re PR c++/55680 ([C++11] Member specialization with lambda is rejected)

	PR c++/55680
	* pt.c (maybe_process_partial_specialization): A lambda
	isn't what's being specialized.

From-SVN: r196042

gcc/cp/ChangeLog

 2013-02-13  Jason Merrill  <jason@redhat.com>
 
+	PR c++/55680
+	* pt.c (maybe_process_partial_specialization): A lambda
+	isn't what's being specialized.
+
 	PR c++/55710
 	* semantics.c (maybe_add_lambda_conv_op): Mark static thunk
 	TREE_USED.

gcc/cp/pt.c

@@ -802,6 +802,11 @@ maybe_process_partial_specialization (tree type)
   if (type == error_mark_node)
     return error_mark_node;
 
+  /* A lambda that appears in specialization context is not itself a
+     specialization.  */
+  if (CLASS_TYPE_P (type) && CLASSTYPE_LAMBDA_EXPR (type))
+    return type;
+
   if (TREE_CODE (type) == BOUND_TEMPLATE_TEMPLATE_PARM)
     {
       error ("name of class shadows template template parameter %qD",

gcc/testsuite/g++.dg/cpp0x/lambda/lambda-template8.C

+// PR c++/55680
+// { dg-do compile { target c++11 } }
+
+template <class T> struct X {
+    static void (* code ) ();
+};
+template <> void (* X<int>::code ) () = [](){};