I've been wondering if I should mention that using int for an index is a bad idea because the standard only guarantees it's 16 bits. You should use size_t inste

I've been wondering if I should mention that using int for an index is a bad idea because the standard only guarantees it's 16 bits. You should use size_t instead. And in C size_t is unsigned. My take is all of the low hanging fruit optimizations that the standard enables has been picked a long time ago. Everything left is problematic.