https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93205
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org Target Milestone|--- |8.4 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- The same problem exists for other operator>> overloads. It looks like all the istream reads in that file are unchecked, so full of undefined behaviour. Ouch.