Comment by eqvinox
6 days ago
Annex K (which is what that is) is sufficiently unpopular as to have been under discussion to be removed from the standard. Few implementations exist, and even fewer conform to the standard (e.g. Microsoft's doesn't).
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1967.htm
Furthermore, since the kernel uses no C library, it's the kernel developer's choices what to implement and use.
Unpopular because it came from Microsoft. But it works, and with my safeclib even usable in the kernel.
The cited document is outdated. This is a better overview: https://rurban.github.io/safeclib/doc/safec-3.9/d6/d31/md_do...
Isn't Microsoft the same group that still won't allow you to write "import <cstdint>" in C++ ?
VC++ has the only actually usable header units implementation across C++ compilers.