EXIT

exit ? cause normal program termination

#include <stdlib.h>

void exit(int status);

The exit() function causes normal program termination and the value of status is returned to the parent. All functions registered with atexit() and on_exit() are called in the reverse order of their registration, and all open streams are flushed and closed.

The exit() function does not return.

SVID 3, POSIX, BSD 4.3, ISO 9899

_exit(2), atexit(3), on_exit(3)