libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/3.cc

   1 // Copyright (C) 2003 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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // 27.8.1.4 Overridden virtual functions
  20
  21 #include <fstream>
  22 #include <testsuite_hooks.h>
  23
  24 void test03()
  25 {
  26   using namespace std;
  27
  28   bool test __attribute__((unused)) = true;
  29   const char* name = "tmp_seekoff_3";
  30
  31   wfilebuf fb;
  32
  33   fb.open(name, ios_base::out);
  34   fb.sputc(0xf001);
  35
  36   // seekoff should flush the output sequence, which will fail
  37   // if the output buffer contains illegal characters.
  38   streampos ret = fb.pubseekoff(0, ios_base::cur);
  39   VERIFY( ret == streampos(streamoff(-1)) );
  40 }
  41
  42 int main()
  43 {
  44   test03();
  45   return 0;
  46 }