libstdc++-v3/testsuite/22_locale/codecvt/encoding/char/1.cc

   1 // 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
   2
   3 // Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
   4 // Free Software Foundation
   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 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
  22
  23 #include <locale>
  24 #include <cstring>
  25 #include <testsuite_hooks.h>
  26
  27 // Required instantiation, degenerate conversion.
  28 // codecvt<char, char, mbstate_t>
  29 void test01()
  30 {
  31   using namespace std;
  32   typedef codecvt_base::result                  result;
  33   typedef codecvt<char, char, mbstate_t>        c_codecvt;
  34
  35   bool test __attribute__((unused)) = true;
  36   int                   size = 25;
  37   char*                 c_arr = new char[size];
  38   char*                 c_ref = new char[size];
  39
  40   locale                loc = locale::classic();
  41   const c_codecvt*      cvt = &use_facet<c_codecvt>(loc);
  42
  43   // According to the resolution of DR19 (see also libstd++/9168), in
  44   // case of degenerate conversion ('noconv'), "there are no changes to
  45   // the values in [to, to_limit)."
  46   memset(c_ref, 'X', size);
  47
  48   int i = cvt->encoding();
  49   VERIFY( i == 1 );
  50
  51   delete [] c_arr;
  52   delete [] c_ref;
  53 }
  54
  55 int main ()
  56 {
  57   test01();
  58   return 0;
  59 }