Re: Array of derived class objects?

[Ali Çehreli]

On 03/06/2012 11:27 AM, H. S. Teoh wrote:

Code:

        // test.d
        class A {}
        class B : A {}
        class C : A {}
        void main() {
                A[] objs = [ new B, new C ];    // line 6
        }

Compiler error:

        test.d(6): Error: cannot implicitly convert expression (new B) of type 
test.A to test.C
        test.d(6): Error: cannot implicitly convert expression ([(__error),new 
C]) of type C[] to A[]

I thought D was supposed to automatically infer the most derived common
base class to assign to an array literal of different types? At least,
that's the impression I got from TDPL.

What am I doing wrong?


T

That's probably this bug:

  http://d.puremagic.com/issues/show_bug.cgi?id=5498

Luckily it has a pull request.

Ali