how to compare two byte arrays with length not divisible by 4...

[RobbSadler]

This post was meant to go at the end of another post named "How to Compare Two Byte Arrays" which was answered by Vadym Stetsyak, but it was closed. I used his code from that post to create this, and added two items discussed in the previous post:
1. different length arrays
2. buffer must be divisible by 4.

I simply check the remaining bytes using the two byte pointers.

public unsafe static bool CompareByteArrays(byte[] b1, byte[] b2)
{
    if (b1.Length != b2.Length)
        return false;
    fixed (byte* bp1 = b1)
    {
        fixed (byte* bp2 = b2)
        {
            int* ip1 = (int*) bp1;
            int* ip2 = (int*) bp2;
            for (int i = 0; i < b1.Length/4; i++)
            {
                if (ip2[i] != ip1[i])
                    return false;
            }
            if ((b1.Length % 4) != 0)
            {
            for (int i = b1.Length - (b1.Length % 4); i < b1.Length; i++)
            {
                if (bp2[i] != bp1[i])
                    return false;
            }
            }
 
            return true;
        }
    }
}

Peace,

Robb

[tlhintoq]

TIP: When you first created your question you were asked to wrap your code with [code] tags.

It really does help a bunch. Look how much easier it is to read now that someone has done it for you. Its the button with a '#' on it. More on tags. They're cool. Check'em out.

[tlhintoq]

This post was meant to go at the end of another post named "How to Compare Two Byte Arrays" which was answered by Vadym Stetsyak, but it was closed.

If you could include a link to the post you are talking about that might be very helpful

[RobbSadler]

Here is the original post.

Thanks for the correction - the code looks much better. I actually did not go through a question and posted exactly like what I saw in the original (and didn't look for a code button).

I also misspoke when I mentioned the person who answered. It was Marcus Andrén.

That's what I get trying to be quick...

Thanks again!