2 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
4 // This file is part of the GNU ISO C++ Library. This library is free
5 // software; you can redistribute it and/or modify it under the
6 // terms of the GNU General Public License as published by the
7 // Free Software Foundation; either version 3, or (at your option)
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License along
16 // with this library; see the file COPYING3. If not see
17 // <http://www.gnu.org/licenses/>.
21 // NB: This file is predicated on sstreams, ostreams
22 // working, not to mention other major details like char_traits, and
23 // all of the string_view class.
25 // { dg-options "-std=gnu++17" }
26 // { dg-require-fileio "" }
28 #include <string_view>
32 #include <testsuite_hooks.h>
34 // testing basic_filebuf::xsputn via stress testing with large string_views
35 // based on a bug report libstdc++ 9
38 test05(std::size_t size
)
42 const char filename
[] = "inserters_extractors-2.txt";
43 const char fillc
= 'f';
44 std::ofstream
ofs(filename
);
45 std::string
str(size
, fillc
);
46 std::string_view strv
{str
};
49 VERIFY( str
.size() == size
);
53 ofs
<< str
<< std::endl
;
57 ofs
<< str
<< std::endl
;
61 VERIFY( str
.size() == size
);
66 // sanity check on the written file
67 std::ifstream
ifs(filename
);
68 std::size_t count
= 0;
70 while (count
<= (2 * size
) + 4)
73 if (ifs
.good() && c
== fillc
)
82 VERIFY( count
== 2 * size
);
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