rand::distributions::Distribution::sample using &mut

[burdges]

I suppose rand::distributions::Distribution::sample takes a &mut R instead of an R because otherwise the errors get confusing?

[dhardy]

See this post.

[burdges]

Thanks! I suppose monomorphization creates another issue if you wind up with separate entry points for each &mut &mut .. &mut R.

I've no idea if Rust can optimize those away, but if not then maybe idiomatic usage should really by BorrowMut<R> whenever you might want both R and &mut R.