Struct Padding

Code

#include <stdio.h>

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

void print_offsets() {
    MyStruct s;

    char * baseAddr = (char *)&s;
    char * charAddr = (char *)&(s.a);
    char * intAddr = (char *)&(s.b);
    char * shortAddr = (char *)&(s.c);

    printf("Offset of a: %d\n", charAddr-baseAddr);
    printf("Offset of b: %d\n", intAddr-baseAddr);
    printf("Offset of c: %d\n", shortAddr-baseAddr);
    printf("Size: %d\n", sizeof(s));
}

int main() {
    print_offsets();
    return 0;
}

Solving Approach