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Date:      Sat, 30 Jun 2001 15:00:05 -0700 (PDT)
From:      Dima Dorfman <dima@unixfreak.org>
To:        freebsd-doc@freebsd.org
Subject:   Re: docs/28555: [PATCH] style(9) isn't explicit about booleans for testing. 
Message-ID:  <200106302200.f5UM05W97431@freefall.freebsd.org>

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The following reply was made to PR docs/28555; it has been noted by GNATS.

From: Dima Dorfman <dima@unixfreak.org>
To: Mike Meyer <mwm@mired.org>
Cc: FreeBSD-gnats-submit@freebsd.org
Subject: Re: docs/28555: [PATCH] style(9) isn't explicit about booleans for testing. 
Date: Sat, 30 Jun 2001 14:57:49 -0700

 Mike Meyer <mwm@mired.org> writes:
 > 
 > >Number:         28555
 > >Category:       docs
 > >Synopsis:       [PATCH] style(9) isn't explicit about booleans for testing.
 > >Description:
 > 
 > The style(9) page says not to use ! for testing values unless the
 > value is a boolean. It also says to test pointers against NULL. This
 > leaves open the question of how other values that aren't booleans
 > should be tested.
 > 
 > >How-To-Repeat:
 > 
 > Read the man page to try and decide if you should write "if (x)" or
 > if (x != 0).
 
 I think it is quite clear on the subject.  If it's not a boolean,
 don't treat it like one; i.e., compare it against the value you're
 looking for.  '0' may not always be that value.
 
 Regardless, this does not belong as a PR, let alone in the docs/
 category.  It belongs as a post on -hackers, asking what people think,
 not as a change request.  Since *developers* are expected to follow
 style(9), it is the *developers* (i.e., -hackers@) that you should be
 proposing the change to.
 
 					Dima Dorfman
 					dima@unixfreak.org

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