libstdc++-v3/testsuite/27_io/basic_ostream/flush/wchar_t/1.cc

   1 // Copyright (C) 2005-2024 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 // 27.6.2.7 standard basic_ostream manipulators
  19
  20 #include <ostream>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23
  24 void test01(void)
  25 {
  26   const std::wstring str01(L" santa barbara ");
  27   std::wstring str04;
  28   std::wstring str05;
  29
  30   std::wostringstream oss01(str01);
  31   std::wostringstream oss02;
  32
  33   // template<_CharT, _Traits>
  34   //  basic_ostream<_CharT, _Traits>& flush(basic_ostream<_Char, _Traits>& os)
  35   oss01.flush();
  36   str04 = oss01.str();
  37   VERIFY( str04.size() == str01.size() );
  38
  39   oss02.flush();
  40   str05 = oss02.str();
  41   VERIFY( str05.size() == 0 );
  42 }
  43
  44 int main()
  45 {
  46   test01();
  47   return 0;
  48 }