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List:       kde-core-devel
Subject:    Re: c++ question.
From:       Thiago Macieira <thiago () kde ! org>
Date:       2010-09-03 5:46:19
Message-ID: 201009030746.28467.thiago () kde ! org
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On Thursday 2. September 2010 22.36.02 Tomaz Canabrava wrote:
> >   I do not know what this methods do,
> >   They use a [-1] array index, perhaps to do pointer arithmetic?, but
> 
> no pointer aritimetic. it's just that the -1 is actually the biggest
> number  you can find using an unsigned int. so, it's 0xFFFFFFFFFFFFFFFFFFF
> ( or something near =p )

Actually, it's both.

-1 is the highest possible unsigned number, but in this case it's used as a 
negative index.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
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