Java floor floorModExt(int dividend, int divisor)

Description

Computes floored remainder or return divident for zero division.

License

Open Source License

Parameter

Parameter	Description
dividend	An dividend.
divisor	An divisor.

Return

floored remainder or divident for zero divisor.

Declaration

public static int floorModExt(int dividend, int divisor) 

Method Source Code

//package com.java2s;
/*/*ww  w .j av a  2 s. c  o m*/
 * The MIT License
 *
 * Copyright 2014 Piotr SQLek Sk?lski.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

public class Main {
    /** Computes floored remainder or return divident for zero division.
     * Donald E Knuth "The Art of Computer Programming" 1972
     *
     * @param dividend An dividend.
     * @param divisor An divisor.
     * @return floored remainder or divident for zero divisor.
     */
    public static int floorModExt(int dividend, int divisor) {
        if (divisor == 0)
            return dividend;
        return dividend - divisor * floorDiv(dividend, divisor);
    }

    /** Computes floored division.
     * Donald E Knuth "The Art of Computer Programming" 1972
     *
     * @param dividend An dividend.
     * @param divisor An divisor.
     * @return floored division.
     */
    public static int floorDiv(int dividend, int divisor) {
        return (int) Math.floor((double) dividend / (double) divisor);
    }
}

Related

1. floorLogBaseTwo(final int i)
2. floorLong(final double x)
3. floormod(float a, float b)
4. floorMod(long x, long y)
5. floorMod(long x, long y)
6. floorModulo(int value, int divisor)
7. floorPlaneAndHorizToPlanView(final int[][] frameCells, final short frame[], final int h)
8. floorPlaneToPlanView(int[][] frameCells, final int h)
9. floorPositive(float value)