From: William Lovas <wlovas@stwing.upenn.edu>
To: Vasili Galchin <vasiliocaml@yahoo.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Test case syntax error
Date: Thu, 4 Mar 2004 23:42:43 -0500 [thread overview]
Message-ID: <20040305044242.GA2807@force.stwing.upenn.edu> (raw)
In-Reply-To: <20040305032546.43655.qmail@web41206.mail.yahoo.com>
On Thu, Mar 04, 2004 at 07:25:46PM -0800, Vasili Galchin wrote:
> 1) It gets a syntax error on the ending "done" for the
> "while true". I have tried trimming down and still the
> syntax error. I am sorry for something so elementary.
> Can anyone help?
Let's look at the code:
> while true do
> let (buffer:string) = "" in
> (* Do blocking read! *)
> let (x, y) = Unix.recvfrom descr buffer 0 128 [MSG_OOB]
> done
An expression belongs inside the `do ... done' of a while loop, and any
`let' expression needs an `in'. (Be careful not to confuse the `let ...
in ...' _expression_ with the `let ...' _top-level declaration_.) What do
you want to do with that (x, y) pair after you've bound it?
> 2) I am running on Linux. I did a "man ocamlc" to see
> what kind of compiler switches there are. Is there a
> compiler switch that gives a more verbose/helpful
> error than simply "syntax error"?
None that i'm aware of, but after you spend enough time with O'Caml's
syntax, the location of the error is usually enough.
cheers,
William
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next prev parent reply other threads:[~2004-03-05 4:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-01 14:24 [Caml-list] The Makefile Rakotomandimby Mihamina
2004-03-01 16:04 ` Remi Vanicat
2004-03-01 16:41 ` Rakotomandimby Mihamina
2004-03-02 1:00 ` [Caml-list] use of abstract type "inet_addr" Vasili Galchin
2004-03-02 10:00 ` Olivier Pérès
2004-03-02 15:38 ` Christophe TROESTLER
2004-03-04 2:48 ` SooHyoung Oh
2004-03-04 15:53 ` Henri DF
2004-03-05 3:25 ` [Caml-list] Test case syntax error Vasili Galchin
2004-03-05 4:42 ` William Lovas [this message]
2004-03-05 7:39 ` Shawn Wagner
2004-03-05 8:05 ` sebastien FURIC
2004-03-05 12:44 ` John Carr
2004-03-05 15:13 ` Remi Vanicat
2004-03-05 18:00 ` [Caml-list] use of abstract type "inet_addr" Didier Remy
2004-03-01 16:37 ` [Caml-list] The Makefile Rakotomandimby Mihamina
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