On Thu, Oct 4, 2012 at 7:01 PM, J. Ian Johnson <[email protected]> wrote: > > By almost exactly I mean > (let () (set-add res v)) > > versus > > (let ([res res]) > (set-add (let ([v v]) > (set-add res (let () v)))))
These seem importantly different, in that: (set-add v (set-add res v)) and (set-add res v) are totally different values, and the former only works if both `v` and `res` are sets. If you want to determine the behavior of the compiler, which is what matters for differences like extra `let` bindings, 'raco decompile' is the best tool. -- sam th [email protected] ____________________ Racket Users list: http://lists.racket-lang.org/users
