creal(3)

NAME

creal, crealf, creall - get real part of a complex number

#include <complex.h>
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
Link with -lm.

The creal() function returns the real part of the complex number z.

These functions first appeared in glibc in version 2.1.

C99.

The gcc supports also __real__. That is a GNU extension.

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