ATEXIT(3)               NetBSD 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 pro- gram 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''). NetBSD 8.0 June 4, 1993 NetBSD 8.0

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