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Newsgroups: comp.lang.ada
Date: Mon, 16 Jul 2018 06:34:00 -0700 (PDT)
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Subject: Re: Simple hash or pseudo-random function
From: Shark8 <onewingedshark@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:53843
Date: 2018-07-16T06:34:00-07:00
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On Monday, July 16, 2018 at 2:20:28 AM UTC-6, gautier...@hotmail.com wrote:
> Hello,
> Does someone have a function that would take an integer (range 0 .. 2**63=
), not uniformily distributed (it's a code with some meaning) and return a =
number that is pseudo-random, uniformily distributed (could be a floating-p=
oint number or an integer in a range of minimum length 365) ?
> The difficulty for me is to find a very simple function. There are many t=
hat are for hashing strings, but they could be too time-consuming: it's for=
 a number-crunching program where this function will be called billions of =
times, so I'm looking for something really simple (and fast :-) ).
> TIA

There was somebody a few years back who was an older Mathematician who post=
ed a RNG function to this board some years ago. That might be useful for yo=
u. (I want to say his method was KISS#### or something like that.)