[Bug c++/98885] [modules] forward declaration of classes prevent them from being exported at the point of actual declaration

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98885

Nathan Sidwell <nathan at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|rejects-valid               |accepts-invalid
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2021-01-29
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |nathan at gcc dot gnu.org

--- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
This is ill-formed.  an exported entity must be so-declared on its first
declaration.

A diagnostic is missing on the definition of the class.