Now if you *add* two rand() values in order, for example, to get a 64-bit random value
You have omitted a little bit of detail that was not omitted in BrowserUk's warning: the context was combining two 32-bit values to obtain a 64-bit value.

Can you please elaborate on how it is possible to ADD two 32-bit numbers — of any origin, not necessarily rand() — and arrive at a value in 64-bit range?

In reply to Re^2: how to get a 64bit random number with rand() ? by Anonymous Monk
in thread how to get a 64bit random number with rand() ? by iglake

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