IBAN checking/creating

[idelovski]

I suppose some of you have heard about IBAN standard for bank accounts (WIKI).

In essence, I need to do mod operation on a very big number and it seems like unsigned long long isn't big enough, at least for accounts in my country. Any advice how to do it? Is libtom my only choice?

[subsonix]

That wiki page you linked to tells you how you can do it in a piece-wise manner, described in 4 steps. Under modulo operation on IBAN: http://en.wikipedia.org/wiki/Interna...ration_on_IBAN

[idelovski]

Thanks,

since I needed to genereate those iban prefixes and the solution on that page is related to validation at first I didn't look at it too deep, but now I realized there are only 100 combinations (from '00' trough '99') so I can just loop and check each value. The good one should surface very quickly.