Nikolas Klauser f5be5cdaad
[Clang] Add __builtin_common_type (#99473)
This implements the logic of the `common_type` base template as a
builtin alias. If there should be no `type` member, an empty class is
returned. Otherwise a specialization of a `type_identity`-like class is
returned. The base template (i.e. `std::common_type`) as well as the
empty class and `type_identity`-like struct are given as arguments to
the builtin.
2024-09-22 09:25:52 +02:00
..