foocomplex.c

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

int main(void)
{
  float complex c = 3.0 + 4.0 * I;
  long d;

  d = c;
  printf ("%f %+fi\n", creal(c), cimag(c));
  printf("%ld\n", d);

  c = 3.0 - 4.0 * I;
  d = c;
  printf ("%f %+fi\n", creal(c), cimag(c));
  printf("%ld\n", d);

  return (0);
}