[Bug c++/111723] #pragma GCC system_header suppresses errors from narrowing conversions

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111723

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this is correct behavior really.
Note even clang with libc++ has the same behavior ...