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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/char/4.cc
3 // Copyright (C) 1999-2021 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 // 21.3.7.9 inserters and extractors
22 // NB: This file is predicated on sstreams, istreams, and ostreams
23 // working, not to mention other major details like char_traits, and
24 // all of the string class.
28 #include <testsuite_hooks.h>
30 // testing basic_stringbuf::xsputn via stress testing with large strings
31 // based on a bug report libstdc++ 9
32 void test04(std::size_t size
)
34 std::string
str(size
, 's');
35 std::size_t expected_size
= 2 * (size
+ 1);
36 std::ostringstream
oss(str
);
39 VERIFY( str
.size() == size
);
43 oss
<< str
<< std::endl
;
47 oss
<< str
<< std::endl
;
51 VERIFY( str
.size() == size
);
53 std::string str_tmp
= oss
.str();
54 VERIFY( str_tmp
.size() == expected_size
);
59 test04(1); // expected_size == 4
60 test04(1000); // expected_size == 2002
61 test04(10000); // expected_size == 20002