Jan Kokemüller 134c915955
[libc++] Fix UB in <expected> related to "has value" flag (#68552) (#68733)
The calls to std::construct_at might overwrite the previously set
__has_value_ flag in the case where the flag is overlapping with
the actual value or error being stored (since we use [[no_unique_address]]).
To fix this issue, this patch ensures that we initialize the
__has_value_ flag after we call std::construct_at.

Fixes #68552
2023-10-30 14:56:03 -04:00
..
2023-05-16 14:30:36 -07:00