4 ms·

It was in the spec but never implemented, so it's obly a feature of C++ if you take the stance that there are no real implementations of C++.

• moralestapia 3y ago
  IIRC it was present in Clang back at the time (which was relevant to us as we were using it); not sure about gcc or others.
• TeMPOraL 3y ago
  If you want to go this way, then take a look at compiler support matrix for last few language versions - if having an implementation is necessary for something in spec to "be a feature of C++", then C++20 and C++23 are still missing some features they're supposed to have.
• pjmlp 3y ago
  Several features in ISO are yet to be fully implemented, there are compilers still catching up with C++17. GC isn't the first one to victim of such lack of implementations, only EDG implemented C++98 external templates, for example.
  • pbsd 3y ago
    extern templates are a C++11 feature. export templates are the removed C++98 feature.
    • pjmlp 3y ago
      Thanks for the correction, I meant obviously export templates.