[erlang-questions] Limits on integer size

Bjorn Gustavsson <>
Tue Aug 26 09:18:23 CEST 2008


On Tue, Aug 26, 2008 at 8:56 AM, Imre Palik <> wrote:

>
> But if I decrease the size of HN to let's say 100 digits, then it works
> without any problem.
> Could somebody tell me the limitations that I have with integers in erlang?
>  Is it possible to tune these somehow (config file, environment variable,
> etc.)?
>

The problem is not integer limits, but floating point limits.

random:uniform(N) first generates a floating point number between 0 and 1,
then multiplies it by N. The result is too big to be represented
as a floating point number.

/Bjorn

-- 
Björn Gustavsson, Erlang/OTP, Ericsson AB
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