🚀

Copy-and-Swap Idiom (Crux)

Goal:

Safely define how objects are assigned (a = b) — especially when your class manages memory or resources.

🧠 How It Works

1. Make a copy of the object (b).
2. Swap its contents with a.
3. The temporary copy (b) now holds old a data and is destroyed automatically.

That’s it!

💡 Why Use It?

• Cleaner code ✅
• Avoids resource leaks ✅
• Handles self-assignment (a = a) safely ✅
• Uses destructor to auto-clean old stuff ✅

🧪 Mini Example