polytail
te
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polytail
te
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rust-like traits on plain C++ with short macro (type erasure actually)
Or dyno or Poly or Not-Actually-Boost.TE or ...
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C++ Polymorphism Without Inheritance Using Glaze
https://github.com/boost-ext/te Boost TE ("unnoficial boost project")
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[C++20] New way of meta-programming?
https://github.com/boost-ext/te (for SBO performance and type.erasure call syntax)
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Type Erasure in C++ Explained
And if it were in the standard there wouldn't be at least five well known libraries implementing it (including from Adobe and from Facebook): https://github.com/boost-ext/te#similar-libraries
As far as I know (I don't really follow the committee work) the latest attempt to introduce run-time duck-typing in the standard was https://github.com/andyprowl/virtual-concepts, which seems dead.
What are some alternatives?
glaze - Extremely fast, in memory, JSON and interface library for modern C++
dyno - Runtime polymorphism done right
DynaMix - :fish_cake: A new take on polymorphism
entt - Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
AnyAny - C++17 library for comfortable and efficient dynamic polymorphism
actix-net - A collection of lower-level libraries for composable network services.
proxy - Proxy: Next Generation Polymorphism in C++
old-new-win32api - Organized bookmarks to Win32API posts of Raymond Chen's blog "The Old New Thing".
azula - A fast, statically typed compiled language
hsm - Finite state machine library based on the boost hana meta programming library. It follows the principles of the boost msm and boost sml libraries, but tries to reduce own complex meta programming code to a minimum.