> >let sprint msg =
> >    print_endline ("BEGIN: "^(sprintf msg))
> >
> >without of course loosing the ability of having variable number of
> >parameters in my "msg".
> 
> If you can wait for 3.05, or if you are willing to use the CVS
> version, you'll be able to write:
> 
>   let sprint fmt =
>     let do_output s = print_endline ("BEGIN: " ^ s); "" in
>     Printf.kprintf do_output fmt
>   ;;
> 
> The tail-call to kprintf allows it to get the extra arguments thanks
> to currying.  The do_output function must return a string (which is
> returned by sprint) for technical reasons.  (This may change before
> the release.)

Seems nice :)
I'll wait the official release of 3.05 before switching to kprintf.
Thanks to all people who answered.

Nicolas Cannasse

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