On Sun, Nov 11, 2001 at 08:57:15PM -0800, Brent Dax wrote: > You get the idea? And as for multidimensional stuff, what's wrong with: > > fetchlex P1, "@lol" > fetchary P2, P1, 1 > fetchary P3, P2, 2 > #...
Consider (from exegesis 2): my int @hit_count is dim(100,366,24); This array is supposed to contain bare integer values as opposed to scalars in order to be memory efficient. It has been said that there would be a single PMC which references the appropriate block or blocks of memory. Also, any array access, for example @hitcount[5][5][6] has to be done using the vtable of @hitcount as there is no scalar for each entry. Hence the variable number of keys. > Yes, I know, some people don't like that multidimensional arrays are > internally arrays of arrays, but that doesn't necessarily need to be > obvious to the outside world, does it? Internally, the nested arrays > could have tweaked vtables to do whatever they ought to do. You potentially make all multidimensional arrays slower this way, if you HAVE to do a memory lookup for each dimension to find an entry, as opposed to directly calculating its offset in a contiguous block of memory. -- Jason
