Struct Padding

Code

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

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

void print_offsets() {
    MyStruct foo;
    (void) printf("Offset of a: %d\n", (uintptr_t) &foo.a - (uintptr_t) &foo); 
    (void) printf("Offset of b: %d\n", (uintptr_t) &foo.b - (uintptr_t) &foo); 
    (void) printf("Offset of c: %d\n", (uintptr_t) &foo.c - (uintptr_t) &foo); 
    (void) printf("Size: %d\n", sizeof foo); 
}

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

Solving Approach