Re: [boost] [uuid] basic_random_generator doesn't produce a fully randomized uuid when sizeof(unsigned long) == 4

On 2 March 2010 06:21, Sylvester-Bradley, Gareth <Gareth.Sylvester-Bradley@eu.sony.com> wrote:

Is 8 bytes of randomness enough, or is this a mistake?

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.