Re: [PATCH v2 2/2] pack-objects: don't loosen objects available in alternate or kept packs

From: Nicolas Pitre <nico@cam.org>
Date: Mar 22, 2009, 17:40 UTC
Message-ID: <alpine.LFD.2.00.0903221325380.30483@xanadu.home>
In-Reply-To: <ee63ef30903220748q4e78e626t2ea3930809a670d6@mail.gmail.com>

On Sun, 22 Mar 2009, Brandon Casey wrote:

Show 19 quoted lines

> >> +static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1)
> >> +{
> >> +     static struct packed_git *last_found = (void *)1;
> >> +     struct packed_git *p;
> >> +
> >> +     p = (last_found == (void *)1) ? packed_git : last_found;
> >
> > Why (void *)1, not like:
> >
> >        static struct packed_git *last_found;
> >        struct packed_git *p = last_found ? last_found : packed_git;
> >
> > Am I missing something?
> 
> Heh, I am missing something too.  Maybe I should have _thought_ more
> about this code that I copied from sha1_file.c: find_pack_entry() and
> I would have asked the same question about _that_ code.
> 
> Maybe Nico has some idea?

Well... I know this is my code, and I must have had a reason to keep the NULL pointer distinct from the initial value. But at the moment I just can't remember about it, and the code doesn't show a need for it either.

Nicolas