C++ Weekly - Ep 401 - C++23's chunk view and stride view

[@SergeyIvanov1337]

I love these in rust and am glad to see them being incorporated into c++

[@vanandgasparyan1430]

I think the difference between chunk_by and split is the latter filters out the delimiter.

[@abhinavk0929]

C++ should have langauge feature similar to iota (because it is far too long to type) but the reason I think it should be a language feature is to somehow cover the use cases of index_sequence and integer_sequence too (that'd also reduce the need for their 'make' counterparts). Just think about it, a simple terse syntax to get a range of integers whether you need it at runtime or compile-time. How does that sound?

[@anon_y_mousse]

Hrm. I'm still on g++ 11.2, so it's not going to work for me. I'm leery of manually updating the compiler because of past issues, so until my distro updates this will be yet another feature I can't make use of in conventional ways. It also illustrates a problem with languages taking so long to finally add features that should've existed since the beginning.

[@ohwow2074]

Change your distro. It's as simple as that. Slow moving distros slow us down.

[@anon_y_mousse]

@@ohwow2074 Nah, I'll just not make use of a barely useful feature that should've always existed anyway, or I'll find a Boost equivalent.

[@ohwow2074]

@@anon_y_mousse it's not just about ranges. You're missing out on a lot of new features.

[@anon_y_mousse]

@@ohwow2074 Have any examples of something I can't easily do myself?

[@ohwow2074]

@@anon_y_mousse span? Coroutines and concepts? Deducing this? Spaceship operator?

[@shadergz]

Have you guys already take a loop at ranges-v3 library?

[@Sebanisu]

hmm the title says stride_view but I don't think you talked about it in the video.

[@abhinavk0929]

he did talk about it towards the end

[@TheMR-777]

The std::views::chunk and std::views::stride are actually the objects of std::ranges::chunk_view and std::ranges::stride_view. So, effectively, they're the same. (you can give it a try mate)

[@Sebanisu]

​@@abhinavk0929I must have not noticed it. In my mind I heard him talk about chunk_by then the end of the video. After rewatching the end I see I was wrong heh.

[@benjaminshinar9509]

If i get this correctly then stride is 'chunk and take the first element'?

[@TheMR-777]

@@benjaminshinar9509 Yeah you can say. But in my mind, stride(n) is something like: for (int i = 0; i < x; i += n) { /*you get the point*/ }

[@jhbonarius]

Short isn't a problem At least, that what's she said. Badaboom