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RedHat 9 (Linux i386) - man page for on_exit (redhat section 3)

ON_EXIT(3)			    Linux Programmer's Manual			       ON_EXIT(3)

NAME
       on_exit - register a function to be called at normal program termination.

SYNOPSIS
       #include <stdlib.h>

       int on_exit(void (*function)(int , void *), void *arg);

DESCRIPTION
       The  on_exit() function registers the given function to be called at normal program termi-
       nation, 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().

RETURN VALUE
       The  on_exit() function returns the value 0 if successful; otherwise it returns a non-zero
       value.

CONFORMING TO
       This function comes from SunOS, but is also present in libc4, libc5 and glibc.

SEE ALSO
       atexit(3), exit(3)

GNU					    1993-04-02				       ON_EXIT(3)


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