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1 // Copyright (C) 2004-2021 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 // 21.3.7.9 inserters and extractors
20 // { dg-require-fileio "" }
26 #include <testsuite_hooks.h>
30 string
prepare(string::size_type len
, unsigned nchunks
, char delim
)
33 for (unsigned i
= 0; i
< nchunks
; ++i
)
35 for (string::size_type j
= 0; j
< len
; ++j
)
36 ret
.push_back('a' + rand() % 26);
43 void check(istream
& stream
, const string
& str
, unsigned nchunks
, char delim
)
46 string::size_type index
= 0, index_new
= 0;
49 while (getline(stream
, chunk
, delim
))
51 index_new
= str
.find(delim
, index
);
52 VERIFY( !str
.compare(index
, index_new
- index
, chunk
) );
53 index
= index_new
+ 1;
56 VERIFY( stream
.eof() );
57 VERIFY( n
== nchunks
);
60 // istream& getline(istream&, string&, char)
63 const char filename
[] = "inserters_extractors-2.txt";
65 const char delim
= '|';
66 const unsigned nchunks
= 10;
67 const string data
= prepare(777, nchunks
, delim
);
70 ofstrm
.open(filename
);
71 ofstrm
.write(data
.data(), data
.size());
75 ifstrm
.open(filename
);
76 check(ifstrm
, data
, nchunks
, delim
);