From: Christian Lindig <lindig@cs.uni-sb.de>
To: "Quôc Peyrot" <chojin@lrde.epita.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] right-associating infix application operator camlp4 extension
Date: Thu, 11 Aug 2005 12:41:40 +0200 [thread overview]
Message-ID: <33e9ca430f07c8e8c61bfabe70274b24@cs.uni-sb.de> (raw)
In-Reply-To: <07A35039-4D77-4F7B-B0CC-A0247FBA14D0@lrde.epita.fr>
On Aug 11, 2005, at 5:04 AM, Quôc Peyrot wrote:
> Thanks a lot for the answers.
> Strangely I couldn't find $ in this documentation, but
> let ($) f x = f x
> seems to work.
This does not work; you need a right associative operator:
# let ($) f x = f x;;
val ( $ ) : ('a -> 'b) -> 'a -> 'b = <fun>
# (-) 3 $ (/) 4 $ 2 ;;
This expression has type int -> int but is here used with type int
# let (@@) f x = f x;;
val ( @@ ) : ('a -> 'b) -> 'a -> 'b = <fun>
# (-) 3 @@ (/) 4 @@ 2 ;;
- : int = 1
This is the right result for 3-(4/2)=1.
-- Christian
prev parent reply other threads:[~2005-08-11 10:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-06 23:03 Quôc Peyrot
2005-08-07 8:23 ` [Caml-list] " Christian Lindig
2005-08-10 6:21 ` osiire
2005-08-10 7:38 ` Jean-Marie Gaillourdet
2005-08-10 7:50 ` David MENTRE
2005-08-11 3:04 ` Quôc Peyrot
2005-08-11 4:50 ` Stephane Glondu
2005-08-11 10:41 ` Christian Lindig [this message]
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