Re: Without multiples inheritance, how is this done?

[Adam D. Ruppe via Digitalmars-d-learn]

On Saturday, 8 May 2021 at 18:33:35 UTC, Jack wrote:
```d
abstract class DRY : Base
{
    this(int n)
    {
        this.n = n;
    }
    override int f()
    {
        super.doSomething();
        return n;
    }

    private int n;
}
```

You can change that from abstract class to `mixin template`, make 
Foo and Baa be `interface`, then use `mixin DRY;` inside your 
child class.