https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67557
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |trippels at gcc dot gnu.org
Resolution|--- |INVALID
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
No, this is invalid and undefined.
See §12.6.2 - 14:
»Member functions (including virtual member functions, 10.3) can be called for
an object under construction. Similarly, an object under construction can be
the operand of the typeid operator (5.2.8) or of a dynamic_cast (5.2.7).
However, if these operations are performed in a ctor-initializer (or in a
function called directly or indirectly from a ctor-initializer) before all the
mem-initializers for base classes have completed, the result of the operation
is undefined.«
