re PR c++/57092 (Using decltype of function pointer type to define a data member…

re PR c++/57092 (Using decltype of function pointer type to define a data member causes compiler crash)

/cp
2013-05-01  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57092
	* semantics.c (finish_decltype_type): Handle instantiated template
	non-type arguments.

/testsuite
2013-05-01  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57092
	* g++.dg/cpp0x/decltype53.C: New.

From-SVN: r198487

gcc/cp/ChangeLog

+2013-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/57092
+	* semantics.c (finish_decltype_type): Handle instantiated template
+	non-type arguments.
+
 2013-04-28  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/56450

gcc/cp/semantics.c

@@ -5416,8 +5416,9 @@ finish_decltype_type (tree expr, bool id_expression_or_member_access_p,
           break;
 
         default:
-	  gcc_unreachable ();
-          return error_mark_node;
+	  /* Handle instantiated template non-type arguments.  */
+	  type = TREE_TYPE (expr);
+          break;
         }
     }
   else

gcc/testsuite/ChangeLog

+2013-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/57092
+	* g++.dg/cpp0x/decltype53.C: New.
+
 2013-04-30  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/57071

gcc/testsuite/g++.dg/cpp0x/decltype53.C

+// PR c++/57092
+// { dg-do compile { target c++11 } }
+
+template <void (*F)(int)>
+class B {
+  decltype(F) v;
+};
+
+void foo(int) {}
+
+B<foo> o;