Struct Padding

Code

#include <stdio.h>

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

void print_offsets() {
    MyStruct s1 = {'a', 100, 'c'};
    void *a = &s1.a;
    void *b = &s1.b;
    void *c = &s1.c;
    void *s = &s1;

    printf("Offset of a: %lu\n", (char *)a - (char *)s);
    printf("Offset of b: %lu\n", (char *)b - (char *)s);
    printf("Offset of c: %lu\n", (char *)c- (char *)s);
    printf("Size: %lu", sizeof(MyStruct));
}

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

Solving Approach