[erlang-questions] binary to bigint?

Bob Ippolito <>
Tue Aug 7 15:47:03 CEST 2007


1> Bin2Int = fun (Bin) -> L = 8 * size(Bin), <<Int:L>> = Bin, Int end.
#Fun<erl_eval.6.49591080>
2> crypto:start().
ok
3> Bin2Int(crypto:rand_bytes(40)).
627266637011650447231137234977838010396277839317351827811606595385624201947967310123742917146068

-bob

On 8/6/07, Jim McCoy <> wrote:
> After bouncing through the various bits of doc related to io_lib I
> can't quite seem to put together a quick function that will convert an
> arbitrary binary to a big int (e.g. I want the integer for
> crypto:rand_bytes(40)...)
>
> Any hints?
>
> jim
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