interface and class inheritance

[Agustin]

On Thursday, 14 November 2013 at 21:42:38 UTC, Agustin wrote:
> On Thursday, 14 November 2013 at 21:20:57 UTC, Oleg B wrote:
>> [code]
>> import std.stdio;
>>
>> interface A { void funcA(); }
>> class B { final void funcA() { writeln( "B.funcA()" ); } }
>>
>> class C: B, A { }
>>
>> void main()
>> {
>>    auto c = new C;
>>    c.funcA();
>> }
>> [code/]
>>
>> $ dmd -run interface.d
>> interface.d(6): Error: class interface.C interface function 
>> 'void funcA()' is not implemented
>>
>> if swap A and B
>> [code]
>> class C: A, B { }
>> [code/]
>>
>> $ dmd -run interface.d
>> interface.d(6): Error: class interface.C base type must be 
>> interface, not interface.B
>>
>> how to workaround this without change in class B and interface 
>> A?
>
> Try
>
> interface A {
>   final void funcA();
> }
> class B {
>   final void funcA() { writeln( "B.funcA()" ); }
> }
>
> class C: B, A { }

Oh sorry i mean

interface A {
   void funcA();
}

class B : A {
   final void funcA() { writeln( "B.funcA()" ); }
}

class C : B {
}