5 ms·

Mapping Types to Values (in C++)

• ambrop7 10y ago
  I only skimmed the article but it seems this requires "registration" for each type and does not support template types. What I would love to see it a completely generic type-to-value map ToValue<T> for ANY T, possibly template types, and without any sort of registration required. If the results are integers or otherwise ordered, they could then be used for compile-time ordered data structures like RB trees or heaps, for the implementation of some metaprogramming concepts. Granted I believe that is impossible in plain C++.
  • nice_byte 10y ago
    No registration required: http://cpp.sh/4zlbc http://cpp.sh/4zlbc
    • ambrop7 10y ago
      I was implying a compile-time solution, i.e. where the result of the mapping is constexpr. On second though, maybe it can be done at compile time, with this: http://b.atch.se/posts/constexpr-counter/ http://b.atch.se/posts/constexpr-counter/