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List:       kde-core-devel
Subject:    Re: Review Request: KColorSpace::KHCY::KHCY(const & QColor)
From:       Oswald Buddenhagen <ossi () kde ! org>
Date:       2009-06-25 13:48:24
Message-ID: 20090625134824.GA28318 () ugly ! local
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On Thu, Jun 25, 2009 at 03:06:26PM +0200, Benoît Jacob wrote:
> *** Can I use qFuzzyCompare to check if a number is close to zero?
> 
> Never use qFuzzyCompare directly to check whether a number is
> approximately zero. Doing
>   qFuzzyCompare(p,0)
> expands to
>   return (qAbs(p) <= 0);
> which is an exact comparison, it's basically the same as "p == 0" !
> 
fwiw, qt master has qFuzzyIsNull() (or some similar name).

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