Core · Module 5 · Lesson 6 of 6

Project: A Safe Contact Class With No Leaks

Assemble constructors, deep-copy control, smart pointers, friends, and namespaces into one Contact that owns safely and prints cleanly.

ProAbout 12 minutes

By the end you can

Combine value members, smart pointers, and friends into one safe class
Verify copy independence and leak-free destruction for a contact record
Organize the result in a namespace with clear ownership roles

Builds on Friend Functions, Namespaces and Operator Overloading.

01 · A question first

Your contact now needs a name, an age, a note history, and an optional photo. Copies must stay independent, moves must transfer the photo, and a printer must show the card without exposing fields. How do you fit all four requirements in one class that never calls delete?

Make a guess before you read on.

02 · The idea

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What's inside

Why the pieces must meet
How safe ownership composes
Why destruction stays silent
What it costs and what to watch
Complete solution
Where it is used