https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84573

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW

--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
I believe the warning would be helpful because as I mentioned in comment #0:

  ...the only valid specialization of such a template is one where T = void
it's likely that the missing return statement is a mistake...

A function template that returns a template argument should be defined that way
even if it's meant to be instantiated on void:

  template <class T>
  T g () { return T (); }   // valid for any default-constructible type, even
void

  void h () { return g<void>(); }   // valid

Warning for a missing return statement would be helpful in template libraries
that rarely instantiate all their code either during a build or in their tests.

Reply via email to