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Seems that it could be used to solve an old-time classic: generate a mapping from an enum value to its string representation. Another use case that comes to my mind is maybe automating test case generation. Occasionally I was running into situations where I thought code generation could be useful, but not sure what could be a "killer app" equivalent for this feature.

Related topic: standardizing reflection in c++. https://youtu.be/ARxj3dfF_h0 https://en.cppreference.com/w/cpp/keyword/reflexpr



Enum to string is a one-line expression in Circle: https://godbolt.org/z/93f5o77zv

Circle has dozens of special traits for accessing useful stuff about types, packs, etc. Don't need to overengineer such a simple thing.


There is also this approach - https://github.com/Neargye/magic_enum

the trick (relyiong __FUNCTION__ like macros/(funcs?)) is here - https://github.com/Neargye/magic_enum/blob/master/include/ma...

and https://github.com/Neargye/magic_enum/blob/master/include/ma...


What’s wrong with an array


that would be great :-)




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