DIP 1025--Dynamic Arrays Only Shrink, Never Grow--Community Review Round 1

[Nicholas Wilson]

On Monday, 11 November 2019 at 18:13:45 UTC, Ola Fosheim Grøstad 
wrote:
> Maybe a type that will share the binary interface of C++ span 
> and string_view. They are supposed to be the ones to use in 
> function C++ function signatures to increase interoperability 
> between libraries etc.
>
> Right now it is a bit difficult to say how span<> will be 
> adopted in C++ libraries, but I would imagine that it might end 
> up being used for matrices as well "span<span<T>>". So binary 
> compatibility could make sense.

(A bit OT)

We tried to convince Walter to make extern(C++) void f(int[]) 
Just Work™, to no avail, because he though that it would b 
"unintuitive" for people to have include a header to have to use 
it. Go figure.

I doubt that span<span<T>> will be widely used, because jagged 
matrices are a bit of an odd choice of structure, 
span<string_view> might get a bit of use though.