libstdc++-v3/testsuite/27_io/basic_ifstream/open/char/1.cc

   1 // Copyright (C) 2000, 2001, 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 // 27.8.1.7 ifstream member functions
  20 // @require@ %-*.tst %-*.txt
  21 // @diff@ %-*.tst %-*.txt
  22
  23 #include <istream>
  24 #include <fstream>
  25 #include <testsuite_hooks.h>
  26
  27 const char name_01[] = "ifstream_members-1.tst";
  28
  29 // http://gcc.gnu.org/ml/libstdc++/2000-06/msg00136.html
  30 void test01()
  31 {
  32   bool test = true;
  33   std::ifstream ifs1;
  34   ifs1.close();
  35
  36   // false as expected:
  37   VERIFY( !ifs1.is_open() );
  38    // this is now true:
  39   VERIFY( !(ifs1) );
  40
  41   ifs1.open(name_01);
  42   VERIFY( ifs1.is_open() );
  43   // fail bit still true
  44   VERIFY( !(ifs1) );
  45   VERIFY( ifs1.rdstate() == std::ios_base::failbit );
  46
  47   ifs1.close();
  48 }
  49
  50 int main()
  51 {
  52   test01();
  53   return 0;
  54 }
  55
  56
  57