Re: Class casting

[Nathan Sidwell <nathan at codesourcery dot com>]

Justin Miller wrote:
> Interestingly enough, if you did this:
>
> int main() {
>         B b;
>         C* c = new C(b);
> }
>
> It will compile and work as expected. The constructor wants an A, a B is
> an A, so everything is fine.
>
> Why one needs to declare the B first, rather than instantiating the
> temporary as in the code below, I have no idea. Can anyone shed some
> light on this?
class C{
    public:
    C(A& a) : initialize....{do Stuff;}

The 'B ()' part of 'C (B ())' cannot bind to a non-const reference.

nathan
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