Mercurial > bmsapp / file revision

/**
 * Utils.cpp is part of bmsapp.
 *
 * bmsapp 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 of the License, or
 * (at your option) any later version.
 *
 * bmsapp 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 program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "Utils.h"

#include <math.h>

double Utils::Round(double n, int d)
{
    int m;

    for (int i = 0, m = 1; i < d; i++, m *= 10);
    return round(n * m) / m;
}


double Utils::lintner_to_kolbach(double lintner)
{
    double wk = (3.5 * lintner) - 16;
    if (wk < 0)
	return 0.0;
    return wk;
}


double Utils::kolbach_to_lintner(double kolbach)
{
    return Round((kolbach + 16) / 3.5, 3);
}