(********************************************************************)
(*  OCaml code from the book ``Learn Programming with OCaml''       *)
(*  See https://usr.lmf.cnrs.fr/lpo/                                *)
(*                                                                  *)
(*  Sylvain Conchon and Jean-Christophe Filliâtre                   *)
(*  Copyright 2025 Université Paris-Saclay and CNRS                 *)
(*                                                                  *)
(*  Openly licensed via CC BY SA 4.0                                *)
(*  See https://creativecommons.org/licenses/by-sa/4.0/deed.en      *)
(********************************************************************)

(* Program 7 on page 60
   Copying a File *)

let copy_file f1 f2 =
  let c1 = open_in f1 in
  let c2 = open_out f2 in
  try
    while true do output_char c2 (input_char c1) done
  with End_of_file ->
    close_in c1; close_out c2

let () = copy_file Sys.argv.(1) Sys.argv.(2)

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