Your roadmap to real skills.

C++ vs C and the Zero-Overhead Principle

Explain what C++ adds over C, the zero-overhead principle, and when to choose C++ over C or higher-level languages.

Classes and OOP in C++

Write C++ classes with the Rule of Three/Five/Zero and modern access control.

References and const Correctness

Use references vs pointers correctly, apply const everywhere, pass parameters efficiently.

The Standard Template Library (STL)

Use vector, unordered_map, set, string, algorithms, iterators fluently.

Smart Pointers and RAII

Apply RAII + smart pointers instead of raw new/delete.

Templates and C++20 Concepts

Write function + class templates and constrain them with C++20 concepts.

Move Semantics

Use rvalue references, move constructors, std::move; understand copy elision (RVO/NRVO).

Modern C++ (C++17/20)

Use modern C++ features: structured bindings, optional, variant, span, ranges, concepts.

Concurrency in C++

Write safe concurrent C++ with thread, mutex, atomic, async, future.

Build Systems: CMake

Author a CMakeLists.txt; pull dependencies with FetchContent or vcpkg.

Passion Project: C++ Data Structure Library

Build HashMap, LinkedList, BST as templated C++20 containers with full STL-compatible iterators + Catch2 tests + CI.

C++ Job Readiness

Translate C++ skills into resume bullets + interview answers for game dev / HFT / robotics / browser engine roles.