https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97401
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to tangyixuan from comment #0)
> Usually, it will has a default value '0', and thus 'b[a]' could be declared
> as b[0] perhaps.
But b[0] would be ill-formed.
All compilers reject this if you actually instantiate the template, because
it's ill-formed.
