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From: JM Nunes <Jose.DeAbreuNunes@anthro.unige.ch>
To: caml-list@inria.fr
Subject: Re: [Caml-list] "List.index" or "List.unique" functions?
Date: 30 Apr 2004 22:47:16 +0200	[thread overview]
Message-ID: <1083358037.1352.92.camel@sophne> (raw)
In-Reply-To: <874qr1nseq.dlv@vanicat.homelinux.org>

Note that List.rev is not being useful in this case. 

> let unique l = List.rev (List.fold_left (fun results x -> if List.mem
> x 		results then results else x::results) [] l);;
>
> unique [1;2;3;4;3;4;5;6;5];;
> - : int list = [1; 2; 3; 4; 5; 6]

# unique [7;1;2;3;4;3;4;5;6;5];;
- : int list = [7; 1; 2; 3; 4; 5; 6]

For sorting List.sort or other must be used.


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  reply	other threads:[~2004-04-30 20:47 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-30 17:54 Rahul Siddharthan
2004-04-30 18:51 ` Martin Jambon
2004-04-30 19:01 ` Benjamin Geer
2004-04-30 19:07   ` Thanks " Rahul Siddharthan
2004-04-30 19:08 ` Karl Zilles
2004-04-30 19:29   ` Matthieu Sozeau
2004-04-30 20:01     ` Karl Zilles
2004-04-30 20:05   ` Remi Vanicat
2004-04-30 20:47     ` JM Nunes [this message]
2004-04-30 20:58       ` Karl Zilles
2004-05-01  1:59   ` [Caml-list] List.rev skaller
2004-05-01  4:18     ` Jon Harrop
2004-05-01  4:38     ` brogoff
2004-05-01  5:12       ` skaller
2004-05-01  7:08         ` William Lovas
2004-05-01  8:10           ` skaller
2004-05-01  8:32             ` Jon Harrop
2004-05-01  9:24               ` skaller
2004-05-02 12:07             ` Andreas Rossberg
2004-05-02 13:29               ` skaller
2004-05-01 10:07         ` Richard Jones
2004-05-01 10:09           ` Nicolas Cannasse
2004-05-02 16:04             ` Brian Hurt
2004-05-01 10:32           ` Jon Harrop
2004-05-01 16:41     ` John Goerzen
2004-05-01 19:11       ` skaller
2004-05-01 10:03 ` [Caml-list] "List.index" or "List.unique" functions? Richard Jones

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