[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 #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(well, apart from not checking if the input operation failed ;-)