Interactive Demo
Variadic Template Expansion Visualizer
Variadic Template Expansion Visualizer is a free, interactive learning demo from the Introduction to CUDA and Modern C++ Programming course on Lykke. It helps you build intuition for Variadic Templates, Parameter Packs, Variable Templates, Template Template Parameters. Play with it directly in your browser — it features 6 buttons. This demo lives in the “Advanced Templates & Metaprogramming” section of the course.

How to use this demo
- Use the “+ int”, “+ float”, “+ string”, “Clear” buttons to trigger actions or reset the demo.
- Experiment freely — there's nothing to break, and every change is reversible.
What you'll explore
- Variadic Templates
- Parameter Packs
- Variable Templates
- Template Template Parameters
- Pack Expansion
Frequently asked questions
What does the Variadic Template Expansion Visualizer demo do?
tail) process(head); log(tail...); // Recursion Add arguments to the parameter pack to begin. Variadic Template Expansion Visualizer lets you explore this hands-on instead of only reading about it.
What Introduction to CUDA and Modern C++ Programming concept does Variadic Template Expansion Visualizer teach?
Covers variadic templates, variable templates, and template template parameters to enable highly generic and reusable GPU code. It focuses on Variadic Templates, Parameter Packs, Variable Templates, Template Template Parameters, Pack Expansion from the “Advanced Templates & Metaprogramming” section.
What can I control in Variadic Template Expansion Visualizer?
The “+ int”, “+ float”, “+ string”, “Clear” buttons run actions or reset the demo. Every change updates the visualization in real time, so you can see exactly how each variable affects the outcome.
How does Variadic Template Expansion Visualizer fit into the Introduction to CUDA and Modern C++ Programming course?
This course provides a comprehensive introduction to the CUDA parallel computing platform alongside the modern C++ features that underpin high-performance GPU programming. Students will explore the CUDA programming mode… This demo is the interactive piece for the “Advanced Templates & Metaprogramming” section. Open the full Introduction to CUDA and Modern C++ Programming course wiki at https://www.getlykke.com/explore/public/introduction-to-cuda-and-modern-c-c35571de-27f0-47c8-91b5-0788fbf6b12f for notes, flashcards, quizzes and the other demos.
What will I understand better after using Variadic Template Expansion Visualizer?
You'll build intuition for Variadic Templates, Parameter Packs, Variable Templates, Template Template Parameters, Pack Expansion — and, crucially, see how they behave when you change the inputs, which is hard to get from a textbook or lecture on Introduction to CUDA and Modern C++ Programming alone.
From the Introduction to CUDA and Modern C++ Programming course
This interactive demo is part of the Advanced Templates & Metaprogramming section. Explore the full Introduction to CUDA and Modern C++ Programming course wiki on Lykke — with notes, flashcards, quizzes and more interactive demos.
Open the Introduction to CUDA and Modern C++ Programming course →