`cimag.3p` ( 3 )

сложные мнимые функции (complex imaginary functions)

Пролог (Prolog)

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

Имя (Name)

cimag, cimagf, cimagl — complex imaginary functions

Синопсис (Synopsis)

#include <complex.h>

double cimag(double complex z); float cimagf(float complex z); long double cimagl(long double complex z);

Описание (Description)

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.

These functions shall compute the imaginary part of z.

Возвращаемое значение (Return value)

These functions shall return the imaginary part value (as a real).

Ошибки (Error)

No errors are defined.

The following sections are informative.

Примеры (Examples)

None.

Использование в приложениях (Application usage)

For a variable z of complex type:

z == creal(z) + cimag(z)*I

Обоснование (Rationale)

None.

Будущие направления (Future directions)