NAME
atexit — register a function to be called at program termination
SYNOPSIS
#include <stdlib.h>
int atexit(void (*func)(void));
DESCRIPTION
atexit()
registers the function
func
to be called, without arguments, at normal program termination.
Functions registered by
atexit()
are called in reverse order of registration.
An
atexit()
call during exit processing is always unsuccessful.
The number of registered functions should not exceed
ATEXIT_MAX
as specified in
<limits.h>.
When necessary,
crt0()
or
dld
(see
crt0(3)
and
dld.sl(5)
for
PA-RISC systems
or
dld.so(5)
for
Itanium-based systems)
registers one or more functions with
atexit()
to allow some processing at normal program termination. This registration
occurs before any other.
RETURN VALUE
atexit()
returns zero if the registration is successful; non-zero if unsuccessful.
STANDARDS CONFORMANCE
atexit(): AES, SVID3, XPG4, ANSI C
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