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

   1 // Copyright (C) 2003-2023 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 // 27.8.1.4 Overridden virtual functions
  19
  20 #include <fstream>
  21 #include <testsuite_hooks.h>
  22
  23 void test03()
  24 {
  25   using namespace std;
  26
  27   const char* name = "tmp_seekoff_3";
  28
  29   wfilebuf fb;
  30
  31   fb.open(name, ios_base::out);
  32   fb.sputc(0xf001);
  33
  34   try
  35     {
  36       // seekoff should flush the output sequence, which will fail
  37       // if the output buffer contains illegal characters.
  38       fb.pubseekoff(0, ios_base::cur);
  39       VERIFY( false );
  40     }
  41   catch (std::exception&)
  42     {
  43     }
  44 }
  45
  46 int main()
  47 {
  48   test03();
  49   return 0;
  50 }