Templates Made Easy With C++20
summary
Argues that C++20 concepts plus if consteval and fold expressions let teams replace SFINAE-heavy template hacks with readable code, showing concrete rewrites: a constexpr Fibonacci, an In-Place Processor concept for audio buffers (process(span<float>)), a block processor using std::invocable to avoid std::function allocations, and a property system that uses a fold to register name/defaults with get_default_value overloads that pick value, function, or default-initialized. Live TDD builds an A/B processor with conditional reset and catches a common missing requires mistake.
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chapters (6)
- 0:00Introduction
- 10:10Traditional template basics
- 20:52C++20 concepts
- 31:47Advanced requires clauses
- 40:16Live coding with TDD
- 53:57Q&A
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