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(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Alain Frisch, LexiFi *)
(* *)
(* Copyright 2014 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* Check the effectiveness of inlining the wrapper which fills in
default values for optional arguments.
Ref: http://caml.inria.fr/mantis/view.php?id=6345
*)
let rec f ?(flag = false) ?(acc = 0) = function
| [] -> if flag then acc else acc + 1
| hd :: tl -> f ~flag ~acc:(acc + hd) tl
let () =
let l = [1;2;3;4;5;6;7;8;9] in
let x0 = Gc.allocated_bytes () in
let x1 = Gc.allocated_bytes () in
for i = 1 to 1000 do
ignore (f l)
done;
let x2 = Gc.allocated_bytes () in
assert(x1 -. x0 = x2 -. x1)
(* check that we have not allocated anything between x1 and x2 *)
|
