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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: David Reitter <david.reitter@gmail.com>
Cc: emacs- devel <emacs-devel@gnu.org>
Subject: Re: crashes during Feval from within WINDOW_WANTS_HEADER_LINE_P
Date: Sun, 02 Mar 2008 00:46:46 -0500	[thread overview]
Message-ID: <jwv4pbpznl1.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <76EEBC00-5E78-4BC8-8AE6-8D657F71E94E@gmail.com> (David Reitter's message of "Sat, 1 Mar 2008 12:03:37 +0000")

> I'm getting crashes after extending a macro.  I would appreciate your help.

> I have added to the WINDOW_WANTS_HEADER_LINE_P macro (dispextern.h)
> a function call to an elisp function whose name is stored in `window- 
> wants-header-line-function':

>       && (NILP(Vwindow_wants_header_line_function) ||                   \
> 	  !NILP (safe_call_win(Vwindow_wants_header_line_function, (W)))))

I'd be surprised if this macro is only used at places where it is safe
to run elisp code.  When doing such things, I highly recommend you run
with -DENABLE_CHECKING (which I don't guarantee will catch your
problem, but may).


        Stefan




      parent reply	other threads:[~2008-03-02  5:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-01 12:03 crashes during Feval from within WINDOW_WANTS_HEADER_LINE_P David Reitter
2008-03-01 20:58 ` Nick Roberts
2008-03-01 21:35   ` David Reitter
2008-03-02  7:53     ` Nick Roberts
2008-03-02  5:46 ` Stefan Monnier [this message]

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