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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: gdb doc
Date: Wed, 21 Mar 2007 21:58:59 +0200
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> From: A Soare <alinsoar@voila.fr>
> Date: Wed, 21 Mar 2007 14:39:27 +0100 (CET)
> 
> I do not find in documentation how can I set a condition for gdb to stop to a breakpoint in Feval when such a condition is accomplished:
> 
> 1. lisp function name that is evaluated is "+".

Compare the car of the Feval's argument with Qplus.

> 2. number of arguments is eq with 10.

Try calling Flength on the cdr of the Feval's arguments, and compare
the result with 10.