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Subject: Re: [Boost-users] [Random] normal distribution different behaviour 1.55 vs 1.57
From: oswin krause (oswin.krause_at_[hidden])
Date: 2014-12-19 02:34:53

On 19.12.2014 00:00, Semen Trygubenko / Семен Тригубенко wrote:
> On the positive side, our tests are now much more robust to that sort
> of changes. :)

We had the same issue a few years ago when changing to boost::random -
almost every test broke. It turned out that testing for specific values
or only a small number of samples (the only tests which are affected by
this kind of change) can mask a lot of bugs - even though some values
seem to be correct, confidence intervals or measured variances can still
be off. So for us a more robust test also meant a better test that
discovered bugs.

But yeah: such a change should be part of the change-log.

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