[Bug c++/86227] invalid suffix on floating constant

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86227

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Did you add -pedantic-error or use -std=c++11 ?  This is the decimal floating
point extension that gcc supports that llvm does not.