Re: how portable is the random number generator?

Perl rand() uses C drand48() or if that isn't available C rand().

In the definition of both of these the algorithm is not defined, only the interface is.

A few good fast generator that can repeat exact sequences given big seeds is the Mersenne Twister.

Comment on Re: how portable is the random number generator?

Replies are listed 'Best First'.
Re^2: how portable is the random number generator? by choroba (Cardinal) on Jan 25, 2026 at 22:39 UTC
As was already mentioned, this is no longer true. Perl has used its own implementation of drand48 since 5.20. `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]