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1 // Copyright (C) 2017-2021 Free Software Foundation, Inc.
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)
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.
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/>.
18 // { dg-require-fileio "" }
24 #include <testsuite_hooks.h>
30 typedef istreambuf_iterator
<char> in_iterator_type
;
35 ifstream
fbuf("istream_unformatted-1.txt");
37 in_iterator_type
beg(fbuf
);
42 beg
= find(beg
, end
, '1');
47 VERIFY( *beg
== '1' );
50 VERIFY( *beg
== '0' );
55 ifstream
fbuf("istream_unformatted-1.txt");
57 in_iterator_type
beg(fbuf
);
60 beg
= find(beg
, end
, '1');
62 VERIFY( *beg
== '1' );
65 VERIFY( *beg
== '0' );
67 unsigned line_length
= 10;
71 // Try to jump directly to the end through advance.
72 advance(beg
, (found
- 2) * line_length
+ 9);
73 VERIFY( *beg
== '0' );
74 VERIFY( find(beg
, end
, '1') == end
);