MSVC chokes in forward class template declaration
It was a bug in MSVC manifested up to compiler version 19.22, and fixed in 19.23. Demo: https://gcc.godbolt.org/z/occvKEfc3
It was a bug in MSVC manifested up to compiler version 19.22, and fixed in 19.23. Demo: https://gcc.godbolt.org/z/occvKEfc3