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From: David Brown <caml-list@davidb.org>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Why do input* and readdir throw End_of_file ... annoying!
Date: Sat, 7 Jun 2003 13:27:11 -0700	[thread overview]
Message-ID: <20030607202711.GA32043@davidb.org> (raw)
In-Reply-To: <20030607150854.GA20233@ecooper.com>

On Sat, Jun 07, 2003 at 11:08:54AM -0400, Eric C. Cooper wrote:

> and read_directory path =
>   let dirh = opendir path in
>   let rec loop entries =
>     try match readdir dirh with
>     | "." | ".." -> loop entries
>     | filename -> loop (read_filesystem filename :: entries)
>     with End_of_file -> entries
>   in
>   let list = loop [] in
>   closedir dirh;
>   list

But, this isn't tail recursive, so you might as well not pass the
argument and build up the list upon returning.  Is there a way of making
it really tail recursive, while using the exception?  It isn't too hard
with a list ref to accumulate the results.

Dave

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  reply	other threads:[~2003-06-07 20:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-06 17:01 Richard Jones
2003-06-06 17:30 ` Michal Moskal
2003-06-06 18:03 ` Ville-Pertti Keinonen
2003-06-06 18:43   ` Richard Jones
2003-06-07 15:08     ` Eric C. Cooper
2003-06-07 20:27       ` David Brown [this message]
2003-06-07 21:46         ` art yerkes
2003-06-09 15:33         ` Brian Hurt
2003-06-09  9:31       ` Fabrice Le Fessant
2003-06-06 18:49   ` Brian Hurt
2003-06-06 18:51     ` Richard Jones
2003-06-06 19:09       ` [Caml-list] " Alan Post
2003-06-06 19:44       ` [Caml-list] " Brian Hurt
2003-06-06 23:08     ` Lauri Alanko

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