re PR c++/7266 (pedantic segfaults on missing typename)

	PR c++/7266
cp:
	* decl.c (grokdeclarator): Check that TREE_OPERAND 0 of a
	SCOPE_REF is not null before dereferencing it.
testsuite:
	* g++.dg/template/typename3.C: New test.

From-SVN: r58540

gcc/cp/ChangeLog

+2002-10-25  Zack Weinberg  <zack@codesourcery.com>
+
+	PR c++/7266
+	* decl.c (grokdeclarator): Check that TREE_OPERAND 0 of a
+	SCOPE_REF is not null before dereferencing it.
+
 2002-10-25  Mark Mitchell  <mark@codesourcery.com>
 
 	* class.c (build_vtbl_initializer): Don't use build_vtable_entry.
@@ -8,7 +14,7 @@
 	* decl.c (duplicate_decls): Copy it.
 	* method.c (make_thunk): Simplify, and add thunks to DECL_THUNKS.
 	* semantics.c (emit_associated_thunks): Simplify.
-	
+
 2002-10-24  David Edelsohn  <edelsohn@gnu.org>
 
 	PR c++/7228

gcc/cp/decl.c

@@ -11241,8 +11241,9 @@ grokdeclarator (declarator, declspecs, decl_context, initialized, attrlist)
 	      pop_decl_namespace ();
 	    else if (friendp && (TREE_COMPLEXITY (declarator) < 2))
 	      /* Don't fall out into global scope. Hides real bug? --eichin */ ;
-	    else if (! IS_AGGR_TYPE_CODE
-		     (TREE_CODE (TREE_OPERAND (declarator, 0))))
+	    else if (!TREE_OPERAND (declarator, 0)
+		     || !IS_AGGR_TYPE_CODE
+		          (TREE_CODE (TREE_OPERAND (declarator, 0))))
 	      ;
 	    else if (TREE_COMPLEXITY (declarator) == current_class_depth)
 	      {

gcc/testsuite/ChangeLog

+2002-10-25  Zack Weinberg  <zack@codesourcery.com>
+
+	* g++.dg/template/typename3.C: New test.
+
 2002-10-25  Mark Mitchell  <mark@codesourcery.com>
 
 	* g++.dg/abi/vthunk2.C: New test.
@@ -27,7 +31,7 @@
 
 	PR c++/7679
 	* g++.dg/parse/inline1.C: New test.
-	
+
 2002-10-23  Richard Henderson  <rth@redhat.com>
 
 	* g++.dg/inherit/thunk1.C: Enable for x86_64.

gcc/testsuite/g++.dg/template/typename3.C

+// { dg-do compile }
+// crash test - PR 7266
+
+template <class A>
+struct B {
+ typedef A::C::D E;  // { dg-error "no type|parse error" }
+};