aligned_alloc at_thrd_exit constraint_handler_t ctime_s date EINVAL epoch errno errno_t gmtime_s if localtime_s p p99_abort_handler P99_CONSTRAINT_HANDLER p99_exit_handler p99_ignore_handler p99_report_handler P99_SETJMP_INLINE P99_STRERROR strerror_s strerror_s strerrorlen_s strnlen_s switch TIME_MONOTONIC TIME_UTC timespec_get v v violation

v() [1/2] P00_CLAUSE2 v ( _Pragma("weak exit_handler_s")  )