libstdc++-v3/testsuite/25_algorithms/find/istreambuf_iterators/char/2.cc

   1 // 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2019 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 #include <iterator>
  21 #include <fstream>
  22 #include <algorithm>
  23 #include <testsuite_hooks.h>
  24
  25 // { dg-require-fileio "" }
  26
  27 // In the occasion of libstdc++/25482
  28 void test01()
  29 {
  30   using namespace std;
  31
  32   typedef istreambuf_iterator<char> in_iterator_type;
  33
  34   ifstream fbuf("istream_unformatted-1.txt");
  35
  36   in_iterator_type beg(fbuf);
  37   in_iterator_type end;
  38
  39   unsigned found = 0;
  40   for (;;)
  41     {
  42       beg = find(beg, end, '1');
  43       if (beg == end)
  44         break;
  45
  46       ++found;
  47       VERIFY( *beg == '1' );
  48
  49       advance(beg, 9);
  50       VERIFY( *beg == '0' );
  51     }
  52   VERIFY( found == 1500 );
  53 }
  54
  55 int main()
  56 {
  57   test01();
  58   return 0;
  59 }