libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/4.cc

   1 // 2006-10-01  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2017 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // { dg-require-fileio "" }
  21
  22 #include <fstream>
  23 #include <testsuite_hooks.h>
  24
  25 // DR 596.
  26 void test01()
  27 {
  28   const char* name = "tmp_file4";
  29
  30   std::fstream scratch_file;
  31
  32   scratch_file.open(name, std::ios_base::app);
  33   VERIFY( scratch_file );
  34   VERIFY( scratch_file.is_open() );
  35   scratch_file.close();
  36
  37   scratch_file.open(name, std::ios_base::in | std::ios_base::out
  38                     | std::ios_base::app);
  39   VERIFY( scratch_file );
  40   VERIFY( scratch_file.is_open() );
  41   scratch_file.close();
  42
  43   scratch_file.open(name, std::ios_base::in | std::ios_base::app);
  44   VERIFY( scratch_file );
  45   VERIFY( scratch_file.is_open() );
  46   scratch_file.close();
  47
  48   scratch_file.open(name, std::ios_base::app | std::ios_base::binary);
  49   VERIFY( scratch_file );
  50   VERIFY( scratch_file.is_open() );
  51   scratch_file.close();
  52
  53   scratch_file.open(name, std::ios_base::in | std::ios_base::out
  54                     | std::ios_base::app | std::ios_base::binary);
  55   VERIFY( scratch_file );
  56   VERIFY( scratch_file.is_open() );
  57   scratch_file.close();
  58
  59   scratch_file.open(name, std::ios_base::in | std::ios_base::app
  60                     | std::ios_base::binary);
  61   VERIFY( scratch_file );
  62   VERIFY( scratch_file.is_open() );
  63   scratch_file.close();
  64 }
  65
  66 int
  67 main()
  68 {
  69   test01();
  70   return 0;
  71 }