Le Wednesday 23 April 2008 15:56:47 David Allsopp, vous avez écrit : > All that said, and especially as StdLib changes are reasonably rare, I find > having files IntSet.ml and IntSet.mli containing: > > include Set.Make(struct type t = int let compare = Pervasives.compare end) > > and > > include Set.S with type elt = int
One should probably use an other function than Pervasives.compare in that case. Some "benchmarks" show that 100 000 000 uses of comp with different definitions lead to some important differences for performance let comp = compare -> 1,54s let comp (i:int) (j:int) = compare i j -> 0.7s let comp (i:int) (j:int) = if i = j then 0 else if i < j then -1 else 1 -> 0.18s -- Alexandre Pilkiewicz _______________________________________________ Caml-list mailing list. Subscription management: http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list Archives: http://caml.inria.fr Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
