I am not following this thread but when I hear of things like boost::numeric::interval<void *>, I have to wonder: what is it you are trying to do? Interval is a *numeric* type, intended for *computation* (i.e., operator+,-,*,/). It is not really intended for integral types, and certainly not for pointer types. If you want an interval of void*, maybe you should consider std::complex<void*> (just kidding, but you can actually see the parallel), or more likely std::pair<void*>. -- Hervé Brönnimann hervebronnimann@mac.com On Jun 6, 2008, at 4:14 AM, Phil Bouchard wrote:
"Simonson, Lucanus J" <lucanus.j.simonson@intel.com> wrote in message news: 33E1C72C74DBE747B7B59C1740F7443703593075@orsmsx417.amr.corp.intel.com. ..
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I forgot to mention that casting the pointer to signed integer will cause problems even if they happen to be the same bit width. This is because pointer values with a 1 in the msb will cast to negative integer values, which will cause the order of p and p+s to become inverted, leading to an error condition in numeric::interval, which will result in a null interval, according to interval's documentation. That would be difficult to debug.
Like previously mentionned that cast is simply a temporary solution but hopefully void * types will be easy to integrate into interval<>. I will also change int for unsigned until void * works.
-Phil
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