[PATCH 1/3] Document max_align_t

[Paul Eggert]

On 2/10/26 04:38, Florian Weimer wrote:
> What about POSIX-defined types where object definitions are permitted,
> such as pthread_mutex_t?

POSIX does not require any of those types to have fundamental alignment. 
Strictly speaking, portable POSIX code must use aligned_alloc etc. for 
those types; it can't blindly use malloc.

Surely this is a defect in POSIX. Lots of code uses malloc for this sort 
of thing.

> I think authors of replacement mallocs need to know these rules.

Yes, I plan to work that into the next rev of the patch.