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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_istream/ignore/char/2.cc
1 // Copyright (C) 2004 Free Software Foundation
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 2, 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 COPYING. If not, write to the Free
16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 // 27.6.1.3 unformatted input functions
25 #include <testsuite_hooks.h>
29 string
prepare(string::size_type len
, unsigned nchunks
, char delim
)
32 for (unsigned i
= 0; i
< nchunks
; ++i
)
34 for (string::size_type j
= 0; j
< len
; ++j
)
35 ret
.push_back('a' + rand() % 26);
42 void check(istream
& stream
, const string
& str
, unsigned nchunks
, char delim
)
44 bool test
__attribute__((unused
)) = true;
46 string::size_type index
= 0, index_new
= 0;
49 while (stream
.ignore(numeric_limits
<streamsize
>::max(), delim
).good())
51 index_new
= str
.find(delim
, index
);
52 VERIFY( static_cast<string::size_type
>(stream
.gcount()) ==
53 index_new
- index
+ 1 );
54 index
= index_new
+ 1;
57 VERIFY( stream
.gcount() == 0 );
58 VERIFY( !stream
.fail() );
59 VERIFY( n
== nchunks
);
64 const char filename
[] = "istream_ignore.txt";
66 const char delim
= '|';
67 const unsigned nchunks
= 10;
68 const string data
= prepare(555, nchunks
, delim
);
71 ofstrm
.open(filename
);
72 ofstrm
.write(data
.data(), data
.size());
76 ifstrm
.open(filename
);
77 check(ifstrm
, data
, nchunks
, delim
);