Re: !foo vs foo == nil
Re: !foo vs foo == nil
- Subject: Re: !foo vs foo == nil
- From: Scott Ribe <email@hidden>
- Date: Thu, 21 Aug 2008 12:56:23 -0600
- Thread-topic: !foo vs foo == nil
>> Could you tell me which part of the standard states that NULL is 0.
> NULL *can* be 0, it isn't *necessarily* 0
It follows from the rules re conversions that it must be either 0, or 0 cast
to a pointer type. No value other than 0 is guaranteed to cast to the
machine's actual null address (whatever bit pattern that might actually be).
6.3.2.3 which you quoted, does not provide for any value other than 0.
--
Scott Ribe
email@hidden
http://www.killerbytes.com/
(303) 722-0567 voice
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