1LABS(3P)                   POSIX Programmer's Manual                  LABS(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

13       labs, llabs — return a long integer absolute value
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SYNOPSIS

16       #include <stdlib.h>
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18       long labs(long i);
19       long long llabs(long long i);
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DESCRIPTION

22       The functionality described on this reference page is aligned with  the
23       ISO C  standard.  Any  conflict between the requirements described here
24       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2008
25       defers to the ISO C standard.
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27       The  labs() function shall compute the absolute value of the long inte‐
28       ger operand i.  The llabs() function shall compute the  absolute  value
29       of  the  long  long  integer operand i.  If the result cannot be repre‐
30       sented, the behavior is undefined.
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RETURN VALUE

33       The labs() function shall return the absolute value of the long integer
34       operand.
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36       The  llabs()  function shall return the absolute value of the long long
37       integer operand.
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ERRORS

40       No errors are defined.
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42       The following sections are informative.
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EXAMPLES

45       None.
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APPLICATION USAGE

48       None.
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RATIONALE

51       None.
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FUTURE DIRECTIONS

54       None.
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SEE ALSO

57       abs()
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59       The Base Definitions volume of POSIX.1‐2008, <stdlib.h>
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62       Portions of this text are reprinted and reproduced in  electronic  form
63       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
64       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
65       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
66       cal and Electronics Engineers,  Inc  and  The  Open  Group.   (This  is
67       POSIX.1-2008  with  the  2013  Technical Corrigendum 1 applied.) In the
68       event of any discrepancy between this version and the original IEEE and
69       The  Open Group Standard, the original IEEE and The Open Group Standard
70       is the referee document. The original Standard can be  obtained  online
71       at http://www.unix.org/online.html .
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73       Any  typographical  or  formatting  errors that appear in this page are
74       most likely to have been introduced during the conversion of the source
75       files  to  man page format. To report such errors, see https://www.ker‐
76       nel.org/doc/man-pages/reporting_bugs.html .
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80IEEE/The Open Group                  2013                             LABS(3P)
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