[Bug c++/64759] The compiler does NOT show a warning in a case where it is reasonable to expect a warning message.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64759

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Lakshay Garg from comment #2)
> It makes sense to compare against 0 but not 0.0

Huh? Why not?

This code seems perfectly reasonable to me:

 double divisor;
 std::cin >> divisor;
 if (!divisor)
   throw std::invalid_argument("Divide by zero attempted");