The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.

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 IEEE Std 1003.1-2001 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(), the Base Definitions volume of IEEE Std 1003.1-2001, <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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