vb.net overflow of variable as in c#

Question

I need to make some big multiplications for cryptographic reasons in vb.net and overflow the variable as C,C++ and C# does. I have disabled the check of overflow at the vb.net project but when i an doing those multiplications i get as a result 1.#INF

ex. in c:

z^y= 0xFFFFFFFF ^ 0x000003FC= 0xFFFFFC03

in vb.net:

z^y= 0xFFFFFFFF ^ 0x000003FC= 1.#INF

is it possible to be done?

That's not legal VB.Net code. VB uses &H prefix for hex numbers — JaredPar
– JaredPar, Commented Mar 19, 2012 at 14:21
Do it in C#. You are just going to be lured into traps by doing it in VB.net. Too many operators/functions that look alike, but really arent ... (if, IIF etc ...) — squelos
– squelos, Commented Mar 19, 2012 at 14:21

Konrad Rudolph · Accepted Answer · 2012-03-19 14:20:30Z

6

^ in C is Xor in VB and should never be able to overflow.

On the other hand, if you write ^ in VB then this is assumed to be the “power” operation.

Dim z = &HFFFFFFFF
Dim y = &H000003FC
Dim x = z Xor y

answered Mar 19, 2012 at 14:20

Konrad Rudolph

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