libstdc++-v3/testsuite/22_locale/collate_byname/requirements/base_classes.cc

   1 // { dg-do compile }
   2 // 2001-08-15  Benjamin Kosnik  <bkoz@redhat.com>
   3
   4 // Copyright (C) 2001-2013 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 22.2.4 The collate category
  22
  23 #include <locale>
  24
  25 void test01()
  26 {
  27   // Check for required base class.
  28   typedef std::collate_byname<char> test_type;
  29   typedef std::collate<char> base_type;
  30   const test_type& obj = std::use_facet<test_type>(std::locale::classic());
  31   const base_type* base __attribute__((unused)) = &obj;
  32 }