What's Next?

Congratulations

You have completed all 15 lessons. You now understand C++'s core features: output with cout, variables, strings, control flow, function overloading, default arguments, references, classes, constructors, encapsulation, inheritance, virtual functions, function templates, and vectors.

That is a strong foundation. C++ is a vast language, but these concepts unlock everything else.

What to Explore Next

  • Smart pointers -- unique_ptr, shared_ptr, and weak_ptr replace raw new/delete.
  • Lambda expressions -- anonymous functions for callbacks and algorithms: [](int x) { return x * 2; }
  • The STL algorithms -- std::sort, std::find, std::transform, std::accumulate work on any container.
  • Move semantics -- std::move, rvalue references, and move constructors for zero-copy transfers.
  • Exceptions -- try, catch, throw for error handling.
  • Class templates -- Generic classes like vector<T>, map<K,V>, and your own.
  • Operator overloading -- Make your classes work with +, ==, <<, and other operators.

Build Something

  • A stack or queue -- implement using vector or a linked list
  • A matrix class -- with addition, multiplication, and transpose
  • A simple expression parser -- tokenize and evaluate arithmetic strings
  • A polymorphic shape library -- area, perimeter, and drawing for many shape types

References

  • cppreference.com -- the definitive C++ reference.
  • A Tour of C++ by Bjarne Stroustrup -- concise, authoritative overview of modern C++.
  • Effective Modern C++ by Scott Meyers -- essential patterns for C++11/14.
  • LearnCpp.com -- free, thorough tutorial for beginners.
  • C++ Core Guidelines -- best practices maintained by Stroustrup and Sutter.
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