[Bug c++/65801] [5/6 Regression] Allow -Wno-narrowing to silence stricter C++11 narrowing rules

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65801

--- Comment #17 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #16)
> What is printed with -Wno-error=narrowing ?

Try it yourself?
Just a warning.