On Tue, Jul 3, 2012 at 01:49 UTC, Michael W. Bombardieri <m...@ii.net> wrote: > Sorry, my fault. The intent was bitwise-and not bitwise-or. > Third version of the diff follows. > In regards to hand optimisations, we could be even worse > and do something like add rn_id values, subtract rn_len, check > if zero. :)
I don't understand why you don't simply write the obvious comparison of each to 1 for equality, anding them together logically, and let the compiler play the bit-twiddling games. Bitwise and will be correct, I believe, but obfuscated in a place where micro-optimization seems pointless. The same goes for the add then subtract alternative. Cheers, Dave Hart
