Thread: Calling init function through main in C

Code:

#include<stdio.h>

 const a * z =Null 
   struct 
 {
 }z;

 int init_test (const a *b)
 { 
 z=b;
 }

 int main(void){
 {
 init_test(1)
 return0;}

1. I want to call init function through main i dont understand why any one can explain how to od this?