Main.java Source code

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//package com.java2s;
/*
 * BitUtils.java
 * Copyright (C) 2003, 2004 David Clausen
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

public class Main {
    /**
     * Returns the number of contiguous 0 bits starting with the most significant
     * bit of x.
     */
    static int countLeadingZeros(int x) {
        return Integer.numberOfLeadingZeros(x);
    }

    /**
     * Returns the number of contiguous 0 bits starting with the most significant
     * bit of x.
     */
    static int countLeadingZeros(long x) {
        return Long.numberOfLeadingZeros(x);
    }
}