P3663R3: Future-proof `submdspan_mapping`
Open
c++26
libc++
wg21-paper
- Dominant language
- LLVM
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Description
**Link:** https://wg21.link/P3663R3
Feature-test macros (increased):
```c++
#define __cpp_lib_submdspan 202511L // freestanding, also in
```
Related issues:
- #118373
- #105389
- #158316
- #148203
- #148149
- #133585
- #105425
- #141499
- #105308
Implementations:
- https://github.com/kokkos/mdspan
- https://github.com/uonrobotics/ctmd
Intended applications:
- sliced/spliced aligned static extent linear arithmetic container based SIMD math
- determinant minor and Hodge-Laplacian algorithms
- rotor/motor orientation
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