[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:

Yes, it's difficult to see in the diff, but I added some data layout tests in `libcxx/test/libcxx/utilities/expected/expected.{expected,void}/no_unique_address.compile.pass.cpp`.

Besides the data layout, this patch shouldn't really change anything else about the behavior. Maybe I should add some tests where the previous layout actually resulted in catastrophic failure, though?

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