From: Pekka Enberg <penberg@gmail.com>
To: Phillip Lougher <phillip@lougher.demon.co.uk>
Cc: "Jörn Engel" <joern@wohnheim.fh-wedel.de>,
linux-kernel@vger.kernel.org, penberg@cs.helsinki.fi
Subject: Re: [PATCH] remove some usesless casts
Date: Thu, 21 Apr 2005 09:36:18 +0300 [thread overview]
Message-ID: <84144f0205042023366dc0b16@mail.gmail.com> (raw)
In-Reply-To: <4266C0C3.7070002@lougher.demon.co.uk>
Phillip,
Jörn Engel wrote:
> > Your definition of _unnecessary_ casts may differ from mine.
> > Basically, every cast is unnecessary, except for maybe one or two - if
> > that many.
On 4/20/05, Phillip Lougher <phillip@lougher.demon.co.uk> wrote:
> Well we agree to differ then. In my experience casts are sometimes
> necessary, and are often less clumsy than the alternatives (such as
> unions). This is probably a generational thing, the fashion today is to
> make languages much more strongly typechecked than before.
I think Jörn means that if you need an opaque data type, use void
pointers (which are automatically cast to the proper type) and that
all other casts are a design smell (except for the one or two special
cases where you actually need them).
Pekka
next prev parent reply other threads:[~2005-04-21 6:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-20 6:55 [PATCH] remove some usesless casts Jörn Engel
2005-04-20 15:20 ` Phillip Lougher
2005-04-20 21:33 ` Jörn Engel
2005-04-20 20:51 ` Phillip Lougher
2005-04-21 1:06 ` Jörn Engel
2005-04-21 6:36 ` Pekka Enberg [this message]
2005-04-21 6:48 ` Jörn Engel
2005-04-21 1:08 ` [PATCH 2/4] squashfs: kmalloc (less stack, less casts) Jörn Engel
2005-04-21 1:10 ` [PATCH 3/4] squashfs: (void*)ify squashfs_get_cached_block Jörn Engel
2005-04-21 1:11 ` [PATCH 4/4] squashfs: (void*)ify squashfs_read_data Jörn Engel
2005-04-22 7:20 ` [PATCH 5/10] squashfs: (void*)ify read_blocklist Jörn Engel
2005-04-22 7:22 ` [PATCH 6/10] squashfs: conserve stack, remove casts Jörn Engel
2005-04-22 7:22 ` [PATCH 6/10] squashfs: remove one cast Jörn Engel
2005-04-22 7:23 ` [PATCH 8/10] squashfs: add swabbing infrastructure Jörn Engel
2005-04-22 7:24 ` [PATCH 9/10] squashfs: remove some more casts Jörn Engel
2005-04-22 7:25 ` [PATCH 9/10] squashfs: first use of swabbing Jörn Engel
2005-04-22 7:52 ` [PATCH 8/10] squashfs: add swabbing infrastructure Jörn Engel
2005-04-22 7:26 ` [PATCH 6/10] squashfs: remove one cast Jörn Engel
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