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When working with std::variant, processing the current active member can lead to cumbersome code.

An alternative, especially when the processing code is generic, is the std::visit.

The std::visit requires as an argument an invocable that is compatible with each of the contained types. This can be achieved through a combination of concrete and generic operator() overloads.

Compiler Explorer link: https://compiler-explorer.com/z/fMoMTjsrG