re PR c++/27278 (ICE with invalid operator declaration)

	PR c++/27278
	* decl.c (grok_op_properties): Skip operators with invalid args
	when checking for class-type or enum-type args.

	* g++.dg/parse/operator7.C: New test.

From-SVN: r113389

gcc/cp/ChangeLog

+2006-04-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/27278
+	* decl.c (grok_op_properties): Skip operators with invalid args
+	when checking for class-type or enum-type args.
+
 2006-04-29  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	PR c++/27279

gcc/cp/decl.c

@@ -9086,6 +9086,9 @@ grok_op_properties (tree decl, bool complain)
 	      for (p = argtypes; p && p != void_list_node; p = TREE_CHAIN (p))
 		{
 		  tree arg = non_reference (TREE_VALUE (p));
+		  if (arg == error_mark_node)
+		    return;
+
 		  /* IS_AGGR_TYPE, rather than CLASS_TYPE_P, is used
 		     because these checks are performed even on
 		     template functions.  */

gcc/testsuite/ChangeLog

+2006-04-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/27278
+	* g++.dg/parse/operator7.C: New test.
+
 2006-04-29  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	PR c++/11471

gcc/testsuite/g++.dg/parse/operator7.C

+// PR c++/27278
+// { dg-do compile }
+
+int operator+(void,void);  // { dg-error "incomplete type|invalid use" }