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Annotation of 43BSDReno/lib/libc/stdlib/atexit.3, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1990 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" This code is derived from software contributed to Berkeley by
                      5: .\" Chris Torek.
                      6: .\"
                      7: .\" Redistribution and use in source and binary forms are permitted
                      8: .\" provided that: (1) source distributions retain this entire copyright
                      9: .\" notice and comment, and (2) distributions including binaries display
                     10: .\" the following acknowledgement:  ``This product includes software
                     11: .\" developed by the University of California, Berkeley and its contributors''
                     12: .\" in the documentation or other materials provided with the distribution
                     13: .\" and in all advertising materials mentioning features or use of this
                     14: .\" software. Neither the name of the University nor the names of its
                     15: .\" contributors may be used to endorse or promote products derived
                     16: .\" from this software without specific prior written permission.
                     17: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     18: .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     19: .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     20: .\"
                     21: .\"    @(#)atexit.3    5.1 (Berkeley) 5/15/90
                     22: .\"
                     23: .TH ATEXIT 3 "May 15, 1990"
                     24: .UC 7
                     25: .SH NAME
                     26: atexit \- register a function to be called on exit
                     27: .SH SYNOPSIS
                     28: .B #include <stdlib.h>
                     29: .PP
                     30: .B "atexit(void (*function)())
                     31: .SH DESCRIPTION
                     32: .B Atexit
                     33: registers the given
                     34: .I function
                     35: to be called at program exit, whether via
                     36: .IR exit (3)
                     37: or via return from the program's
                     38: .BR main .
                     39: Functions so registered are called in reverse order;
                     40: no arguments are passed.
                     41: At least 32 functions can always be registered,
                     42: and more are allowed as long as sufficient memory can be allocated.
                     43: .SH RETURN VALUE
                     44: .B Atexit
                     45: returns 0 on success, \-1 on error.
                     46: .SH ERRORS
                     47: .TP
                     48: [ENOMEM]
                     49: No memory was available to add the function to the list.
                     50: The existing list of functions is unmodified.
                     51: .SH SEE ALSO
                     52: exit(3)
                     53: .SH STANDARDS
                     54: .B Atexit
                     55: conforms to ANSI X3.159-1989 (``ANSI C'').

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