// { dg-do compile }// { dg-options "" }// Copyright (C) 2001 Free Software Foundation, Inc.// Contributed by Nathan Sidwell 21 Mar 2002 <nathan@codesourcery.com>// PR 5507. Overzealous implicit typename warningtemplate<typename _CharT>class __ctype_abstract_base{  typedef int mask;};template<typename _CharT>class ctype : public __ctype_abstract_base<_CharT>{  typedef typename ctype::mask mask;};template<typename _CharT>class ctype2 : public __ctype_abstract_base<_CharT>{  typedef mask mask; // { dg-warning "(implicitly a typename)|(implicit typename)" "" }};