cppreference.com > Miscellaneous C++ > auto_ptr
auto_ptr
Syntax:
  #include<memory>
  auto_ptr<class TYPE> name

The auto_ptr class allows the programmer to create pointers that point to other objects. When auto_ptr pointers are destroyed, the objects to which they point are also destroyed. The auto_ptr class supports normal pointer operations like =, *, and ->, as well as two functions TYPE* get() and TYPE* release(). The get() function returns a pointer to the object that the auto_ptr points to. The release() function acts similarily to the get() function, but also relieves the auto_ptr of its memory destruction duties. When an auto_ptr that has been released goes out of scope, it will not call the destructor of the object that it points to.

 #include <memory>
 using namespace std;
 class MyClass {
 public:
   MyClass() { // nothing }
   ~MyClass() { // nothing }
   void myFunc() { // nothing }
 };
 int main() {
   auto_ptr<MyClass> ptr1(new MyClass), ptr2;
   ptr2 = ptr1;
   ptr2->myFunc();
   MyClass* ptr = ptr2.get();
   ptr->myFunc();
   return 0;
 }