78. Struct Padding

#include <stdio.h>
#include <stdint.h>

typedef struct{
    char a; 
    int b; 
    short c;
}MyStruct; 

void printf_offset(MyStruct tmp){
    char *add_base = (char*)&tmp;
    int offset_a = (char*)&tmp.a - add_base; 
    int offset_b = (char*)&tmp.b - add_base; 
    int offset_c = (char*)&tmp.c - add_base; 
    printf("Offset of a: %d\n",offset_a); 
    printf("Offset of b: %d\n",offset_b); 
    printf("Offset of c: %d\n",offset_c);
    printf("Size: %d\n",sizeof(MyStruct)); 
    }

int main(){
    MyStruct str1;
    printf_offset(str1); 
    return 0;

}