libstdc++-v3/testsuite/27_io/basic_filebuf/sputbackc/char/9425.cc

   1 // 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002, 2003 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 27.8.1.4 Overridden virtual functions
  22
  23 // { dg-require-fileio "" }
  24
  25 #include <fstream>
  26 #include <testsuite_hooks.h>
  27
  28 const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
  29
  30 // libstdc++/9439, libstdc++/9425
  31 // basic_filebuf<>::pbackfail calls basic_filebuf<>::seekoff, but
  32 // fails to check the return value
  33 void test09()
  34 {
  35   using namespace std;
  36   bool test __attribute__((unused)) = true;
  37
  38   filebuf fbuf;
  39   fbuf.open(name_01, ios_base::in);
  40   filebuf::int_type r = fbuf.sputbackc('a');
  41   fbuf.close();
  42
  43   VERIFY( r == filebuf::traits_type::eof() );
  44 }
  45
  46 int main()
  47 {
  48   test09();
  49   return 0;
  50 }