[libcxx-commits] [libcxx] [libc++][mdspan] P3383R3: `mdspan.at()` (PR #175213)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

@eiytoq @thurstond I'm trying to fix this. It seems that `// UNSUPPORTED: no-exceptions` in the `libcxx/std/libcxx` subdirectory sometimes doesn't work with some builds. I'm trying to merge two test files and use `TEST_HAS_NO_EXCEPTIONS` for conditional compilation.

https://github.com/llvm/llvm-project/pull/175213