example1_basic_usage.cpp

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#include <iostream>
#include <memory>

class MyClass {
public:
    MyClass() { std::cout << "MyClass Constructor" << std::endl; }
    ~MyClass() { std::cout << "MyClass Destructor" << std::endl; }
    void sayHello() const { std::cout << "Hello from MyClass" << std::endl; }
};

int main() {
    std::shared_ptr<MyClass> ptr1 = std::make_shared<MyClass>();  // Create a shared_ptr
    {
        std::shared_ptr<MyClass> ptr2 = ptr1;  // Share ownership with ptr2
        ptr2->sayHello();  // Use the object
        std::cout << "Reference count: " << ptr1.use_count() << std::endl;  // Outputs: 2
    }
    // ptr2 goes out of scope, reference count decreases
    std::cout << "Reference count: " << ptr1.use_count() << std::endl;  // Outputs: 1

    return 0;
}