Complete Beginner Tutorial

This directory contains a complete beginner tutorial for the OnceCallback component, consisting of 13 articles that cover the full learning path from reviewing basic C++ features to component implementation and testing.

Prerequisites

First, master the core C++ features required for OnceCallback:

OnceCallback Prerequisite Cheat Sheet: Review of C++11/14/17 Core Features→OnceCallback Prerequisites (1): Function Types and Template Partial Specialization→OnceCallback Prerequisites (2): std::invoke and Uniform Callable Protocols→OnceCallback Prerequisites (3): Advanced Lambda Features→OnceCallback Prerequisites (4): Concepts and requires Constraints→OnceCallback Prerequisites (5): std::move_only_function (C++23)→OnceCallback Prerequisites (6): Deducing this (C++23)→

Hands-on Practice

After completing the prerequisites, we will start implementing OnceCallback:

OnceCallback in Action (1): Motivation and API Design→OnceCallback in Action (2): Core Skeleton Setup→OnceCallback in Action (3): bind_once Implementation→OnceCallback in Action (4): Cancellation Token Design→OnceCallback in Action (5): then Chaining Composition→OnceCallback in Action (6): Testing and Performance Comparison→

Companion Code

The standalone C++ example code covered in the prerequisite chapters has been extracted into minimal, compilable projects located at:

code/volumn_codes/vol9/full_tutorial_codes/chrome_design/

Example	Topic	Source Article	Min C++ Standard
01_move_semantics.cpp	Move semantics, perfect forwarding, variadic templates	pre-00	C++17
02_smart_pointers.cpp	unique_ptr, shared_ptr	pre-00	C++17
03_atomic_memory_order.cpp	atomic, memory_order, enum class	pre-00	C++17
04_lambda_basics.cpp	Capture modes, generic lambda, [[nodiscard]]	pre-00	C++17
05_lambda_advanced.cpp	mutable lambda, init capture, C++17/C++20 bind	pre-03	C++20
06_type_traits.cpp	type traits, if constexpr, decltype(auto), ref-qualifier	pre-00	C++17
07_function_type_specialization.cpp	Function types, FuncTraits, primary template + partial specialization	pre-01	C++17
08_invoke.cpp	std::invoke, std::invoke_result_t	pre-02	C++17
09_concepts_requires.cpp	concept, requires, not_the_same_t, template constructor hijacking	pre-04	C++20
10_move_only_function.cpp	std::move_only_function ctor/move/empty check/SBO	pre-05	C++23
11_deducing_this.cpp	deducing this deduction rules, lvalue interception	pre-06	C++23

Build instructions:

cd code/volumn_codes/vol9/full_tutorial_codes/chrome_design
mkdir build && cd build
cmake ..
make -j$(nproc)