Moving to AMD64 bit and porting issues

random@bubblescope.net random@bubblescope.net
Mon Oct 24 10:33:00 GMT 2005


Alex J. Dam wrote:

>On Sat, Oct 22, 2005 at 01:26:12AM -0400, Ernest L. Williams Jr. wrote:
>  
>
>>Should we use "NULL" to represent a null pointer or "0" to represent a
>>null pointer?
>>    
>>
>
>AFAIK, according to C++, they are equivalent.  See, for example,
>
>http://www.research.att.com/~bs/bs_faq2.html#null
>  
>

This is true, they are equivalent. I would still advise using NULL
myself, as then g++ will produce some (I feel) helpful warnings, for
example 'NULL==1' or 'NULL + 1' will both produce "warning: NULL used in
arithmetic".

Chris



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