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// 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, 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 <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;

}