Re: Large Integers?

[kanderso@kleber.ICS.UCI.EDU (Ken Anderson)]

In comp.lang.ada you write:

>I am writing a network monitor program in Ada. Since, among other
>things, it counts the number of bytes flowing through the cable, I'll
>sooner or later run into integer overflows (the number might well
>exceed 2**31-1, which is the upper limit of Natural).

>Thus, I'm looking for a package that implements large positive
>integers. Range 0 .. 2**32-1 ("unsigned word") would not be enough, I'd
>rather need at least range 0 .. 2**40. An "unsigned double word"
>(0 .. 2**64-1) would save me from overflows for a few thousand
>years.

I believe

type Large_Natural is range 0 .. 2**64-1;

should do the trick if your compiler is smart enough and your machine
can handle it.

The syntax might be wrong (I don't have the ALRM handy) but I think
that gives you the idea...

Ken
--
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-Ken Anderson            Ken_Anderson@acm.org                       U.C. Irvine-
- "A knowledge of C is probably better than nothing." -- J.G.P. Barnes         -
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