🚀 go-pugleaf

In article h00@engnews1.eng.sun.com, clamage@Eng.Sun.COM (Steve Clamage) writes:
>
>
>If we assume that the VALUE of p does not change, the question is whether
>the object it points to can change type (except during construction and
>destruction). I think the answer is no, in which case the optimization is valid.

I meant to say:

The question is whether an object can change type during execution of a
member function other than during construction or destruction.

You can allocate raw storage, construct an object in it, destroy the
object, and construct a new object of different type at the same location.
The key point is whether you can do that during execution of a member
function on behalf of the original object.

I think the answer is no.
---
Steve Clamage, stephen.clamage@eng.sun.com



---
[ comp.std.c++ is moderated.  Submission address: std-c++@ncar.ucar.edu.
  Contact address: std-c++-request@ncar.ucar.edu.  The moderation policy
  is summarized in http://dogbert.lbl.gov/~matt/std-c++/policy.html. ]