problem with complex numbers

hi,
i wrotte a code but doesn't work..since i'm beginner i can't find where is my error..when i compile my code i get no error..but when i run it i get: Segmentation fault

thx in advance for ur help

code:

Code:

#include <stdio.h>
#include <stdlib.h>


struct Complex_s{
 double x;
 double y;
};

void readComplex(struct Complex_s *z); // 1 
void printComplex(struct Complex_s *z); // 2

int main(int argc, char *argv[])
{
struct Complex_s z1;

printf("Number: \n");

readComplex(&z1);
printComplex(&z1);

return 0;
}

void readComplex(struct Complex_s *z) 
{
printf("R-Part: \n");
scanf("%lf", z->x);
printf("I-part: \n");
scanf("%lf", z->y);
}

void printComplex(struct Complex_s *z)
{
printf("%lf, %lfi\n", z->x, z->y);
}

scanf("%lf", &z->x);

Originally Posted by vart

scanf("%lf", &z->x);

thx vart..