[Bug libstdc++/91263] unordered_map and unordered_set operator== double key comparison causes exponential behavior

[fdumont at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91263

François Dumont <fdumont at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2020-01-06
                 CC|                            |fdumont at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |fdumont at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from François Dumont <fdumont at gcc dot gnu.org> ---
I confirm. I even wonder if there is not a Standard conformity issue here as
keys are supported to be compared using the container provided predicate, the
key type do not necessarily have a == operator.