creal, crealf, creall - complex real functions
c99 [ flag... ] file... –lm [ library... ] #include <complex.h> double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
These functions compute the real part of z.
These functions return the real part value.
No errors are defined.
For a variable z of complex type:
z == creal(z) + cimag(z)*I
See attributes(7) for descriptions of the following attributes:
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cproj(3M), complex.h(3HEAD), carg(3M), cimag(3M), conj(3M), attributes(7), standards(7)