CARG(3) Library Functions Manual CARG(3)

carg cargf cargl — complex argument functions

#include <complex.h>

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

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 (“POSIX.1”) defers to the ISO C standard.

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

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

No errors are defined.

None.

None.

None.

None.

cimag(3) , conj(3) , cproj(3) , the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <complex.h>

First released in Issue 6. Derived from the ISO/IEC 9899:1999 (“ISO C99”) standard.

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December 6, 2001 posix.fail