[Bug c++/114050] Inconsistency in double/float constant evaluation between 32 and 64 bit

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114050

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
`0.0003 - 0.0001*3.0` with -std=c++23 is done all in long double and then
casted to double. Which is why b is 0 there.