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From: Christopher Howard <christopher.howard@qlfiles.net>
To: guile-user@gnu.org
Subject: Re: underscores in debug output?
Date: Wed, 30 Aug 2017 07:16:24 -0800	[thread overview]
Message-ID: <1504106184.20412.6.camel@qlfiles.net> (raw)
In-Reply-To: <87bmmxun8t.fsf@gmail.com>

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Ok, okay. Is there some way to affect that? Perhaps I have to use some
debug printing or stop points to see those values?

On Wed, 2017-08-30 at 22:46 +0800, Alex Vong wrote:
> Christopher Howard <ch.howard@zoho.com> writes:
> 
> > Hi, what does the underscore character mean in this debug output?
> > 
> >    159:37  5 (delete ((3 . "c") (((2 . "b") (()) 1) (5 . "e") (())
> > 1)
> > 2) 2)
> >    163:49  4 (delete ((2 . "b") (()) 1) _)
> >     152:9  3 (delete _ _)
> >     86:11  2 (skew _)
> >      64:6  1 (horizontal-left-link? _)
> >     46:11  0 (left-tree _)
> > 
> > Knowing the value of those parameters would be super helpful here,
> > but
> > for some reason they have been replaced by underscores.
> 
> My guess would be that those values are being garbage-collected.
> Since _
> is the pattern for matching an arbitary value, it is used to denote a
> garbage-collected value.
-- 
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  parent reply	other threads:[~2017-08-30 15:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-30  3:56 underscores in debug output? Christopher Howard
2017-08-30 14:46 ` Alex Vong
2017-08-30 15:13   ` Christopher Howard
2017-08-30 15:16   ` Christopher Howard
2017-08-30 15:16   ` Christopher Howard [this message]
2017-08-31 12:57 ` Matt Wette

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