asctime
=======

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/asctime.html

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is deprecated in C23. Likewise, POSIX says this function is obsolescent and it is planned to be removed in a future version. Portable applications can use strftime (or even sprintf) instead.

  * This function may overflow its internal buffer if an invalid year is passed.