I did mention the reason. MS' CRT rand() function uses 15-bits only.

This also affects Perl directly because the perl's rand is implemented in terms of the crt function.

I'd normally use Math::Random::MT for anything where I need a descent random, but the standard implementation (and therefore the Perl module) is not threadsafe due to some static internal buffers.

In reply to Re^6: Generate a unique ID by BrowserUk
in thread Generate a unique ID by BrowserUk

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