libstdc++-v3/testsuite/22_locale/locale/global_locale_objects/2.cc

   1 // 2000-09-13 Benjamin Kosnik <bkoz@redhat.com>
   2
   3 // Copyright (C) 2000, 2002, 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 22.1.1.5 locale static members [lib.locale.statics]
  22
  23 #include <cwchar> // for mbstate_t
  24 #include <locale>
  25 #include <testsuite_hooks.h>
  26
  27 // Sanity check locale::global(loc) and setlocale.
  28 void test02()
  29 {
  30   using namespace std;
  31   bool test __attribute__((unused)) = true;
  32
  33   const string ph("en_PH");
  34   const string mx("es_MX");
  35   const char* orig = setlocale(LC_ALL, NULL);
  36   const char* testph = setlocale(LC_ALL, ph.c_str());
  37   const char* testmx = setlocale(LC_ALL, mx.c_str());
  38   setlocale(LC_ALL, orig);
  39
  40   // If the underlying locale doesn't support these names, setlocale
  41   // won't be reset. Therefore, disable unless we know these specific
  42   // named locales work.
  43   if (testph && testmx)
  44     {
  45       const locale loc_ph = __gnu_test::try_named_locale(ph.c_str());
  46       const locale loc_mx = __gnu_test::try_named_locale(mx.c_str());
  47
  48       // Use setlocale between two calls to locale("")
  49       const locale loc_env_1 = __gnu_test::try_named_locale("");
  50       setlocale(LC_ALL, ph.c_str());
  51       const locale loc_env_2 = __gnu_test::try_named_locale("");
  52       VERIFY( loc_env_1 == loc_env_2 );
  53
  54       // Change global locale.
  55       locale global_orig = locale::global(loc_mx);
  56       const char* lc_all_mx = setlocale(LC_ALL, NULL);
  57       if (lc_all_mx)
  58         {
  59           VERIFY( mx == lc_all_mx );
  60         }
  61
  62       // Restore global settings.
  63       locale::global(global_orig);
  64     }
  65 }
  66
  67 int main ()
  68 {
  69   test02();
  70   return 0;
  71 }