Compares up to n elements of byte array a[] against byte array b[]. : Byte Array « File Stream « C# / C Sharp






  1. C# / C Sharp
  2. File Stream
  3. Byte Array

Compares up to n elements of byte array a[] against byte array b[].

       
 
 
public class Util
{
    /*
     * Description: Compares up to n elements of byte array a[] against byte array b[].
     * The first byte comparison is made between a[a_first] and b[b_first].  Comparisons continue
     * until the null terminating byte '\0' is reached or until n bytes are compared.
     * Return Value: Returns 0 if arrays are the same up to and including the null terminating byte 
     * or up to and including the first n bytes,
     * whichever comes first.
     */
    public static int bytencmp(byte[] a, int a_first, byte[] b, int b_first, int n)
    {
        int elem;

        for (elem = 0; elem < n; ++elem)
        {

            if ('\0' == a[a_first + elem] && '\0' == b[b_first + elem])
            {
                return 0;
            }
            if (a[a_first + elem] < b[b_first + elem])
            {
                return 1;
            }
            else if (a[a_first + elem] > b[b_first + elem])
            {
                return -1;
            }
        }
        return 0;
    }

}








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