Summary
This episode explores the evolution from SFINAE (Substitution Failure Is Not An Error) to C++20's Concepts feature. Jason demonstrates how traditional SFINAE patterns using std::enable_if and type traits produce difficult-to-read code and error messages. He then shows how C++20 Concepts provide a cleaner, more intuitive syntax for constraining template parameters, return types, and local variables, resulting in more readable code and much clearer error messages for users.
Related C++ Standard Sections
This episode covers topics found in these sections of the C++ standard:
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[concepts.arithmetic]40% match