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

   1 // Copyright (C) 2000-2014 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 // 27.8.1.7 ifstream member functions
  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 const char name_01[] = "ifstream_members-1.tst";
  29
  30 // http://gcc.gnu.org/ml/libstdc++/2000-06/msg00136.html
  31 void test01()
  32 {
  33   bool test __attribute__((unused)) = true;
  34   std::ifstream ifs1;
  35   ifs1.close();
  36
  37   // false as expected:
  38   VERIFY( !ifs1.is_open() );
  39    // this is now true:
  40   VERIFY( !(ifs1) );
  41
  42   ifs1.open(name_01);
  43   VERIFY( ifs1.is_open() );
  44
  45   // As per the resolution of DR 409.
  46   VERIFY( (ifs1) );
  47   VERIFY( ifs1.rdstate() == std::ios_base::goodbit );
  48
  49   ifs1.close();
  50 }
  51
  52 int main()
  53 {
  54   test01();
  55   return 0;
  56 }
  57
  58
  59