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// Copyright (C) 2006, 2009 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 <iterator>

#include <sstream>

#include <algorithm>

#include <testsuite_performance.h>

// libstdc++/25482

int main()

{

  using namespace std;

  using namespace __gnu_test;

  typedef istreambuf_iterator<char> in_iterator_type;

  typedef ostreambuf_iterator<char> out_iterator_type;

  time_counter time;

  resource_counter resource;

  const char data[] = "Contrappunto dialettico alla mente";

  // istreambuf iterators -> ostreambuf iterator

  {

    istringstream iss(data);

    in_iterator_type beg(iss);

    in_iterator_type end;

    ostringstream oss;

    out_iterator_type out(oss);

    start_counters(time, resource);

    for (unsigned i = 0; i < 10000000; ++i)

      {

        copy(beg, end, out);

        iss.seekg(0);

        oss.seekp(0);

      }

    stop_counters(time, resource);

    report_performance(__FILE__, "isb iters -> osb iter", time, resource);

    clear_counters(time, resource);

  }

  // char array -> ostreambuf iterator

  {

    const char* beg = data;

    const char* end = data + sizeof(data) - 1;

    ostringstream oss;

    out_iterator_type out(oss);

    start_counters(time, resource);

    for (unsigned i = 0; i < 10000000; ++i)

      {

        copy(beg, end, out);

        oss.seekp(0);

      }

    stop_counters(time, resource);

    report_performance(__FILE__, "pointers  -> osb iter", time, resource);

    clear_counters(time, resource);

  }

  // istreambuf iterators -> char array

  {

    istringstream iss(data);

    in_iterator_type beg(iss);

    in_iterator_type end;

    char out[sizeof(data)];

    start_counters(time, resource);

    for (unsigned i = 0; i < 10000000; ++i)

      {

        copy(beg, end, out);

        iss.seekg(0);

      }

    stop_counters(time, resource);

    report_performance(__FILE__, "isb iters -> pointer", time, resource);

    clear_counters(time, resource);

  }

  return 0;

}