Subject: Re: [boost] [uuid] basic_random_generator doesn't produce a fullyrandomized uuid when sizeof(unsigned long) == 4
From: Andy Tompkins (atompkins_at_[hidden])
Date: 2010-03-03 12:14:39
On Tue, 02 Mar 2010 16:05 +0000, "Sylvester-Bradley, Gareth"
> > This is definitely a mistake, since it means only about 4 billion
> > 'til a collision, completely destroying the utility of random UUIDs.
> > Not to mention that shifting by >= the width isn't well-defined,
> > which means there's no guarantee it even gives different UUIDs.
> > Good catch.
Absolutely great catch! It is definitely a mistake.
> Simplest patch could be just:
> > i=0;
This is exactly what I meant it to be. Reset i every time it equals
Just to double check, I fix this in trunk and wait to put it into
release until it is open for these changes. Correct?
> Best regards,
Thanks very much!
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