https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106179
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |13.0
Known to work| |12.1.0
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This should be valid, although I don't know why they wrote it that way instead
of the more idiomatic and simple way: static_cast<Mat_<_Tp>>(commaInitializer)
