old-autovect-branch/libstdc++-v3/testsuite/27_io/basic_istream/ignore/char/7220.cc

   1 // 1999-08-11 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation
   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 // 27.6.1.3 unformatted input functions
  22
  23 #include <istream>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 // libstdc++/70220
  28 void
  29 test10()
  30 {
  31   using namespace std;
  32   bool test __attribute__((unused)) = true;
  33   typedef string string_type;
  34   typedef stringbuf stringbuf_type;
  35   typedef istream istream_type;
  36
  37   streamsize n;
  38   string_type  input("abcdefg\n");
  39   stringbuf_type sbuf(input);
  40   istream_type  istr(&sbuf);
  41
  42   istr.ignore(0);
  43   if (istr.gcount() != 0)
  44     test = false;
  45   VERIFY( test );
  46
  47   istr.ignore(0, 'b');
  48   if (istr.gcount() != 0)
  49     test = false;
  50   VERIFY( test );
  51
  52   istr.ignore();        // Advance to next position.
  53   istr.ignore(0, 'b');
  54   if ((n=istr.gcount()) != 0)
  55     test = false;
  56   VERIFY( test );
  57
  58   if (istr.peek() != 'b')
  59     test = false;
  60   VERIFY( test );
  61 }
  62
  63 int
  64 main()
  65 {
  66   test10();
  67   return 0;
  68 }