libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc

   1 // Copyright (C) 2017-2018 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 // { dg-require-fileio "" }
  19
  20 // PR libstdc++/53984
  21
  22 #include <fstream>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test01()
  27 {
  28   std::ifstream in(".");
  29   if (in)
  30   {
  31     char c;
  32     if (in.get(c))
  33     {
  34       // Reading a directory doesn't produce an error on this target
  35       // so the formatted input functions below wouldn't fail anyway
  36       // (see PR libstdc++/81808).
  37       return;
  38     }
  39     int x;
  40     in.clear();
  41     // Formatted input function should set badbit, but not throw:
  42     in >> x;
  43     VERIFY( in.bad() );
  44
  45     in.clear();
  46     in.exceptions(std::ios::badbit);
  47     try
  48     {
  49       // Formatted input function should set badbit, and throw:
  50       in >> x;
  51       VERIFY( false );
  52     }
  53     catch (const std::exception&)
  54     {
  55       VERIFY( in.bad() );
  56     }
  57   }
  58 }
  59
  60 int
  61 main()
  62 {
  63   test01();
  64 }