C++ Track Summary

story, bites and repositories of C++ code

"C++ is a general-purpose programming language with a bias towards systems programming that is a better C; supports data abstraction, object-oriented programming, and generic programming."
- Bjarne Stroustrup, creator of C++

Figure 1. C++ demo code

1. What is C++?

C++ is a general-purpose, multi-paradigm language that compiles to native code and delivers performance comparable only to C and hand-tuned assembly - with no garbage collector. Resources are managed through RAII (Resource Acquisition Is Initialization): constructors acquire resources and destructors release them deterministically when objects leave scope.

Three defining characteristics:

Multi-paradigm - supports procedural, object-oriented, and generic programming in the same program; choose the style that fits each problem.
Zero-overhead abstractions - templates, virtual dispatch, and STL algorithms compile to code no slower than equivalent hand-written C; you pay only for what you use.
Full systems access - direct memory manipulation, inline assembly, platform APIs, and interoperability with C; nothing is hidden from the programmer.

C++ is used everywhere performance matters: operating systems, game engines, databases, browsers, compilers, embedded systems, and high-frequency trading. It was created by Bjarne Stroustrup and first standardised in 1998 (C++98). Major revisions shipped in 2011, 2014, 2017, 2020, and 2023, each adding significant modern features while preserving backward compatibility.

2. Track Contents

The C++ track offers three complementary learning pathways plus supporting reference material.

Pathway	Description	Entry Point
C++ Story	A comprehensive narrative covering C++ from first principles through advanced topics. Chapters: Prologue, Models, Data, Operations, Classes, Class Relationships, Templates, Template Metaprogramming, Libraries, and Streams. Best for readers who want a complete, linear progression.	Prologue
C++ Bites	Focused pages each covering a single language feature or concept. Pages form an ordered sequence but also work as stand-alone references. The Pages menu lets you jump directly to any topic.	Introduction
Repositories	Documented C++ code repositories illustrating real programs - thread pools, blocking queues, socket communication, text search, logging, XML processing, and more. Each page discusses the design and links to the GitHub source.	Repositories
Other Resources	Glossary, References page, and downloadable pdf files.	CppModels.pdf Templates.pdf STL.pdf

3. Key Language Concepts

The track covers the areas below, roughly from foundational to advanced.

Types and Value Semantics

C++ is built around value types: objects hold their data directly and assignment produces independent copies. Understanding the object model is the first step to writing correct C++.

Primitive types - integers, floats, characters, booleans; stored as contiguous bytes
Value types - structs and classes whose assignment copies all members independently
RAII - constructors acquire resources; destructors release them; no explicit cleanup needed
Move semantics (C++11) - transfer ownership of resources from a temporary to avoid copies
Special methods: default, copy, and move constructors; copy and move assignment; destructor - the "Rule of Five"

Pages: Data, Bites: Data, Models.

Classes and Object-Oriented Programming

C++ classes are the primary mechanism for encapsulation, abstraction, and code reuse.

Encapsulation - public, protected, and private access control
Inheritance - single and multiple; supports "mixin" patterns through multiple base classes
Polymorphism - virtual functions dispatched at runtime through a vtable; override and final keywords enforce intent
Abstract classes - pure virtual functions define interfaces
Operator overloading - arithmetic, comparison, subscript, and stream operators

Pages: Classes, Class Relationships, Bites: Objects.

Templates and Generic Programming

Templates let you write type-parameterised code that is instantiated at compile time, with no runtime overhead. They are the foundation of the entire STL.

Function templates - single definition works for any compatible type
Class templates - generic containers and algorithms; e.g., vector<T>
Template specialisation - custom behaviour for specific types
Concepts (C++20) - named constraints on template parameters; replaces SFINAE patterns
Template Metaprogramming (TMP) - compile-time computation; type traits, constexpr, and if constexpr

Pages: Templates, Template Metaprogramming, Bites: Generics.

Standard Template Library (STL)

The STL provides generic containers, iterator abstractions, and algorithms that compose uniformly across all containers.

Sequence containers: vector, deque, list, array, forward_list
Associative containers: map, set, multimap, unordered_map, unordered_set
Algorithms: sort, find, transform, accumulate, for_each, and 100+ more - all work on iterator ranges
Iterators - uniform traversal interface; input, output, forward, bidirectional, random-access
Ranges (C++20) - composable, lazy view pipeline replacing raw iterator pairs

Pages: Library: STL, Bites: Iterators, STL Containers.

Memory Management and Smart Pointers

C++ gives the programmer full control over memory. Modern C++ channels that control through smart pointers and RAII rather than raw new/delete.

Stack allocation - automatic, zero overhead; prefer it over the heap when possible
unique_ptr<T> - exclusive ownership; zero overhead over a raw pointer; destructor calls delete automatically
shared_ptr<T> - reference-counted shared ownership; weak_ptr<T> breaks ownership cycles
Move semantics - std::move transfers ownership cheaply; avoids deep copies of large objects
Custom allocators - fine-grained control for performance-critical containers

Pages: Models, Libraries.

Concurrency

C++11 added a portable threading library to the standard. C++20 extended it with coroutines and enhanced synchronisation primitives.

std::thread - create and join OS threads; lambdas capture context by value or reference
std::mutex, std::lock_guard, std::unique_lock - mutual exclusion; RAII lock wrappers prevent deadlock from exceptions
std::condition_variable - wait/notify coordination between threads
std::async / std::future - launch work asynchronously and retrieve results later
Atomics (std::atomic<T>) - lock-free operations on scalar types

Pages: Operations, Processes & Threads, Thread Pool.

4. Getting Started

Recommended first steps for someone new to C++:

Install a compiler tool chain. On Windows, install Visual Studio Community (free) with the "Desktop development with C++" workload - provides MSVC, the debugger, and CMake integration. On Linux/macOS, gcc or clang are available through the system package manager.
Install VS Code with the C/C++ and CMake Tools extensions for inline diagnostics, code completion, and integrated debugging.
Read C++ Bites: Introduction for an overview of what distinguishes C++ from managed languages and what the track covers.
Work through Bites: Hello C++ to confirm your environment, then try the Compiler Explorer for quick online experiments without a local install.
Follow the C++ Bites sequence page by page, or read the C++ Story in parallel for deeper narrative context.

5. References

Resource	Description
cppreference.com	The authoritative reference for every keyword, type, and library function in standard C++.
isocpp.org	Official C++ foundation site — news, guidelines, FAQ, and links to the ISO standard.
C++ Core Guidelines	Rules for writing modern, safe C++, maintained by Bjarne Stroustrup and Herb Sutter.
Compiler Explorer	Browser-based tool for writing C++ and seeing generated assembly across multiple compilers.
learncpp.com	Free, comprehensive tutorial series covering C++ from beginner to advanced level.
Track References page	Curated list of additional blogs, videos, and books from this site.
CppModels.pdf	Slide deck covering C++ object and memory models.
Templates.pdf	Slide deck covering C++ template programming in depth.
STL.pdf	Slide deck covering the Standard Template Library containers and algorithms.
Stack Overflow C++	Large Q&A archive — an excellent first stop when debugging unfamiliar behaviour.