Java Byte Array Compare memcmp(byte[] s1, int s1Size, int s1offset, byte[] s2, int s2Size, int s2offset)

Description

Equiv of C library memcmp().

License

Open Source License

Parameter

Parameter	Description
s1	a parameter
s1offset	a parameter
s2	a parameter
n	a parameter

Declaration

public final static int memcmp(byte[] s1, int s1Size, int s1offset, byte[] s2, int s2Size, int s2offset) 

Method Source Code

//package com.java2s;

public class Main {
    /**//from w w w.  j av  a2 s  .com
     * Equiv of C library memcmp().
     * 
     * @param s1
     * @param s1offset
     * @param s2
     * @param n
     * @return
     */
    public final static int memcmp(byte[] s1, int s1Size, int s1offset, byte[] s2, int s2Size, int s2offset) {

        int n = s1Size - s1offset;

        if (n > (s2Size - s2offset)) {
            n = s2Size - s2offset;
        }
        for (int i = 0; i < n; i++) {
            if (s1[i + s1offset] != s2[i + s2offset]) {
                return s1[i + s1offset] < s2[i + s2offset] ? -1 : 1;
            }
        }

        return 0;

    }
}

Related

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