On 2012-06-08 22:47, Era Scarecrow wrote: > On Friday, 8 June 2012 at 16:33:28 UTC, Matthias Walter wrote: >> Hi, >> >> trying to traverse the entries of a std.bitmanip.BitArray I stumbled >> upon the following problem: >> >> In case I want to accept const(BitArray) objects, it shall look like >> the following (maybe using "ref const(bool)" for the delegate >> parameter?): >> >> int opApply(scope int delegate(bool) dg) const > >> >> Can one glue both things together into a single routine (using inout >> magic or whatever)? > > I want to say you can't, because ref bool. If you ignore the reference, > you don't need the non-const version (I think). > > I am currently working on BitArray updates, and it is const/immutable > friendly according to as many tests as I could come up with for valid > usage; This has taught me a lot on using templates, traits, constraints > and how inout actually works. I haven't tried for a bit but I can try > once more to send my code to GitHub, then you can give it a try.
First, thank you for your answer. I've already made some tiny modifications in order to make BitArray work for my purposes: https://github.com/xammy/phobos/commit/eb46d99217f2bf1e6d173964e2954248b08146d6 If you plan to create pull requests for your changes - please consider my changes as well. When do you expect to finish, i.e., create a pull request for phobos?
