Struct Padding

Code

#include <stdio.h>

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

void print_offsets() {
    
    MyStruct obj;
    // Using pointer arithmetic
    printf("Offset of a: %ld\n", (char*)&obj.a - (char*)&obj);
    printf("Offset of b: %ld\n", (char*)&obj.b - (char*)&obj);
    printf("Offset of c: %ld\n", (char*)&obj.c - (char*)&obj);

    printf("Size: %lu\n", sizeof(MyStruct));
}

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

Solving Approach