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Command: atexit | Section: 3 | Source: MINIX | File: atexit.3
ATEXIT(3) FreeBSD Library Functions Manual ATEXIT(3)
NAME
atexit - register a function to be called on exit
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
atexit(void (*function)(void));
DESCRIPTION
The atexit() function registers the given function to be called at
program exit, whether via exit(3) or via return from the program's main.
Functions so registered are called in reverse order; no arguments are
passed. At least 32 functions can always be registered, and more are
allowed as long as sufficient memory can be allocated.
RETURN VALUES
The atexit() function returns the value 0 if successful; otherwise the
value -1 is returned and the global variable errno is set to indicate the
error.
ERRORS
[ENOMEM] No memory was available to add the function to the
list. The existing list of functions is unmodified.
SEE ALSO
at_quick_exit(3), exit(3), quick_exit(3)
STANDARDS
The atexit() function conforms to ANSI X3.159-1989 ("ANSI C89").
FreeBSD 14.1-RELEASE-p8 June 4, 1993 FreeBSD 14.1-RELEASE-p8