tree b70d916393bd29ec336104d396b1accf6a3b601a
parent f652eff35083224f31264dc25a5b40b21003acb2
author Nikolas Klauser <nikolasklauser@berlin.de> 1732661606 +0100
committer Copybara-Service <copybara-worker@google.com> 1732661763 -0800

[libc++] Add __detected_or_t and use it to implement some of the allocator traits aliases (#115654)

This simplifies the implementation a bit, since we don't need a lot of
the `__has_x` classes anymore. We just need two template aliases to
implement the `allocator_traits` aliases now.

GitOrigin-RevId: 7ae61a36f94679370b9c1b4b1a13999d23d38a0c