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.
z = creal(z) + I * cimag(z)
These functions first appeared in glibc in version 2.1.
The gcc supports also __real__. That is a GNU extension.
cabs(3), cimag(3), complex(7)
This page is part of release 3.54 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Man Pages Copyright Respective Owners. Site Copyright (C) 1994 - 2018
All Rights Reserved.