libstdc++-v3/testsuite/22_locale/conversions/buffer/2.cc

   1 // Copyright (C) 2017-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <locale>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23
  24 void
  25 test01()
  26 {
  27   struct Cvt : std::codecvt<char, char, std::mbstate_t> { };
  28   std::stringstream ss;
  29   std::wbuffer_convert<Cvt, char> cvt(ss.rdbuf());
  30   auto p = ss.std::ios::rdbuf(&cvt);
  31   ss << "hello";
  32   VERIFY( ss.flush().good() );
  33   ss.std::ios::rdbuf(p);
  34 }
  35
  36 int main()
  37 {
  38   test01();
  39 }