Returns the largest integer less than or equal to the specified float. - Java java.lang

Java examples for java.lang:Math Function

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Description

Returns the largest integer less than or equal to the specified float.

Demo Code

/*/*from w ww .  j av  a  2  s  . co m*/
 * Copyright (c) 2006-2011 Karsten Schmidt
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * http://creativecommons.org/licenses/LGPL/2.1/
 * 
 * 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
//package com.java2s;

public class Main {
    static private final int BIG_ENOUGH_INT = 16 * 1024;
    static private final double BIG_ENOUGH_FLOOR = BIG_ENOUGH_INT;

    /**
     * Returns the largest integer less than or equal to the specified float. This method will only properly floor floats from
     * -(2^14) to (Float.MAX_VALUE - 2^14).
     */
    static public int fastFloor(float x) {
        return (int) (x + BIG_ENOUGH_FLOOR) - BIG_ENOUGH_INT;
    }
}

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