Smart Pointers

1What Are Smart Pointers?✨

Smart pointers are a modern way in C++ to manage memory automatically. They help prevent memory leaks and dangling pointers by ensuring that resources are released when no longer needed.

2Why Learn Smart Pointers?🎯

• ✓ Automatically manage memory
• ✓ Improve code safety and readability
• ✓ Reduce chances of memory-related bugs
• ✓ Essential for modern C++ programming

3Types of Smart Pointers💡

• C++ offers three main types of smart pointers:
• std::unique_ptr: Owns a resource exclusively.
• std::shared_ptr: Shared ownership of a resource.
• std::weak_ptr: Non-owning reference to a resource managed by std::shared_ptr.

4Using Unique Pointer🚀

Here's how to create and use a unique pointer:

#include <iostream>
#include <memory>

int main() {
    std::unique_ptr<int> ptr = std::make_unique<int>(10);
    std::cout << *ptr << std::endl; // Outputs: 10
    return 0;
}

5Using Shared Pointer🔍

Shared pointers allow multiple pointers to share ownership of an object:

#include <iostream>
#include <memory>

int main() {
    std::shared_ptr<int> ptr1 = std::make_shared<int>(20);
    std::shared_ptr<int> ptr2 = ptr1; // Both share ownership
    std::cout << *ptr2 << std::endl; // Outputs: 20
    return 0;
}

6When to Use Smart Pointers⭐

• Use smart pointers when:
• ✓ You need automatic memory management
• ✓ You want to share resources safely
• ✓ You are developing large applications to minimize memory errors

7What You'll Build This Grade🧩

• ✓ A memory-efficient application using smart pointers
• ✓ A resource manager to handle dynamic objects
• ✓ An interactive project that showcases memory management techniques
• ✓ A capstone project integrating smart pointers with your existing knowledge