The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
Copyright © 2001-2018 IEEE and The Open Group

NAME

carg, cargf, cargl - complex argument functions

SYNOPSIS

#include <complex.h>

double carg(double complex
z);
float cargf(float complex
z);
long double cargl(long double complex
z);

DESCRIPTION

[CX] [Option Start] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO C standard. [Option End]

These functions shall compute the argument (also called phase angle) of z, with a branch cut along the negative real axis.

RETURN VALUE

These functions shall return the value of the argument in the interval [-, +].

ERRORS

No errors are defined.


The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

cimag, conj, cproj

XBD <complex.h>

CHANGE HISTORY

First released in Issue 6. Derived from the ISO/IEC 9899:1999 standard.

End of informative text.

 

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