Re: sparse (static analyzer) report

From: Neil Conway <neilc(at)samurai(dot)com>
To: Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>
Cc: Mark Wong <markw(at)osdl(dot)org>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: sparse (static analyzer) report
Date: 2005-01-15 02:30:37
Message-ID: 41E8804D.2060504@samurai.com
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BTW, perhaps one reason for the relatively small number of legitimate
issues picked up by sparse is that I ran sparse on the tree a month or
two ago and fixed some of the stylistic issues it reported. Most of the
stuff I didn't bother to fix looked like either a sparse bug, or a
marginal style improvement I didn't bother applying (like fixing 0 =>
NULL in dllist.c).

I've been meaning to investigate whether sparse can be used as something
more than just a fussy syntax checker (i.e. whether it can do any
meaningful static analysis for interesting properties), but I haven't
had a chance yet.

Alvaro Herrera wrote:
> It's complaining in several places about function as variables in
> function declarations (the multiple walkers and mutators for example);
> not sure how correct that is.

I believe the conclusion of prior discussions about making the
walker/mutator prototypes more precise is that it's not worth the cost.

-Neil

P.S. Hope everyone had a good holiday. I'm back at work on Monday.

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