Complement Int32

new_gist_file

private static byte GetPositionHigherBit(int value)
{
    for (byte kk = 31; kk > 0; kk--)
        if ((value & (int)(Math.Pow(2, kk))) == (int)(Math.Pow(2, kk))) return kk;
    return 0;
}

private static int InvertBits(int value)
{
    var posbit = GetPositionHigherBit(value);
    int mask =  (int)Math.Pow(2, posbit + 1) - 1;
    var result = ~value & mask;
    return result;
}