re PR c++/32054 (Storage classes on anonymous unions in classes)

/cp
2012-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/32054
	* parser.c (cp_parser_member_declaration): A storage class is not
	allowed in a declaration of an anonymous aggregate in a class scope.

/testsuite
2012-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/32054
	* g++.dg/other/anon-union3.C: New.

From-SVN: r187902

gcc/cp/ChangeLog

+2012-05-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/32054
+	* parser.c (cp_parser_member_declaration): A storage class is not
+	allowed in a declaration of an anonymous aggregate in a class scope.
+
 2012-05-24  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR obj-c++/53441

gcc/cp/parser.c

@@ -18910,6 +18910,12 @@ cp_parser_member_declaration (cp_parser* parser)
 	     particular type), as opposed to a nested class.  */
 	  else if (ANON_AGGR_TYPE_P (type))
 	    {
+	      /* C++11 9.5/6.  */
+	      if (decl_specifiers.storage_class != sc_none)
+		error_at (decl_spec_token_start->location,
+			  "a storage class on an anonymous aggregate "
+			  "in class scope is not allowed");
+
 	      /* Remove constructors and such from TYPE, now that we
 		 know it is an anonymous aggregate.  */
 	      fixup_anonymous_aggr (type);

gcc/testsuite/ChangeLog

+2012-05-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/32054
+	* g++.dg/other/anon-union3.C: New.
+
 2012-05-25  Ian Lance Taylor  <iant@google.com>
 
 	* gcc.dg/split-6.c: New test.

gcc/testsuite/g++.dg/other/anon-union3.C

+// PR c++/32054
+
+class C
+{
+  auto union      // { dg-error "storage class" "" { target c++98 } }
+    {
+      int a;
+    };            // { dg-error "multiple|specified" "" { target c++11 } }
+  register union  // { dg-error "storage class" }
+    {
+      int b;
+    };
+  static union    // { dg-error "storage class" }
+    {
+      int c;
+    };
+  extern union    // { dg-error "storage class" }
+    {
+      int d;
+    };
+  mutable union   // { dg-error "storage class" }
+    {
+      int e;
+    };
+};