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

   1 // 1999-07-22 bkoz
   2
   3 // Copyright (C) 1994-2024 Free Software Foundation, Inc.
   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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 27.6.2.7 standard basic_ostream manipulators
  21
  22 #include <ostream>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test01(void)
  27 {
  28   const std::string str01(" santa barbara ");
  29   std::string str04;
  30   std::string str05;
  31
  32   std::ostringstream oss01(str01);
  33   std::ostringstream oss02;
  34
  35   // template<_CharT, _Traits>
  36   //  basic_ostream<_CharT, _Traits>& flush(basic_ostream<_Char, _Traits>& os)
  37   oss01.flush();
  38   str04 = oss01.str();
  39   VERIFY( str04.size() == str01.size() );
  40
  41   oss02.flush();
  42   str05 = oss02.str();
  43   VERIFY( str05.size() == 0 );
  44 }
  45
  46 int main()
  47 {
  48   test01();
  49   return 0;
  50 }