BitArray/BitFields - Review

[Era Scarecrow]

On Saturday, 28 July 2012 at 22:43:22 UTC, bearophile wrote:
> Era Scarecrow:
>
>> BitFields:
>> I've concentrated on adding default values.
>
> Good, that's useful.
>
>
> Regarding BitArray I have written some ER:
>
> http://d.puremagic.com/issues/show_bug.cgi?id=4123
> http://d.puremagic.com/issues/show_bug.cgi?id=4124
> http://d.puremagic.com/issues/show_bug.cgi?id=4717
> http://d.puremagic.com/issues/show_bug.cgi?id=7487
> http://d.puremagic.com/issues/show_bug.cgi?id=7488
> http://d.puremagic.com/issues/show_bug.cgi?id=7490

4123 - fixed
4124 - Set/reset all bits ie:
   BitArray ba = BitArray(100);
   ba[] = true;
Others haven't been done yet.

4717 - Same as 4124, none others done yet.
7487 - Done. When prepending it extends the array to size_t extra 
and slowly backtracks until it needs to do it again. To go 
further, have to disable re-slicing of the allocated array.

Or perhaps a 'start at end' during constructor stage. Hmmm..

7488 - Done, union used and is 'compact' version (by default or 
resized and can fit)

7490 - haven't touched yet. :(

> Related:
> http://d.puremagic.com/issues/show_bug.cgi?id=6697

  Not so sure. Could make a multi-dimentional one that returns 
slices to various sections, but  that's iffy. I'd need an example 
of how you'd use it with BitArray before I could build a solution.