NAME

cimag, cimagf, cimagl - get imaginary part of a complex number

LIBRARY

Math library (libm, -lm)

#include <complex.h>

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

These functions return the imaginary part of the complex number z.

One has:

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

These functions were added in glibc 2.1.

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
cimag (), cimagf (), cimagl ()	Thread safety	MT-Safe

C99, POSIX.1-2001, POSIX.1-2008.

gcc also supports __imag__. That is a GNU extension.