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 = 0xffffffffffffffffL; // 16 'f' got here

Cannot convert source type ulong to target type long

I need the same value here as for origin Java code.

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.