Struct Padding

Code

#include <stdio.h>
#include <stdlib.h>

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

void print_offsets() {
    MyStruct* s = (MyStruct*)malloc(sizeof(MyStruct));
    printf("Offset of a: %ld\n", (&(s->a)) - (char*)s);
    printf("Offset of b: %ld\n", (char*)(&(s->b)) - (char*)s);
    printf("Offset of c: %ld\n", (char*)(&(s->c)) - (char*)s);
    printf("Size: %d", sizeof(MyStruct));
}

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

Solving Approach