From: David Carlton <carlton@math.stanford.edu>
To: Andrew Cagney <ac131313@ges.redhat.com>
Cc: gdb <gdb@sources.redhat.com>
Subject: Re: naive GDB programming style questions
Date: Tue, 10 Sep 2002 11:39:00 -0000 [thread overview]
Message-ID: <ro18z29adty.fsf@jackfruit.Stanford.EDU> (raw)
In-Reply-To: <ro1k7lua4cx.fsf@jackfruit.Stanford.EDU>
On 09 Sep 2002 20:52:14 -0700, David Carlton <carlton@math.Stanford.EDU> said:
> On Mon, 09 Sep 2002 21:45:54 -0400, Andrew Cagney <ac131313@ges.redhat.com> said:
>> If you've a copy of the ISO C and C++ manuals, have a look at what
>> they have to say about ``NULL'' pointers. It's weird.
> Though if you're referring to the fact that NULL's underlying bit
> representation might not be 0, I'm not sure that's a big deal here.
Actually, that raises another question: if I'm allocating an array of
pointers that I want initialized to NULL, am I allowed to use
xcalloc() to handle that, or do I have to loop through the memory
myself to set all the pointers to NULL? Because the former is
technically incorrect, but I don't know if GDB runs on any platforms
for which it wouldn't work; I think I've seen parts of GDB initialize
pointers to NULL using xcalloc or memset, but maybe I'm wrong.
David Carlton
carlton@math.stanford.edu
next prev parent reply other threads:[~2002-09-10 18:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-09 16:14 David Carlton
2002-09-09 18:45 ` Andrew Cagney
2002-09-09 20:52 ` David Carlton
2002-09-10 11:39 ` David Carlton [this message]
2002-09-10 16:15 ` Andrew Cagney
2002-09-12 11:35 ` Andrew Cagney
2002-09-10 8:56 ` Tom Tromey
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