Deletes a specified individual signal.
#include <signal.h> int sigdelset (sigset_t *set, int sig_number;)
The sigdelset function deletes the individual signal specified by sig_number from the signal set specified by set.
This function operates on data objects that you can address by the application, not on any set of signals known to the system. For example, this function does not operate on the set blocked from delivery to a process or the set pending for a process.
| 0 | Indicates success. |
| -1 | Indicates an error; errno is set to one
of the following values:
|