Re: offsetof

darkknight wrote: 
On Sat, 01 Oct 2005 01:20:28 +1200, darkknight wrote:

On Fri, 30 Sep 2005 13:27:44 +0100, Flash Gordon wrote:

darkknight wrote:

<snip stuff that seems about right>

The expression (type*)0 does NOT create a NULL pointer constant unless
the type of "type" is void  i.e. it is (void*)0.

Wrong. It explicitly IS a null pointer constant of the specified type. In fact, with (type*)0 the 0 is a null pointer constant and, at run time, it explicitly gives you a null pointer. 

Please quote the relevant sections of the standard to support your
claim.

Never mind. I found it. You are right.

There was me about to admit that whilst the 0 in the above is a null pointer constant, and you do get a null pointer of the specified type, you don't get a null pointer *constant* of the specified type. A subtle point perhaps, and not one that affects programming in practice, but possible valid. :-)
--
Flash Gordon
Living in interesting times.
Although my email address says spam, it is real and I read it.
.

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