C++ Advanced Features | C++ Advanced Features | Selection With Sathi

📚 C++ Advanced Features | C++ Advanced Features
Move semantics, lambdas, exceptions & Rule of 5 for developers and students

📌 Key Formulas:
1. Move Semantics (std::move): T(T&& other); // move constructor steals resources
2. Lambda Expressions: [capture](params) -› return_type { body }
3. Exception Handling: try { throw exception; } catch (const type& e) { handle; }
4. Rule of 5: Destructor + Copy Ctor + Copy = + Move Ctor + Move =

⏱️ Timestamps:
0:00 Introduction
0:20 Move Semantics (std::move)
1:09 Lambda Expressions
2:02 Exception Handling
2:47 Rule of 5
3:37 Move Constructor
4:19 Lambda with Capture
4:55 Custom Exception
5:30 Copy vs Move Performance
6:10 Quick Tips & Tricks | टिप्स
6:44 Summary | सारांश

💡 Quick Tips:
• std::move doesn't actually move anything — it just casts to rvalue reference, enabling the move constructor
• Always capture by reference [&] in lambdas when the lambda doesn't outlive the variables it captures
• Catch exceptions by const reference to avoid slicing and unnecessary copying
• If you define any of the 5 special member functions, define all 5 — or explicitly =default / =delete the ones you don't need

📚 Useful for: C++, GATE CSE, Interviews and all govt exams

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