New function proposal: "roaring_move_uint32_iterator_equalorsmaller"

[dtenny]

Basically like roaring_move_uint32_iterator_equalorlarger, except that its purpose is to move through elements in descending order instead of ascending order.

For use in conjunction with roaring_init_iterator_last.

Seem like an oversight that the proposed function is missing. For now my foreign function wrappers call roaring_init_iterator_last and then roaring_previous_uint32_iterator until the desired values are found, but this is not efficient.

[lemire]

@dtenny Would you be willing to produce a pull request ?

[dtenny]

Hi, I know, that'd be the civilized thing to do :-) I'm pretty focused on the lisp side of things at the moment, so it's unlikely I'll find time to start with C PR's. I'll let you know if I decide to make a run at it though. If you're curious what the lisp apis look like you can find it in my cl-roaring repo. Still a WIP though, enough to be useful to lispers wanting to use CRoaring, but not necessarily complete.