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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
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1.\" Copyright (c) 1990, 1991 The Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\" This code is derived from software contributed to Berkeley by
5.\" the American National Standards Committee X3, on Information
6.\" Processing Systems.
7.\"
8.\" Redistribution and use in source and binary forms, with or without
9.\" modification, are permitted provided that the following conditions
10.\" are met:
11.\" 1. Redistributions of source code must retain the above copyright
12.\" notice, this list of conditions and the following disclaimer.
13.\" 2. Redistributions in binary form must reproduce the above copyright
14.\" notice, this list of conditions and the following disclaimer in the
15.\" documentation and/or other materials provided with the distribution.
16.\" 3. Neither the name of the University nor the names of its contributors
17.\" may be used to endorse or promote products derived from this software
18.\" without specific prior written permission.
19.\"
20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" $OpenBSD: labs.3,v 1.17 2019/01/18 07:32:17 schwarze Exp $
33.\"
34.Dd $Mdocdate: January 18 2019 $
35.Dt LABS 3
36.Os
37.Sh NAME
38.Nm labs ,
39.Nm llabs ,
40.Nm qabs
41.Nd return the absolute value of a long integer
42.Sh SYNOPSIS
43.In limits.h
44.In stdlib.h
45.Ft long
46.Fn labs "long i"
47.Ft long long
48.Fn llabs "long long j"
49.Ft quad_t
50.Fn qabs "quad_t j"
51.Sh DESCRIPTION
52The
53.Fn labs
54function returns the absolute value of the long integer
55.Fa i .
56The
57.Fn llabs
58function returns the absolute value of the long long integer
59.Fa j .
60.Pp
61The
62.Fn qabs
63function is a deprecated equivalent of
64.Fn llabs .
65.Sh SEE ALSO
66.Xr abs 3 ,
67.Xr cabs 3 ,
68.Xr floor 3 ,
69.Xr imaxabs 3
70.Sh STANDARDS
71The
72.Fn labs
73and
74.Fn llabs
75functions conform to
76.St -isoC-99 .
77.Sh CAVEATS
78The results of applying
79.Fn labs
80to
81.Dv LONG_MIN
82and
83.Fn llabs
84to
85.Dv LLONG_MIN
86are undefined, and
87.Fn qabs
88is not portable in the first place.