llvm-gcc-4.2/libstdc++-v3/testsuite/performance/27_io/fmtflags_manipulators.cc

// Copyright (C) 2004 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 <cstdlib>
#include <sstream>
#include <testsuite_performance.h>

// libstdc++/14078
int main(int argc, char** argv)
{
  using namespace std;
  using namespace __gnu_test;

  time_counter time;
  resource_counter resource;

  int iters = 50000000;
  if (argc > 1)
    iters = atoi(argv[1]);
  
  ostringstream os_s, os_m;

  // setf
  start_counters(time, resource);
  for (int i = 0; i < iters; ++i)
    {
      os_s.setf(ios_base::uppercase);
      os_s.unsetf(ios_base::uppercase);
    }
  stop_counters(time, resource);
  report_performance(__FILE__, "setf", time, resource);
  clear_counters(time, resource);

  // manipulator
  start_counters(time, resource);
  for (int i = 0; i < iters; ++i)
    {
      os_m << uppercase;
      os_m << nouppercase;
    }
  stop_counters(time, resource);
  report_performance(__FILE__, "manipulator", time, resource);

  return 0;
}