Struct Padding

Code

#include <stdio.h>
#include <stdint.h>
typedef struct {
    char a;
    int b;
    short c;
} MyStruct;

void print_offsets() {
    //Declare a variable of this struct
    MyStruct s;

    //Declare pointers to each member of the struct and as a whole to the struct
    uint8_t *ps, *pa, *pb, *pc;

    ps = (uint8_t *) &s;
    pa = (uint8_t *) &s.a;
    pb = (uint8_t *) &s.b;
    pc = (uint8_t *) &s.c;

    printf("Offset of a: %u\n", (pa - ps));
    printf("Offset of b: %u\n",  (pb - ps));
    printf("Offset of c: %u\n", (pc - ps));
    printf("Size: %u", sizeof(s));
}

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