Master C++ Templates: Think Like the Compiler.

Modern C++ best practices, diagnostics, and deep dives that build debugging confidence.

What you’ll learn
Write and use function and class templates to eliminate code duplication and improve reusability.
Understand template specialization, overload resolution, and argument deduction to handle complex type scenarios.
Debug and interpret compiler diagnostics and cryptic error messages with confidence.
Explore advanced features like variadic templates, fold expressions, and metaprogramming.
Apply SFINAE and template constraints to control overload resolution and enforce correctness.
Understand two‑phase lookup and how it affects name resolution in template code.
Gain modern C++ best practices on the fly (e.g., auto, decltype, constexpr, CTAD, fold expressions) during real code walkthroughs.
Explore template metaprogramming insights and learn how templates can act as a compile‑time engine.
Build STL‑like containers (e.g., myVector) and compare them with standard containers to understand design trade‑offs.
Develop the ability to think like the compiler — inspecting instantiations, object files, and diagnostics to truly master template behavior.

Requirements
Basic knowledge of C++ syntax (variables, functions, classes).
Ability to compile and run C++ programs in any IDE or command line or online compiler. (Guidance will be provided where needed)
Optional: A modern C++ compiler (supporting at least C++17; C++20/23 recommended). If you don’t have one, you’ll learn how to use online compilers instead.
Optional: CMake with VS Code (used in some demos). You can still follow along with your preferred IDE or an online compiler.
Curiosity and willingness to experiment with the code examples.

Description
Master C++ Templates: Think Like the CompilerTemplates are one of the most powerful — and most misunderstood — features of modern C++. They enable generic programming, code reusability, and compile‑time efficiency, but for many developers, they remain a source of confusion and frustration.This course is designed to demystify C++ templates step by step, starting from the basics and building all the way up to advanced concepts like specialization, variadic templates, and metaprogramming. Along the way, you’ll learn not just how templates work, but also why they behave the way they do — with live demos, debugging sessions, and practical examples.What makes this course different?This course goes beyond syntax. In this course, you’ll not only master C++ templates but also pick up Modern C++ best practices on the fly as we work through real examples. Whenever a situation calls for it, I’ll pause to highlight modern idioms, safer coding patterns, and efficiency tips — so you’re learning professional practices naturally, in context.We don’t stop at writing code. We dig deeper into compiler diagnostics, analyze cryptic error messages, and even inspect object files to understand what the compiler actually generates. This behind‑the‑scenes exploration will give you the confidence to debug, reason about, and optimize template code like a pro.What You’ll LearnWhy templates matter in C++Write and apply function templates — and understand how they replace repetitive overloadsCreate and use class templatesHandle multiple types with templatesApply specialization and partial specializationMaster SFINAE and template constraintsDebug template errors with confidenceDiagnose compiler output and object files(.obj file)Diagnose compiler output onlineExplore Variadic templates and Fold ExpressionsApply template metaprogramming and compile‑time logicUnderstand how std::begin() and std::end() work internallyUse auto vs decltype effectively in templatesImplement STL‑like classes (std::array, std::vector)Port Makefile projects to Modern CMakeC++ tips, tricks, and best practicesHands‑On DemosEvery concept is reinforced with live coding demonstrations. You’ll see how to:Start with a problem statement and incrementally refactor it using templatesConvert overloaded functions into clean, reusable function templatesDebug tricky cases like std::string and const char* specializationExplore what code the compiler actually generates behind the scenesApply SFINAE to control overload resolution and constraintsPort a legacy Makefile project into a modern CMake build systemAssignments and GitHub source code are included so you can practice, experiment, and build confidence.Who This Course Is ForThis course is designed for:C++ developers who want to go beyond syntax and truly master templates, from basics to advanced metaprogramming.Intermediate programmers who already know C++ fundamentals and want to strengthen their debugging and problem‑solving skills.Engineering students preparing for interviews, competitive programming, or advanced coursework where templates and STL are essential.Professionals working with legacy code who want to modernize projects using modern C++ standards.Self‑taught learners who struggle with cryptic compiler errors and want to build confidence in diagnosing and fixing them.Anyone curious about STL internals and eager to understand how features like std::begin(), std::end(), auto, and decltype work under the hood.By the end of this course, you won’t just “know” templates — you’ll be able to apply them with confidence, debug them effectively, and leverage them to write modern, reusable, and high‑performance C++ code.

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