#include <iostream>
struct Address {
char name[16];
char street[32];
int entry;
};
int main()
{
const int offsetof_name = offsetof(Address, name);
const int offsetof_street = offsetof(Address, street);
const int offsetof_entry = offsetof(Address, entry);
std::cout << "offset of name: " << offsetof_name << " bytes from start of struct\n"; // 0
std::cout << "offset of street: " << offsetof_street << " bytes from start of struct\n"; // 0 + 16 = 16
std::cout << "offset of entry: " << offsetof_entry << " bytes from start of struct\n"; // 16 + 32 = 48
}
/*
run:
offset of name: 0 bytes from start of struct
offset of street: 16 bytes from start of struct
offset of entry: 48 bytes from start of struct
*/
