#include <stdio.h>
struct SubStruct
{
int a;
int b;
};
struct MyStruct
{
int first;
struct SubStruct second;
};
int
main()
{
struct MyStruct my_struct = {10, {20, 30}};
struct MyStruct *my_pointer = &my_struct;
struct MyStruct *null_pointer = nullptr;
printf ("Stop here to evaluate expressions: %d %d %p\n", my_pointer->first, my_pointer->second.a, my_pointer);
return 0;
}