| // 1999-07-01 bkoz |
| |
| // Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 21.3.7.9 inserters and extractors |
| |
| // NB: This file is predicated on sstreams, istreams, and ostreams |
| // working, not to mention other major details like char_traits, and |
| // all of the string class. |
| |
| #include <string> |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| |
| // testing basic_stringbuf::xsputn via stress testing with large strings |
| // based on a bug report libstdc++ 9 |
| void test04(std::size_t size) |
| { |
| bool test __attribute__((unused)) = true; |
| std::string str(size, 's'); |
| std::size_t expected_size = 2 * (size + 1); |
| std::ostringstream oss(str); |
| |
| // sanity checks |
| VERIFY( str.size() == size ); |
| VERIFY( oss.good() ); |
| |
| // stress test |
| oss << str << std::endl; |
| if (!oss.good()) |
| test = false; |
| |
| oss << str << std::endl; |
| if (!oss.good()) |
| test = false; |
| |
| VERIFY( str.size() == size ); |
| VERIFY( oss.good() ); |
| std::string str_tmp = oss.str(); |
| VERIFY( str_tmp.size() == expected_size ); |
| } |
| |
| int main() |
| { |
| test04(1); // expected_size == 4 |
| test04(1000); // expected_size == 2002 |
| test04(10000); // expected_size == 20002 |
| return 0; |
| } |