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.\" Copyright (c) 2011 David Chisnall .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD: release/9.1.0/lib/libc/stdlib/at_quick_exit.3 237216 2012-06-18 04:55:07Z eadler $ .\" .Dd December 7, 2011 .Dt AT_QUICK_EXIT 3 .Os .Sh NAME .Nm at_quick_exit .Nd registers a cleanup function to run on quick exit .Sh LIBRARY .Lb libc .Sh SYNOPSIS .In stdlib.h .Ft int .Fn at_quick_exit "void (*func)(void)" .Sh DESCRIPTION The .Fn at_quick_exit function registers a cleanup function to be called when the program exits as a result of calling .Xr quick_exit 3 . The cleanup functions are called in the reverse order and will not be called if the program exits by calling .Xr exit 3 , .Xr _Exit 3 , or .Xr abort 3 . .Sh RETURN VALUES The .Fn at_quick_exit function returns the value 0 if successful and a non-zero value on failure. .Sh SEE ALSO .Xr exit 3 , .Xr quick_exit 3 .Sh STANDARDS The .Fn at_quick_exit function conforms to the C1x draft specification.