re PR c++/44703 ([C++0x] List initialization fail if parameter is typedef name…

re PR c++/44703 ([C++0x] List initialization fail if parameter is typedef name for the std::initializer_list)

	PR c++/44703
	* call.c (is_std_init_list): Look through typedefs.

From-SVN: r161880

gcc/cp/ChangeLog

 2010-07-06  Jason Merrill  <jason@redhat.com>
 
+	PR c++/44703
+	* call.c (is_std_init_list): Look through typedefs.
+
 	PR c++/44778
 	* init.c (build_offset_ref): If scope isn't dependent,
 	don't exit early.  Look at TYPE_MAIN_VARIANT.

gcc/cp/call.c

@@ -7953,6 +7953,10 @@ initialize_reference (tree type, tree expr, tree decl, tree *cleanup,
 bool
 is_std_init_list (tree type)
 {
+  /* Look through typedefs.  */
+  if (!TYPE_P (type))
+    return false;
+  type = TYPE_MAIN_VARIANT (type);
   return (CLASS_TYPE_P (type)
 	  && CP_TYPE_CONTEXT (type) == std_node
 	  && strcmp (TYPE_NAME_STRING (type), "initializer_list") == 0);

gcc/testsuite/ChangeLog

 2010-07-06  Jason Merrill  <jason@redhat.com>
 
+	PR c++/44703
+	* g++.dg/cpp0x/initlist41.C: New.
+
 	PR c++/44778
 	* g++.dg/template/ptrmem22.C: New.
 

gcc/testsuite/g++.dg/cpp0x/initlist41.C

+// PR c++/44703
+// { dg-options -std=c++0x }
+
+#include <initializer_list>
+
+typedef std::initializer_list<int> type ;
+void f(type) {}
+
+int main()
+{
+//  error: could not convert '{1, 2, 3}' to 'type'
+    f({1,2,3}) ;
+}
+