From: Richard Jones <rich@annexia.org>
To: Pascal Zimmer <Pascal.Zimmer@sophia.inria.fr>
Cc: Oliver Bandel <oliver@first.in-berlin.de>, caml-list@yquem.inria.fr
Subject: Re: [Caml-list] immutable Strings?
Date: Mon, 14 Mar 2005 12:57:29 +0000 [thread overview]
Message-ID: <20050314125728.GA17687@furbychan.cocan.org> (raw)
In-Reply-To: <423567E1.1030909@sophia.inria.fr>
On Mon, Mar 14, 2005 at 11:30:57AM +0100, Pascal Zimmer wrote:
> - you cannot use the shortcuts s.[i] and (^) anymore (this gets the code
> less readable especially for the first one)
You can get the s.[i] shortcut by naming your module
'ImmString.String' (using a nested module in other words) and using
'open ImmString'. However this has the further problem that you then
can no longer use mutable strings :-( although perhaps Oliver has
forsworn use of mutable strings, so this is an acceptable compromise
for him.
# module ImmString = struct
module String = struct
let get s i = prerr_endline "hello!"; 'c'
end
end;;
module ImmString : sig module String : sig val get : 'a -> 'b -> char end end
# open ImmString;;
# "foo".[3];;
hello!
- : char = 'c'
Rich.
--
Richard Jones, CTO Merjis Ltd.
Merjis - web marketing and technology - http://merjis.com
Team Notepad - intranets and extranets for business - http://team-notepad.com
next prev parent reply other threads:[~2005-03-14 12:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-12 20:50 Oliver Bandel
2005-03-14 10:30 ` [Caml-list] " Pascal Zimmer
2005-03-14 10:41 ` Jon Harrop
2005-03-14 11:15 ` Pascal Zimmer
2005-03-14 12:57 ` Richard Jones [this message]
2005-03-14 13:01 ` Richard Jones
2005-03-15 2:13 ` Jacques Garrigue
2005-03-15 8:09 ` Oliver Bandel
2005-03-15 8:40 ` Oliver Bandel
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