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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: How do I write directly to a memory address?
Date: Mon, 07 Feb 2011 22:41:29 +0000
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Date: 2011-02-07T22:41:29+00:00
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Robert A Duff <bobduff@shell01.TheWorld.com> writes:

> Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org> writes:
>
>> I suppose you could save the sequence of values returned so far, and
>> the state would be an index into that sequence.
>
> Good point.
>
> I guess the state would be the whole sequence, plus an index into it,
> or something like that.

I don't think this would meet A.5.2(28), "[...] All generators are
implicitly initialized to an unspecified state that does not vary from
one program execution to another[...]".

I suppose that (reverting to the current Numerics.Discrete_Random) means
"for the same compiler on the same architecture"? You could hardly
expect GCC 4.3.3 on PowerPC to produce the same output as GCC 4.6.0 on
x86_64. Or could it even mean "for executions of a specific build of a
specific program on a specific machine"?