Java Number Power powerX(long a, long b)

Description

Cheap, unsafe, long power.

License

Apache License

Declaration

public static long powerX(long a, long b) 

Method Source Code

//package com.java2s;
/*//w  w  w . ja va  2  s .  c o  m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    /** Cheap, unsafe, long power. power(2, 3) returns 8. */
    public static long powerX(long a, long b) {
        long x = 1;
        while (b > 0) {
            x *= a;
            --b;
        }
        return x;
    }
}

Related

1. powerString(int power)
2. powerString(int power)
3. powerToInteger(String pow)
4. powerTrim(String s)
5. powerType(float power)
6. powExact(long x, int y)
7. powf(float v1, float v2)
8. powi(double x, int p)
9. powInt(int base, int exponent)