gcc/libstdc++-v3/testsuite/performance/filebuf_sputc.cc
Benjamin Kosnik aecf642c78 *: Change __gnu_cxx_test to __gnu_test.
2003-07-24  Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/*: Change __gnu_cxx_test to __gnu_test.

From-SVN: r69761
2003-07-24 21:08:03 +00:00

75 lines
2.4 KiB
C++

// Copyright (C) 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// 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 <testsuite_performance.h>
// libstdc++/9876
int main()
{
using namespace std;
using namespace __gnu_test;
time_counter time;
resource_counter resource;
const int iterations = 100000000;
// C
FILE* file = fopen("tmp", "w+");
start_counters(time, resource);
for (int i = 0; i < iterations; ++i)
putc(i % 100, file);
stop_counters(time, resource);
fclose(file);
report_performance(__FILE__, "C", time, resource);
clear_counters(time, resource);
// C unlocked
file = fopen("tmp", "w+");
start_counters(time, resource);
for (int i = 0; i < iterations; ++i)
putc_unlocked(i % 100, file);
stop_counters(time, resource);
fclose(file);
report_performance(__FILE__, "C unlocked", time, resource);
clear_counters(time, resource);
// C++
filebuf buf;
buf.open("tmp", ios_base::out | ios_base::in | ios_base::trunc);
start_counters(time, resource);
for (int i = 0; i < iterations; ++i)
buf.sputc(i % 100);
stop_counters(time, resource);
report_performance(__FILE__, "C++", time, resource);
unlink("tmp");
return 0;
}