re PR c++/14181 (Cryptic error message for code that compiled without warnings in 3.3.x)

	PR c++/14181
	* parser.c (cp_parser_new_expression): Parse an ill-formed
	direct-new-declarator after a parenthesized type-id to emit good
	diagnostic.

From-SVN: r78067

gcc/cp/ChangeLog

+2004-02-19  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+	PR c++/14181
+	* parser.c (cp_parser_new_expression): Parse an ill-formed 
+	direct-new-declarator after a parenthesized type-id to emit good
+	diagnostic.
+
 2004-02-18  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* cp-tree.def, cvt.c: Update copyright.

gcc/cp/parser.c

@@ -4531,6 +4531,15 @@ cp_parser_new_expression (cp_parser* parser)
       type = cp_parser_type_id (parser);
       /* Look for the closing `)'.  */
       cp_parser_require (parser, CPP_CLOSE_PAREN, "`)'");
+      /* There should not be a direct-new-declarator in this production, 
+         but GCC used to allowed this, so we check and emit a sensible error
+	 message for this case.  */
+      if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_SQUARE))
+	{
+	  error ("array bound forbidden after parenthesized type-id");
+	  inform ("try removing the parentheses around the type-id");
+	  cp_parser_direct_new_declarator (parser);
+	}
     }
   /* Otherwise, there must be a new-type-id.  */
   else