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double_pointers.cpp
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double_pointers.cpp
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#include <iostream>
using namespace std;
struct Person
{
string name;
Person *friend_;
};
void foo()
{
Person p1;
Person p2;
p1.name = "Person 1";
p1.friend_ = NULL;
p2.name = "Person 2";
p2.friend_ = NULL;
p1.friend_ = &p2;
p2.friend_ = &p1;
cout << "Friend of p1: " << p1.friend_->name << endl;
cout << "Friend of p2: " << p2.friend_->name << endl;
cout << "Friend of p2: " << p1.friend_->friend_->name << endl;
// cout << "p" << to_string(p) << endl;
// cout << "p.pointer: " << p.pointer << endl;
}
int main()
{
foo();
return 1;
int a = 86;
int *pointer = &a;
int **doublePointer = &pointer;
cout << "a=" << a << endl;
cout << "pointer=" << pointer << endl;
cout << "*pointer=" << *pointer << endl;
cout << "double_pointer=" << doublePointer << endl;
cout << "*double_pointer=" << *doublePointer << endl;
cout << "**double_pointer=" << **doublePointer << endl;
int ***triplePointer = &doublePointer;
cout << "triplePointer=" << triplePointer << endl;
cout << "*triplePointer=" << *triplePointer << endl;
cout << "**triplePointer=" << **triplePointer << endl;
cout << "***triplePointer=" << ***triplePointer << endl;
int ****quadruplePointer = &triplePointer;
cout << "quadruplePointer=" << quadruplePointer << endl;
cout << "*quadruplePointer=" << *quadruplePointer << endl;
cout << "**quadruplePointer=" << **quadruplePointer << endl;
cout << "***quadruplePointer=" << ***quadruplePointer << endl;
cout << "****quadruplePointer=" << ****quadruplePointer << endl;
return 1;
}