#include <signal.h>
int sigpending(sigset_t *set);
Partially implemented
IEEE Std 1003.1-2017
The sigpending() function shall store, in the location referenced by the set argument, the set of signals that are
blocked from delivery to the calling thread and that are pending on the process or the calling thread.
Upon successful completion, sigpending() shall return 0; otherwise, -1 shall be returned and errno set to
indicate the error.
No errors are defined.
Untested
None