[Bug libstdc++/85812] New: make_exception_ptr can leak the allocated exception if construction throws

[redbeard0531 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85812

            Bug ID: 85812
           Summary: make_exception_ptr can leak the allocated exception if
                    construction throws
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redbeard0531 at gmail dot com
  Target Milestone: ---

I think if this line throws the exception allocated on line 185 will leak:
https://github.com/gcc-mirror/gcc/blob/3474beffb1fd23da44a752763e648d5d1ffa4d0f/libstdc%2B%2B-v3/libsupc%2B%2B/exception_ptr.h#L189.