1CABS(3P)                   POSIX Programmer's Manual                  CABS(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

12       cabs, cabsf, cabsl — return a complex absolute value
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SYNOPSIS

15       #include <complex.h>
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17       double cabs(double complex z);
18       float cabsf(float complex z);
19       long double cabsl(long double complex z);
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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.1‐2017
25       defers to the ISO C standard.
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27       These  functions  shall compute the complex absolute value (also called
28       norm, modulus, or magnitude) of z.
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RETURN VALUE

31       These functions shall return the complex absolute value.
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ERRORS

34       No errors are defined.
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36       The following sections are informative.
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EXAMPLES

39       None.
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APPLICATION USAGE

42       None.
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RATIONALE

45       None.
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FUTURE DIRECTIONS

48       None.
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SEE ALSO

51       The Base Definitions volume of POSIX.1‐2017, <complex.h>
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54       Portions of this text are reprinted and reproduced in  electronic  form
55       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
56       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
57       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
58       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
59       event of any discrepancy between this version and the original IEEE and
60       The Open Group Standard, the original IEEE and The Open Group  Standard
61       is  the  referee document. The original Standard can be obtained online
62       at http://www.opengroup.org/unix/online.html .
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64       Any typographical or formatting errors that appear  in  this  page  are
65       most likely to have been introduced during the conversion of the source
66       files to man page format. To report such errors,  see  https://www.ker‐
67       nel.org/doc/man-pages/reporting_bugs.html .
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71IEEE/The Open Group                  2017                             CABS(3P)
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