From: Chong Yidong <cyd@stupidchicken.com>
To: James Cloos <cloos@jhcloos.com>
Cc: emacs-devel@gnu.org
Subject: Re: Copying one Lisp_Object to another in C code?
Date: Thu, 01 Jul 2010 21:42:54 -0400 [thread overview]
Message-ID: <87630y3bhd.fsf@stupidchicken.com> (raw)
In-Reply-To: <m3tyoiu45d.fsf@carbon.jhcloos.org> (James Cloos's message of "Thu, 01 Jul 2010 20:18:46 -0400")
James Cloos <cloos@jhcloos.com> writes:
> Given:
>
> static void (foo)
> Lisp_Object foo;
> {
> Lisp_Object bar;
> /* etc */
>
> is it OK to do:
>
> bar = foo;
Yes.
> I presume GCPRO1 (foo) is in order either way?
Only if the code ends up calling eval, and for the benefit of the
platforms that don't use stack marking.
next prev parent reply other threads:[~2010-07-02 1:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-02 0:18 Copying one Lisp_Object to another in C code? James Cloos
2010-07-02 1:33 ` Ken Raeburn
2010-07-02 1:42 ` Chong Yidong [this message]
2010-07-02 9:06 ` Andreas Schwab
2010-07-02 15:37 ` James Cloos
2010-07-04 22:29 ` Stefan Monnier
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