libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-4.cc

   1 // { dg-require-namedlocale "en_US.ISO8859-1" }
   2 // { dg-require-namedlocale "fr_FR.ISO8859-15" }
   3
   4 // Copyright (C) 2003-2024 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 // 27.8.1.4 Overridden virtual functions
  22
  23 #include <fstream>
  24 #include <locale>
  25 #include <testsuite_hooks.h>
  26
  27 class Cvt : public std::codecvt<char, char, std::mbstate_t>
  28 {
  29 protected:
  30   int do_encoding() const throw()
  31   { return -1; }
  32
  33   bool do_always_noconv() const throw()
  34   { return false; }
  35 };
  36
  37 // libstdc++/13171
  38 void test01()
  39 {
  40   using namespace std;
  41
  42   filebuf fb;
  43   fb.pubimbue(locale(locale(ISO_8859(1,en_US)), new Cvt));
  44   fb.open("tmp_13171-4", ios_base::out);
  45   fb.pubimbue(locale(ISO_8859(15,fr_FR)));
  46   fb.sputc('N');
  47   fb.pubsync();
  48   fb.close();
  49 }
  50
  51 int main()
  52 {
  53   test01();
  54   return 0;
  55 }