Originální popis anglicky:
on_exit - register a function to be called at normal program termination
Návod, kniha: Linux Programmer's Manual
#include <stdlib.h>
int on_exit(void (*function)(int , void *), void *arg);
The
on_exit() function registers the given
function to be called
at normal program termination, whether via
exit(3) or via return from
the program's
main. The
function is passed the argument to
exit(3) and the
arg argument from
on_exit().
The
on_exit() function returns the value 0 if successful; otherwise it
returns a non-zero value.
This function comes from SunOS 4, but is also present in libc4, libc5 and glibc.
It no longer occurs in Solaris (SunOS 5). Avoid this function, and use the
standard
atexit(3) instead.
_exit(3),
atexit(3),
exit(3)
