Dan Sugalski wrote: > > > >I'm thinking that a n-dim array could just be a list of lists (of lists of > >lists of...) with the n-dim notation just being syntactic sugar (and perhaps > >helping with optimisation too). > > If you want efficiency, n-dimensional arrays really need to be a concrete > data type all of their own. That way one big block of memory can be > allocated and, if it's a typed array, properly sized. > > That doesn't mean that n-dimensional arrays won't be just sugar over the > standard list-o-list structure to start, but they won't have to stay that way. Yah, I did exactly this in Tie::Multidim... and it is *hairy*. And slow. -- John Porter We're building the house of the future together.
- Re: Some PDL issues (was Re: Test) Nathan Torkington
- Re: Some PDL issues (was Re: Test) Dan Sugalski
- Re: Some PDL issues (was Re: Test) Nathan Torkington
- Re: Some PDL issues (was Re: Test) Dan Sugalski
- Re: Some PDL issues (was Re: Test) c . soeller
- Re: Some PDL issues (was Re: Test) Dan Sugalski
- Re: Some PDL issues (was Re: Test) c . soeller
- multidim. containers David L. Nicol
- Re: multidim. containers Jeremy Howard
- Re: multidim. containers Dan Sugalski
- Re: multidim. containers John Porter
- Re: multidim. containers Christian Soeller
- Re: multidim. containers Dan Sugalski
- Re: Some PDL issues (was Re: Test) Tom Christiansen
- Re: Some PDL issues (was Re: Test) Nathan Torkington
- Re: Some PDL issues (was Re: Test) Tom Christiansen
- Re: Some PDL issues (was Re: Test) Karl Glazebrook
- Re: Some PDL issues (was Re: Test) c . soeller