Re: Fix cross-platform reproducibility
Marc Nieper-WiÃkirchen 07 Mar 2023 06:52 UTC
This tells me that generators should have their names end with "!".
This makes it harder to overlook these things (common pitfalls in
imperative programming).
Am Mo., 6. März 2023 um 21:47 Uhr schrieb Bradley Lucier <xxxxxx@purdue.edu>:
>
> Sorry, used the wrong sending address again. Brad
>
>
> -------- Forwarded Message --------
> Subject: Fix cross-platform reproducibility
> Date: Mon, 6 Mar 2023 15:39:12 -0500
> From: Bradley Lucier <xxxxxx@math.purdue.edu>
> To: xxxxxx@srfi.schemers.org
> CC: xxxxxx@purdue.edu
>
> I just sent a pull request with the following comment:
>
> Enhance cross-platform reproducibility
>
> The evaluation order of arguments is not specified in Scheme, and
> different implementations evaluate arguments in different orders.
>
> If these arguments are calls to random number generators, then different
> Scheme implementations can return different results for simulations,
> which is not good.
>
> Here we fix the order of evaluation of random number generators in
> make-normal-generator and binomial-rejection, so there can be no
> ambiguity in the order that random procedures are called.