DR 686 PR c++/47450

	DR 686
	PR c++/47450
	* parser.c (cp_parser_new_expression): Set
	type_definition_forbidden_message.

From-SVN: r182975

gcc/cp/ChangeLog

 2012-01-06  Jason Merrill  <jason@redhat.com>
 
+	DR 686
+	PR c++/47450
+	* parser.c (cp_parser_new_expression): Set
+	type_definition_forbidden_message.
+
 	PR c++/6057
 	PR c++/48051
 	PR c++/50855

gcc/cp/parser.c

@@ -6668,10 +6668,17 @@ cp_parser_new_expression (cp_parser* parser)
   if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_PAREN))
     {
       cp_token *token;
+      const char *saved_message = parser->type_definition_forbidden_message;
+
       /* Consume the `('.  */
       cp_lexer_consume_token (parser->lexer);
+
       /* Parse the type-id.  */
+      parser->type_definition_forbidden_message
+	= G_("types may not be defined in a new-expression");
       type = cp_parser_type_id (parser);
+      parser->type_definition_forbidden_message = saved_message;
+
       /* Look for the closing `)'.  */
       cp_parser_require (parser, CPP_CLOSE_PAREN, RT_CLOSE_PAREN);
       token = cp_lexer_peek_token (parser->lexer);

gcc/testsuite/ChangeLog

+2012-01-06  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/parse/new5.C: New.
+
 2012-01-06  Patrick Marlier  <patrick.marlier@gmail.com>
 
 	PR testsuite/51655

gcc/testsuite/g++.dg/parse/new5.C

+// PR c++/47450
+
+struct A { };
+A* ap = new(struct: A { });	// { dg-error "types may not be defined" }