Как создать 2 указателя, указывающих друг на друга в C++?

 struct node { struct node *next; } a, b; 
a.next = &b;
b.next = &a; 

 #include 
using namespace std;
 
int main()
{ 
	void* fst = nullptr; 
	void* scd = (void*)&fst;
 	fst = (void*)&scd;
  
	cout << hex << "First ptr addr = " << & fst << ", value = " << fst << endl; 
	cout << hex << "Second ptr addr = " << &scd << ", value = " << scd << endl; 
	return 0; 
}
 
 

 First ptr addr = 000000F56C0FF890, value = 000000F56C0FF898
Second ptr addr = 000000F56C0FF898, value = 000000F56C0FF890