Thank you everyone, I think I was pretty far off base in representing the
work Tobias had done and both Tobias and Matt have clarified well.
* There are two child arrays not necessarily for slicing but more to help
distinguish between the logical length (there are no buffers with the
logical
> why would the run ends and values have the same offset?
That's why I liked the idea of the children arrays and having the parent
offset being a "logical offset" and children being "physical offsets"
because it maintains the independence of the arrays. Slicing the RLE is
simply just setting the
> {
> length: 2
> offset: 6
> rle: {
> length: 1 // actually physical length
> offset: 2
> buffer: [3, 5,8]
> }
> values: {
> length: 1
> offset: 2
> buffer: [5, 6, 7]
> }
> }
> Does this make sense?
I think this is a valid way
>
> Slicing is part of the C data interface (with the offset member).
OK, so refreshing myself for the C data interface, IIUC, I think one needs
to hack RLE at a parent Array with two children arrays, because otherwise
in general, I don't think I see a way of actually communicating buffer size
at
Le 15/09/2022 à 10:14, Micah Kornfield a écrit :
I agree slicing can be tricky here. Since slicing is not part of the
specification, maybe there should be two separate discussions here. I'll
be honest, I forget exactly how slicing works in the C++ implementation,
but is
Slicing is part of
I agree slicing can be tricky here. Since slicing is not part of the
specification, maybe there should be two separate discussions here. I'll
be honest, I forget exactly how slicing works in the C++ implementation,
but is
> Say you want to slice the RLE array from Logical Offset 4 (which
On Thu, 15 Sep 2022 09:25:53 +0200
Antoine Pitrou wrote:
>
> Why would the run ends and the values have the same offset?
> Also, how do you interpret the run ends if you have a physical offset
> into the values array?
>
>
> Say you have the logical values: [5, 5, 5, 6, 6, 7, 7, 7]
>
> Run
Le 14/09/2022 à 20:18, Weston Pace a écrit :
I will clarify the offset problem. It essentially boils down to "if
you don't have constant access to elements then an array length offset
does not give you constant access to buffer offsets".
We start with an RLE array of length 200. We slice it
