That might be true, but if so, then everyone below who is claiming 'ZOMG! The article is totally wrong because C99 added restricted pointers!' is wrong. Also,

That might be true, but if so, then everyone below who is claiming 'ZOMG! The article is totally wrong because C99 added restricted pointers!' is wrong. Also, I find it weird that the C99 committee, which was full of compiler vendors, got so excited about adding a fairly dangerous (and IMHO hard to use correctly) feature to the language without bothering to update their optimisers to make use of it. The only benefit that restricted pointers offer is better optimization; to add support for them without adding better optimization is a complete waste of everyone's time.