libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc

   1 // Copyright (C) 2004-2023 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 // 27.6.1.2.3 basic_istream::operator>>
  19 // @require@ %-*.tst %-*.txt
  20 // @diff@ %-*.tst %-*.txt
  21
  22 // { dg-require-fileio "" }
  23
  24 #include <istream>
  25 #include <fstream>
  26 #include <testsuite_hooks.h>
  27
  28 // filebufs.
  29 void test02()
  30 {
  31   const char name_01[] = "wistream_extractor_other-1.txt"; //read
  32   const char name_02[] = "wistream_extractor_other-2.txt"; //write
  33
  34   std::wfilebuf fbin, fbout;
  35   fbin.open(name_01, std::ios_base::in);
  36   fbout.open(name_02, std::ios_base::out | std::ios_base::trunc);
  37   VERIFY( fbin.is_open() );
  38   VERIFY( fbout.is_open() );
  39
  40   {
  41     std::wistream is(&fbin);
  42     is.unsetf(std::ios_base::skipws);
  43     is >> &fbout;
  44   }
  45
  46   fbout.close();
  47   fbin.close();
  48   VERIFY( !fbin.is_open() );
  49   VERIFY( !fbout.is_open() );
  50 }
  51
  52 int main()
  53 {
  54   test02();
  55   return 0;
  56 }