[Bug c++/90426] [P0732] Error constructing non-type template parameter from a prvalue

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90426

--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I posted a patch to improve diagnostics for this particular case:
https://gcc.gnu.org/ml/gcc-patches/2019-05/msg00529.html