re PR c++/9278 (Illegal use of typedef to "void")

	PR c++/9278
	* decl.c (grokparms): Do not allow typedef-names in a '(void)'
	parmlist.

	* g++.dg/other/void1.C: New test.

From-SVN: r107508

gcc/cp/ChangeLog

 2005-11-25  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
+	PR c++/9278
+	* decl.c (grokparms): Do not allow typedef-names in a '(void)'
+	parmlist.
+
+2005-11-25  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
 	* typeck2.c (process_init_constructor_union): Remove check for
 	unnamed union members.
 

gcc/cp/decl.c

@@ -8598,6 +8598,7 @@ grokparms (cp_parameter_declarator *first_parm, tree *parms)
       if (VOID_TYPE_P (type))
 	{
 	  if (same_type_p (type, void_type_node)
+	      && DECL_SELF_REFERENCE_P (type)
 	      && !DECL_NAME (decl) && !result && !parm->next && !ellipsis)
 	    /* this is a parmlist of `(void)', which is ok.  */
 	    break;

gcc/testsuite/ChangeLog

+2005-11-25  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/9278
+	* g++.dg/other/void1.C: New test.
+
 2005-11-25  Joseph S. Myers  <joseph@codesourcery.com>
 
 	PR middle-end/24998

gcc/testsuite/g++.dg/other/void1.C

+// PR c++/9278
+// { dg-do compile }
+
+typedef void VOID;
+
+int foo(void);
+int bar(VOID);                // { dg-error "type|invalid use" }
+
+template<int> int foo(void);
+template<int> int bar(VOID);  // { dg-error "type|invalid use" }
+
+struct A
+{
+  int foo(void);
+  int bar(VOID);              // { dg-error "type|invalid use" }
+};