Re: [boost] [Random] - statistics_test for boost::uuids::detail::seed_rng

Subject: Re: [boost] [Random] - statistics_test for boost::uuids::detail::seed_rng
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2011-03-14 19:55:27

AMDG

On 03/14/2011 04:07 PM, Andy Tompkins wrote:
> The * is for mt19937, thus even if it is an issue, I would assume that
> it is not an issue with seed_rng.

I will point out that this test only
validates that the distribution of
sequential calls is uniformly
distributed in a few dimensions.
It tells you nothing about how
unpredictable the sequence is.
Looking at the code, I think it
may be possible to generate
the same values in two different
processes if they run simultaneously
on a system with no /dev/urandom.

> In any event, thank you for your answer.
>
> Do you (or the community) thing this should live in Boost.Random instead
> of a detail of Boost.Uuid?

Boost.Random already has random_device
which should be at least as good as the
ad hoc methods that you're using.

In Christ,
Steven Watanabe