—
NAME
creal, crealf, creall - get real part of a complex number
LIBRARY
Math library (libm, -lm)
SYNOPSIS
bash
#include <complex.h>bash
double creal(double complex \nz\n);\n
\nfloat crealf(float complex \nz\n);\n
\nlong double creall(long double complex \nz\n);DESCRIPTION
These functions return the real part of the complex number z.
One has:
bash
\n
z = creal(z) + I * cimag(z)ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| creal (), crealf (), creall () | Thread safety | MT-Safe |
VERSIONS
GCC supports also __real__. That is a GNU extension.
STANDARDS
C11, POSIX.1-2008.
HISTORY
glibc 2.1. C99, POSIX.1-2001.
SEE ALSO
cabs(3), cimag(3), complex(7)