re PR c++/17570 (Extension to incorporate default parameters in signature of…

re PR c++/17570 (Extension to incorporate default parameters in signature of templates breaks valid program)

2009-04-16  Andrew Pinski  <pinskia@gmail.com>

        PR C++/17570
        * g++.dg/template/defarg11.C: New test.

From-SVN: r146206

gcc/testsuite/ChangeLog

 2009-04-16  Andrew Pinski  <pinskia@gmail.com>
 
+	PR C++/17570
+	* g++.dg/template/defarg11.C: New test.
+
+2009-04-16  Andrew Pinski  <pinskia@gmail.com>
+
 	PR C++/28766
 	* g++.dg/ext/complit11.C: New testcase.
 

gcc/testsuite/g++.dg/template/defarg11.C

+// { dg-do compile }
+
+// We used to reject this code as the extension
+// for default arguments being accepted as less the
+// needed template arguments.
+
+
+template<typename> struct match { }; 
+ 
+template<template<typename> class t,typename T>  
+struct match<t<T> > { typedef int type; }; 
+ 
+template<template<typename,typename> class t,typename T0,typename T1> 
+struct match<t<T0,T1> > { typedef int type; }; 
+ 
+template<typename,typename =void> struct other { }; 
+ 
+typedef match<other<void,void> >::type type;