[libcxx-commits] [libcxx] [libc++] Ensure that `std::expected` has no tail padding (PR #69673)

[Jan Kokemüller via libcxx-commits]

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@@ -46,6 +46,7 @@
 
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jiixyj wrote:

I've added some tests that check that mutating operations such as `emplace()`, assignment and swap don't lead to overwritten objects in `expected`'s tail padding.

I haven't added tests for 100% of all relevant entry points -- but I guess the ones I added should pretty much uncover if an implementation does something weird with `[[no_unique_address]]`.

https://github.com/llvm/llvm-project/pull/69673