cimag, cimagf, cimagl - get imaginary part of a complex number
#include <complex.h>
double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);
Link with -lm.
These functions return the imaginary part of the complex number z.
One has:
z = creal(z) + I * cimag(z)These functions first appeared in glibc in version 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.
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