25 Jul
2009
25 Jul
'09
5:11 a.m.
David Abrahams wrote:
on Fri Jul 24 2009, Andrei Alexandrescu <andrei-AT-metalanguage.com> wrote:
Another example of an iterator-based design that's not easy to replicate with ranges is Boost Multi-Index. (Thanks Emil Dotchevski for pointing that out during my talk. (Marshall Clow promised the video will be available Real Real Soon Now(tm).)) In Multi-Index, indexes store iterators; storing ranges would often waste twice the space for little or no benefit.
Can't you handle that by storing a range that always contains only one element: [iterator,iterator+1)?
You can, but that doubles the memory eaten by the index. Andrei