25 Jul
2009
25 Jul
'09
5:13 a.m.
AMDG 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)?
How would you implement popFront() without storing two iterators, an iterator and a bool, or something? In Christ, Steven Watanabe