concepts.hpp
index 50e5546..26a23c9 100644
--- a/include/boost/iterator/iterator_concepts.hpp
+++ b/include/boost/iterator/iterator_concepts.hpp
@@ -105,6 +105,7 @@ namespace boost_concepts {
       void constraints()
       {
         const value_type& r = *i;
+        boost::ignore_unused_variable_warning(r);
       }
     Iterator i;
   };