Does it make sense to replace custom ColVecs, RowVecs code with ArraysOfArrays library

[FelixBenning]

see https://juliaarrays.github.io/ArraysOfArrays.jl/stable/. This appears to do the same thing. Just more general. This would allow more than matrices to be passed. I.e. you could have more than 1-dimensional input vectors.

[willtebbutt]

It's an option. Taking a look at the code, the implementation looks reasonably complicated in comparison to our ColVecs / RowVecs, which makes me reluctant to adopt it.

That being said, there's nothing to stop you writing an extension to KernelFunctions which directly extends our kernels to interoperate nicely with those from ArrayOfArrays.jl, without us removing ColVecs / RowVecs.

[devmotion]

IIRC the idea (a while back) was rather to use eachrow and eachcol since starting from Julia 1.9 (?) they return an array and not an iterator anymore: JuliaLang/julia#32310

[devmotion]

See eg #394 (comment)

[FelixBenning]

ah right eachrow and eachcol seems like the best solution