non-const reference to temporary (was: non-const copy ctor)

Christian Fröbel cfroebel@web.de
Sun Apr 9 20:14:00 GMT 2006


Hi Andrew,

Andrew Haley wrote:
> [...]
> I can.  "The initializer of a const T& need not be an lvalue..."  In
> other words, although he doesn't explicitly say so, the initializer of
> a const T& has to be an lvalue.

Yes, I guessed so as well. But what's the reason for this decision?

>
>  > I understand that it generally doesn't make sense to alter a
>  > temporary object. But why forbid it?
>
> Because, semantically speaking, it makes no sense.

Yes, mostly. And that this is forbidden imposes a problem in the rare cases 
where it does make sense. And in those cases where someone does not want to 
use const at all (like me).

Thanks,
  Christian

>
> But we're way off topic now.
>
> Andrew.



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