From: Pixel <pixel@mandrakesoft.com>
To: Sven LUTHER <luther@dpt-info.u-strasbg.fr>
Cc: Vitaly Lugovsky <vsl@ontil.ihep.su>, caml-list@inria.fr
Subject: Re: [Caml-list] unused variables warning
Date: Sun, 29 Apr 2001 15:14:49 +0200 (CEST) [thread overview]
Message-ID: <20010429131449.5A6D55725@leia.mandrakesoft.com> (raw)
In-Reply-To: Sven LUTHER's message of "Sun, 29 Apr 2001 15:06:25 +0200"
Sven LUTHER <luther@dpt-info.u-strasbg.fr> writes:
> > even if the <...> is unpure, caml could warn that x' is unused. It doesn't mean
> > in any way that computing x' is unnecessary.
> >
> > and caml should not warn for
> >
> > let _x' = <...> in
>
> I guess you mean just :
>
> let _ = <...> in
well, no. In fact i thought "_x" and "_" were the same, discarded,
non-accessible variables. I'm wrong on this.
the manual recommend not to use _xxx variables, otherwise it could have been a
way to write things like:
let _no_warning_but_meaningful_name = <...> in
but it would be another rule to learn: ``no warning for unused variables
starting with _'' (which is just what Haskell is doing).
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next prev parent reply other threads:[~2001-04-29 13:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-28 9:57 Pixel
2001-04-29 8:15 ` Vitaly Lugovsky
2001-04-29 9:58 ` Pixel
2001-04-29 13:06 ` Sven LUTHER
2001-04-29 13:14 ` Pixel [this message]
2001-04-29 10:14 ` Marcin 'Qrczak' Kowalczyk
2002-09-09 21:24 ` [Caml-list] " Pixel
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