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1. Intuition Behind Copy-and-Swap Idiom

Think of it like this:

“Make a copy of the other object. Then, swap its guts with mine. When the temporary copy dies, it takes my old resources with it.”

This way, you:

• Reuse constructor logic
• Avoid resource leaks
• Are exception-safe: if something fails during copy, original object remains unchanged

It’s like “I’ll take a backup of yours, exchange it with mine, and let my old self be deleted.”

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2. Illustration (Analogy)

Imagine two suitcases:

You’re this, and someone gives you a new suitcase other.

Instead of transferring each item one by one (risky and messy), you:

1. Make a copy of their suitcase.
2. Swap your suitcase with the copy.
3. Their copy (which now has your old stuff) is automatically destroyed.