raise - send a signal to the caller
int raise(int sig);
The raise() function sends a signal to the calling process or thread. In a single-threaded program it is equivalent to
In a multithreaded program it is equivalent to
If the signal causes a handler to be called, raise() will return only after the signal handler has returned.
raise() returns 0 on success, and nonzero for failure.
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001, POSIX.1-2008, C89, C99.