From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: Florian Weimer <fweimer@redhat.com>
Cc: eggert@cs.ucla.edu, libc-alpha@sourceware.org
Subject: Re: Fix REALLOC_ZERO_BYTES_FREES comment
Date: Mon, 12 Apr 2021 08:19:24 +0200 [thread overview]
Message-ID: <mwim4st47n.fsf@tomate.loria.fr> (raw)
In-Reply-To: <8735vwows4.fsf@oldenburg.str.redhat.com> (message from Florian Weimer on Mon, 12 Apr 2021 08:13:31 +0200)
Hi Florian,
> > you write "If nonzero, ... should free p .... Otherwise ... should do the
> > equivalent of freeing p". Is there a difference between "free p" and "do the
> > equivalent of freeing p"?
>
> It's freeing p followed by malloc (0).
sorry I was not clear. The complete sentence proposed by Paul is
"Otherwise, realloc (p, 0) should do the equivalent of freeing p and returning
what malloc (0) would return."
Why not simply the following?
"Otherwise, realloc (p, 0) should free p and return what malloc (0) would."
Am I overlooking something? What puzzles me is why we write "free p" in the
first part and "do the equivalent of freeing p" in the second one.
Paul
next prev parent reply other threads:[~2021-04-12 6:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-11 21:42 Paul Eggert
2021-04-12 6:05 ` Paul Zimmermann
2021-04-12 6:13 ` Florian Weimer
2021-04-12 6:19 ` Paul Zimmermann [this message]
2021-04-12 7:48 ` Paul Eggert
2021-04-12 7:53 ` Florian Weimer
2021-04-12 19:44 ` DJ Delorie
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