#include <complex.h>
#include <stdio.h>

#ifndef J
#define J _Imaginary_I
#endif

int main();

int main() {
	// Create the complex number 4 -3j
	double complex z = 4.0 - 3.0*J;
	// Cast the address of 'z' as a pointer to a double and
	// interpret it as a 'double array[2];'
	double *array = (double *)(&z);

	printf( "z = %f%+fj\n", creal(z), cimag(z) );
	printf( "z = %f%+fj\n", array[0], array[1] );

	return 0;
}