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// 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;
}
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