From: Mitchell Blank Jr <mitch@sfgoth.com>
To: "Robert T. Johnson" <rtjohnso@eecs.berkeley.edu>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
David Wagner <daw@eecs.berkeley.edu>
Subject: Re: &array considered harmful?
Date: Mon, 23 Feb 2004 14:49:11 -0800 [thread overview]
Message-ID: <20040223224911.GA48883@gaz.sfgoth.com> (raw)
In-Reply-To: <1077574309.16259.4.camel@dooby.cs.berkeley.edu>
Robert T. Johnson wrote:
> memset(&A, 0, sizeof(A));
[...]
> This works because in C, for a local array, &A == A. The problem is
> that this is very brittle.
I'm probably in the minority here, but I've gotten into the habit of saying
"&A[0]" since I think it's more explicit ("I want the address of the
FIRST ELEMENT of the array") and it avoids exactly the problems you mention.
It's true that it's equivelent to just saying "A" (well, almost - if "A"
is a pointer then it could be an lvalue while "&A[0]" never is) but I
like the visual cue of that "&" provides. Matter of taste I guess -
I'm sure some people consider it ugly.
-Mitch
next prev parent reply other threads:[~2004-02-23 22:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-23 22:11 Robert T. Johnson
2004-02-23 22:49 ` Mitchell Blank Jr [this message]
2004-02-24 12:53 ` Richard B. Johnson
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