Index: boost/concept_check.hpp
===================================================================
--- boost/concept_check.hpp	(revision 63192)
+++ boost/concept_check.hpp	(working copy)
@@ -1015,11 +1015,11 @@
         c.swap(c);
       }
 
-      void const_constraints(const C& c) {
-        ci = c.begin();
-        ci = c.end();
-        n = c.size();
-        b = c.empty();
+      void const_constraints(const C& cc) {
+        ci = cc.begin();
+        ci = cc.end();
+        n = cc.size();
+        b = cc.empty();
       }
 
     private: