On Tue, Mar 14, 2023 at 3:47 PM Kwaku Biney <kwakubi...@gmail.com> wrote: > > i was digging in the rand package and came across NewSource(seed) in the > randpackage which creates a new source in case you don't want the global > source set by the package. It returns a Source interface. For some reason, > there's a seed method on the Source as well for which Rand implements, where > you pass the seed value. But in the NewSource implementation, there's an > rng.Seed() which gets called. Is there a reason why these two seed() calls > are necessary and if so, anyone know the difference? > https://github.com/golang/go/blob/master/src/math/rand/rand.go (edited)
A Source requires a seed to do anything at all, so NewSource takes a seed value. It's possible to change an existing Source to start producing a new sequence of random numbers starting from a new seed, so Source has a Seed method. Sure, we could force people to create a new Source if they want to start a new sequence at a new seed, but it's easy enough to not require that. Ian -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAOyqgcXGJeDhkb_VjC4pkaUo3tU5d2j4QMBJLRx%2B74nn3hBzzQ%40mail.gmail.com.
