The Status of Const

[Leandro Lucarella]

Tomek Sowiński, el 14 de agosto a las 02:52 me escribiste:
> Walter Bright napisał:
> 
> > But there is a solution:
> > 
> > const(Object)* o;
> 
> Interesting. How do you cook that with polymorphism? This doesn't work:
> 
> interface I { }
> class A : I {}
> 
> void main() {
>     immutable A a = new immutable(A);
>     immutable(A)* ap = &a;
>     // Error: cannot implicitly convert expression (ap) of type immutable(A)* to immutable(I)*
>     immutable(I)* ip = ap;
> }
> 
> BTW, should this work?:
> immutable(A)* ap = &new immutable(A);
> Now it fails with "new immutable(A) is not an lvalue".

I don't think so, you're taking the address of a temporary.

-- 
Leandro Lucarella (AKA luca)                     http://llucax.com.ar/
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