From: Jean-Baptiste Rouquier <jrouquiethearchivesshouldaddafewantispamtricks@ens-lyon.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Associativity precedence for the user-defined operator.
Date: Fri, 23 Jul 2004 13:42:01 -0400 [thread overview]
Message-ID: <41014DE9.5020606@ens-lyon.fr> (raw)
In-Reply-To: <Pine.LNX.4.44.0407231614060.12107-100000@strudel.di.unipi.it>
Claudio Trento wrote:
>Hi,
>
>I've defined a set of new operetors, for instance:
>
>let ( /+/ ) = add_num (where add_num is a function that added two sometype
> elements.)
>
>but I don't know if I can set associativity precedence for this operator,
>writing: el1 ( /+/ ) el2 ( /+/ ) el3 without parenthesis, what happens?
>
The manual says that here you have left associativity. See
http://caml.inria.fr/ocaml/htmlman/manual015.html.
# let ( /+/ ) a b =
Printf.printf "a=%i, b=%i\n%!" a b;
a + b;;
val ( /+/ ) : int -> int -> int = <fun>
# let _ = 1 /+/ 2 /+/ 39;;
a=1, b=2
a=3, b=39
- : int = 42
Cheers,
Jean-Baptiste.
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next prev parent reply other threads:[~2004-07-23 17:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-23 14:27 Claudio Trento
2004-07-23 14:36 ` Richard Jones
2004-07-23 17:42 ` Jean-Baptiste Rouquier [this message]
2004-07-23 19:52 ` John Prevost
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