libstdc++-v3/testsuite/22_locale/global_templates/1.cc

   1 // 2000-09-11 Benjamin Kosnik <bkoz@redhat.com>
   2
   3 // Copyright (C) 2000 Free Software Foundation
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 22.1.2 locale globals [lib.locale.global.templates]
  22
  23 #include <cwchar> // for mbstate_t
  24 #include <locale>
  25 #include <testsuite_hooks.h>
  26
  27 typedef std::codecvt<char, char, std::mbstate_t> ccodecvt;
  28
  29 class gnu_codecvt: public ccodecvt { };
  30
  31 void test01()
  32 {
  33   using namespace std;
  34
  35   bool test __attribute__((unused)) = true;
  36
  37   // construct a locale object with the C facet
  38   const locale&         cloc = locale::classic();
  39   // sanity check the constructed locale has the normal facet
  40   VERIFY( has_facet<ccodecvt>(cloc) );
  41
  42   // construct a locale object with the specialized facet.
  43   locale                loc(locale::classic(), new gnu_codecvt);
  44   // sanity check the constructed locale has the specialized facet.
  45   VERIFY( has_facet<gnu_codecvt>(loc) );
  46
  47   try
  48     { const ccodecvt& cvt01 __attribute__((unused)) = use_facet<ccodecvt>(cloc); }
  49   catch(...)
  50     { VERIFY( false ); }
  51
  52   try
  53     { const gnu_codecvt& cvt02 __attribute__((unused)) = use_facet<gnu_codecvt>(loc); }
  54   catch(...)
  55     { VERIFY( false ); }
  56
  57   try
  58     { const ccodecvt& cvt03 __attribute__((unused)) = use_facet<gnu_codecvt>(cloc); }
  59   catch(bad_cast& obj)
  60     { VERIFY( true ); }
  61   catch(...)
  62     { VERIFY( false ); }
  63 }
  64
  65 int main ()
  66 {
  67   test01();
  68
  69   return 0;
  70 }