Struct Padding

Code

#include <stdio.h>

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

void print_offsets() {
    MyStruct s;

    char *base = (char *)&s;  // base address as byte pointer

    printf("Offset of a: %ld\n", (char *)&s.a - base);
    printf("Offset of b: %ld\n", (char *)&s.b - base);
    printf("Offset of c: %ld\n", (char *)&s.c - base);
    printf("Size: %zu",sizeof(s));
}

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

Solving Approach