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// Copyright (C) 2003-2018 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <cstdio>
#include <fstream>
#include <testsuite_performance.h>
int main()
{
using namespace std;
using namespace __gnu_test;
time_counter time;
resource_counter resource;
const unsigned long count = 1ul << 30;
// C unlocked
FILE* fpi = fopen("/dev/zero", "r");
FILE* fpo = fopen("/dev/null", "w");
start_counters(time, resource);
for (unsigned long i = 0; i < count; ++i)
{
int c = getc_unlocked(fpi);
if (c == EOF || putc_unlocked(c, fpo) == EOF)
break;
}
stop_counters(time, resource);
fclose(fpi);
fclose(fpo);
report_performance(__FILE__, "C unlocked", time, resource);
clear_counters(time, resource);
// C++
filebuf in;
in.open("/dev/zero", ios::in);
filebuf out;
out.open("/dev/null", ios::out);
start_counters(time, resource);
for (unsigned long i = 0; i < count; ++i)
{
int c = in.sbumpc();
if (c == EOF || out.sputc(c) == EOF)
break;
}
stop_counters(time, resource);
in.close();
out.close();
report_performance(__FILE__, "C++", time, resource);
return 0;
}
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