Max HEX value for long type

Question

I have ported Java code to C#. Could you please explain why I have compile-time error in the follow line (I use VS 2008):

    private long l = 0xffffffffffffffff         


        

Answer 1

Assuming you aren't worried about negative values, you could try using an unsigned long:

private ulong l = 0xffffffffffffffffL;

In Java the actual value of l would be -1, because it would overflow the 2^63 - 1 maximum value, so you could just replace your constant with -1.