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From: Doug Evans <dje@transmeta.com>
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Date: Fri, 05 Apr 2002 08:46:00 -0000
To: Eli Zaretskii <eliz@is.elta.co.il>
Cc: gdb@sources.redhat.com
Subject: Re: STOPPED_BY_WATCHPOINT peculiarity
In-Reply-To: <6137-Fri05Apr2002141806+0300-eliz@is.elta.co.il>
References: <200204022154.NAA10074@casey.transmeta.com>
	<6137-Fri05Apr2002141806+0300-eliz@is.elta.co.il>
X-SW-Source: 2002-04/txt/msg00067.txt.bz2

Eli Zaretskii writes:
 > > Date: Tue, 2 Apr 2002 13:54:47 -0800
 > > From: Doug Evans <dje@transmeta.com>
 > > 
 > >     /* It may be possible to simply continue after a watchpoint.  */
 > >     if (HAVE_CONTINUABLE_WATCHPOINT)
 > >       STOPPED_BY_WATCHPOINT (ecs->ws);
 > > 
 > > STOPPED_BY_WATCHPOINT is a predicate.
 > > Therefore at first glance this code is pointless.
 > 
 > Who said predicates cannot have side effects?

They can, but given the choice they don't.
It's poor programming practice.
[pedantic: setting aside predicates that do result caching and the like]