[P3982R2](https://wiki.isocpp.org/uploads/2026-03_Croydon-LWGStrawPollsStaging_-_P3982R2_-_Submdspan_slice_range.html) (Split strided_slice into extent_slice and range_slice for C++26)
P3982R2 (Split strided_slice into extent_slice and range_slice for C++26)