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1 // Copyright (C) 2004-2018 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 // 27.6.1.3 unformatted input functions
19 // @require@ %-*.tst %-*.txt
20 // @diff@ %-*.tst %-*.txt
22 // { dg-require-fileio "" }
27 #include <testsuite_hooks.h>
29 // istream& ignore(streamsize n)
35 const char filename
[] ="istream_unformatted-1.txt";
36 ios_base::iostate state1
, state2
;
39 ifstrm
.open(filename
);
41 state1
= ifstrm
.rdstate();
42 VERIFY( state1
== ios_base::goodbit
);
43 VERIFY( ifstrm
.peek() == L
'1' );
44 state2
= ifstrm
.rdstate();
45 VERIFY( state1
== state2
);
47 state1
= ifstrm
.rdstate();
49 VERIFY( ifstrm
.gcount() == 1 );
50 state2
= ifstrm
.rdstate();
51 VERIFY( state1
== state2
);
52 VERIFY( ifstrm
.peek() == L
'2' );
54 state1
= ifstrm
.rdstate();
56 VERIFY( ifstrm
.gcount() == 10 );
57 state2
= ifstrm
.rdstate();
58 VERIFY( state1
== state2
);
59 VERIFY( ifstrm
.peek() == L
'1' );
61 state1
= ifstrm
.rdstate();
63 VERIFY( ifstrm
.gcount() == 100 );
64 state2
= ifstrm
.rdstate();
65 VERIFY( state1
== state2
);
66 VERIFY( ifstrm
.peek() == L
'2' );
68 state1
= ifstrm
.rdstate();
70 VERIFY( ifstrm
.gcount() == 1000 );
71 state2
= ifstrm
.rdstate();
72 VERIFY( state1
== state2
);
73 VERIFY( ifstrm
.peek() == L
'1' );
75 state1
= ifstrm
.rdstate();
77 VERIFY( ifstrm
.gcount() == 10000 );
78 state2
= ifstrm
.rdstate();
79 VERIFY( state1
== state2
);
80 VERIFY( ifstrm
.peek() == L
'2' );
82 state1
= ifstrm
.rdstate();
83 ifstrm
.ignore(numeric_limits
<streamsize
>::max());
84 VERIFY( ifstrm
.gcount() == 5389 );
85 state2
= ifstrm
.rdstate();
86 VERIFY( state1
!= state2
);
87 VERIFY( state2
== ios_base::eofbit
);