Subversion Repositories openrisc_me

// Copyright (C) 2004, 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 <fstream>

#include <sstream>

#include <testsuite_performance.h>

void test_extraction(int p = 6)

{

  using namespace std;

  using namespace __gnu_test;

  const char* filename = "tmp_perf_float.txt";

  const int iterations = 10000000;

  ostringstream oss;

  oss << "precision " << p;

  // Construct data.

  {

    ofstream out(filename);

    out.precision(p);

    for (int i = 0; i < iterations; ++i)

      {

        float f = i * 3.14159265358979323846;

        out << f << '\n';

      }

  }

  {

    time_counter time;

    resource_counter resource;

    ifstream in(filename);

    in.precision(p);

    float f;

    start_counters(time, resource);

    for (int j, i = 0; i < iterations; ++i)

      in >> f;

    stop_counters(time, resource);

    report_performance(__FILE__, oss.str(), time, resource);

  }

  unlink(filename);

};

int main()

{

  test_extraction(6);

  test_extraction(12);

  return 0;

}