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Re: [PATCH] src/eval.c (Fapply): Remove unnecessary goto
From: |
Lee Duhem |
Subject: |
Re: [PATCH] src/eval.c (Fapply): Remove unnecessary goto |
Date: |
Fri, 5 Dec 2014 16:17:00 +0800 |
Hi Stefan,
Thank you for your comments.
On Fri, Dec 5, 2014 at 3:18 AM, Stefan Monnier <address@hidden> wrote:
>
> Oops, indeed. Installed in emacs-24.
Why do not change the master branch?
Let me guess. Because this is a bug fix, so it should come to
current release branch, aka emacs-24, and master branch will
get this change when emacs-24 is merged to it. Am I correct?
>
>> + * eval.c (Fapply): Remove unnecessary goto.
>
> Yes, that function was poorly structured. I had some restructuring in
> my local tree as well for a long time, so I took advantage of your patch
> to do a more thorough job (installed in master).
>
>> - if (numargs < XSUBR (fun)->min_args
>> - || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs))
>> - goto funcall; /* Let funcall get the error. */
>> - else if (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args >
>> numargs)
>> + if (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args > numargs)
>
> This is actually not quite right:
Now I see. I missed a possible error condition.
>
>> + * eval.c(Fbacktrace): Avoid unnecessary strlen calls.
>
> I'm ambivalent on this one: printing the backtrace really shouldn't be
> performance sensitive, and using -1 makes it easier to change the code.
Good point.
Sincerely,
lee