Did you feel the need?

Conditional Members

by Barry Revzin

From the article:

I’d previously written a post about if constexpr (and how it’s not broken). I argued in that post how, broadly speaking, C++20 gives you the tools to solve the problems you want, even if they work a bit differently to D’s static if (with one notable exception, which this post greatly expands on). Now, over the past couple years, I’ve been working on a project that really is a deep dive into what Andrei calls “Design by Introspection.” This approach (for lack of a better definition), relies on conditioning functionality based on template parameters...