| // Copyright (C) 2005 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. |
| |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| |
| #include <cstdio> |
| #include <fstream> |
| #include <string> |
| #include <testsuite_performance.h> |
| |
| // libstdc++/22515 |
| int main() |
| { |
| using namespace std; |
| using namespace __gnu_test; |
| |
| time_counter time; |
| resource_counter resource; |
| |
| const char filename[] = "tmp_perf_chars.txt"; |
| const unsigned lines = 200000; |
| const unsigned line_length = 200; |
| |
| char* line = new char[line_length + 2]; |
| |
| // Construct data. |
| { |
| memset(line, 'x', line_length); |
| line[line_length] = '\n'; |
| line[line_length + 1] = '\0'; |
| |
| ofstream out(filename); |
| for (unsigned i = 0; i < lines; ++i) |
| out << line; |
| } |
| |
| // operator>>(basic_istream<char>& __in, basic_string<char>& __str) |
| { |
| start_counters(time, resource); |
| for (int iter = 0; iter < 25; ++iter) |
| { |
| ifstream file(filename); |
| string string_line; |
| |
| while (file >> string_line); |
| } |
| stop_counters(time, resource); |
| report_performance(__FILE__, "string&", time, resource); |
| clear_counters(time, resource); |
| } |
| |
| // operator>>(basic_istream<char>& __in, char* __s) |
| { |
| start_counters(time, resource); |
| for (int iter = 0; iter < 25; ++iter) |
| { |
| ifstream file(filename); |
| |
| while (file >> line); |
| } |
| stop_counters(time, resource); |
| report_performance(__FILE__, "char*", time, resource); |
| clear_counters(time, resource); |
| } |
| |
| delete[] line; |
| unlink(filename); |
| return 0; |
| } |