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Infix function composition operator
-
Arlen Christian Mart Cuss
- Yaron Minsky
- Michael Ekstrand
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Date: | 2010-11-10 (13:23) |
From: | Michael Ekstrand <michael@e...> |
Subject: | Re: [Caml-list] Infix function composition operator |
On 11/09/2010 09:19 PM, Arlen Christian Mart Cuss wrote: > Hi all, > > I know this was asked at least 12 years ago[1], but is there any > consensus or reason for there not being a "compose" function in standard > OCaml, nor an infix operator? > > At the moment I tend to "let compose" or "let (<<-) f g x = f (g x)", > but I wish I didn't have to! Batteries[1] includes such an operator in its Std module and its extension of Pervasives. The compose operator is is '-|', and the reverse compose operator is '|-' ((f |- g) x = g (f x)). It also provides the pipeline operator '|>' and its converse application operator '**>'. - Michael 1. http://batteries.forge.ocamlcore.org