A. Jiang 63eb40eeb1
[libc++] Deprecate and remove meaningless <cxxx> headers (#111615)
This PR deprecates `<ccomplex>`, `<cstdbool>`, `<ctgmath>`, and
`<ciso646>` in C++17 and "removes" them in C++20 by special deprecation
warnings.

`<cstdalign>` is previously missing. This PR also tries to add them, and
then deprecates and "removes" `<cstdalign>`.

Papers:
- https://wg21.link/P0063R3
- https://wg21.link/P0619R4

Closes #99985.

---------

Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
2024-10-30 09:49:26 +08:00
..