Compare 4 arrays for equality

[capablanca]

Hello C++, C Sharp
Is there anybody can tell me if this condition is correct to compare 4 arrays for equality:

if (A != B || B != C || C != D)
return false;

Thanks

[Falkeli]

In C#, this checks if the array references point to the same object, not if they are equal internally.

What you can do is use the following function:

bool ArraysEqual<T>(T[] first, T[] second)
{
    if (first==second)
        return true;
    if (first==null || second==null)
        return false;
    if (first.Length != second.Length)
        return false;

    for(int i=0;i<first.Length; i++)
    {
        if (first[i] != second[i])
            return false;
    }

    return true;
}

And then, your if condition will be:

if (!(ArraysEqual(A,B)&&ArraysEqual(B,C)&&ArraysEqual(C,D))

This should do it.

[capablanca]

Thanks Falkeli for everything, you helped me a lot, thanks again