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From: Junio C Hamano <gitster@pobox.com>
To: Michael Witten <mfwitten@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [RFC 1/3] Alternates API: Untangle the interface
Date: Wed, 30 Mar 2011 15:28:43 -0700	[thread overview]
Message-ID: <7v1v1omeec.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <5ed7886ec5e12c8e3a5f45d19625a4f5d2cdd38a.1301521243.git.mfwitten@gmail.com> (Michael Witten's message of "Wed, 30 Mar 2011 20:43:18 +0000")

Michael Witten <mfwitten@gmail.com> writes:

> diff --git a/transport.c b/transport.c
> index a02f79a..c61723f 100644
> --- a/transport.c
> +++ b/transport.c
> @@ -1190,14 +1190,13 @@ literal_copy:
>  	return xstrdup(url);
>  }
>  
> -int refs_from_alternate_cb(struct alternate_object_database *e, void *cb)
> +int refs_from_alternate_cb(struct alternate_object_database *e, alternate_ref_fn ref_fn)
>  {

Adding an extra "fn" is Ok, but I'd rather not to see removal of generic
callback data pointer if the _only_ reason you are doing so is "currently
nobody uses it".

Besides, I see "a function pointer and a data pointer cannot be held in a
single variable" as an academic mental mastu^wexercise that is useless in
real life.  Are there real platforms that matter where (void *) cannot
hold a pointer to a function?

  reply	other threads:[~2011-03-30 22:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-29 15:28 [RFC 2/2] Future Proofing: Pass around pointers to either functions or data Michael Witten
2011-03-29 15:02 ` [RFC 1/2] Portability: Convert strictly between function pointers Michael Witten
2011-03-30 10:09 ` [RFC 2/2] Future Proofing: Pass around pointers to either functions or data Erik Faye-Lund
2011-03-30 15:02   ` Michael Witten
2011-03-30 19:41   ` Junio C Hamano
2011-03-30 21:40 ` [RFC 0/3] Alternates API Michael Witten
2011-03-30 21:24   ` [RFC 2/3] Alternates API: Improve naming Michael Witten
2011-03-30 21:28     ` [RFC 3/3] Alternates API: Remove unused parameter Michael Witten
2011-03-30 20:43       ` [RFC 1/3] Alternates API: Untangle the interface Michael Witten
2011-03-30 22:28         ` Junio C Hamano [this message]
2011-03-30 22:46       ` [RFC 3/3] Alternates API: Remove unused parameter Junio C Hamano
2011-03-30 22:31     ` [RFC 2/3] Alternates API: Improve naming Junio C Hamano

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