Re:F-strings for C++26 proposal [pdf]
by boguscoder on Monday February 03, 2025 @12:49AM
(#42915363)
Those are c++17
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Initially, C++20 and C++23 extended its use cases, and combined with concepts is a pretty sweet spot for compile time metaprogramming without SFINAE or tag dispatch tricks.
Much better than having yet another syntax for macros.