#include <stdio.h>
#define getoffset(type,member) &(((type *)0) ->member)
typedef struct {
char a;
int b;
short c;
} MyStruct;
void print_offsets() {
MyStruct s;
printf("Offset of a: %d\n",getoffset(MyStruct,a));
printf("Offset of b: %d\n",getoffset(MyStruct,b));
printf("Offset of c: %d\n",getoffset(MyStruct,c));
printf("Size: %d\n",sizeof(s));
}
int main() {
print_offsets();
return 0;
}