pointer to member without 'this' - mem_fun like

[Vlad]

Frits van Bommel wrote:
> Vlad wrote:
>> Hi list,
>>
>> I was wondering if D has something like C's mem_fun, where one can 
>> pass a pointer to a member function of a class, that later can be 
>> called with various 'this' instances.
> 
> No, sorry.
> It does have delegates, but then the vtable lookup is performed when the 
> delegate is constructed. If that's okay, (i.e. if you only use this for 
> instances of the same type or subtypes that don't override that method) 
> you should be able to take a delegate and assign a new 'this' (.ptr) to 
> it before calling it...
> 

Thanks, this should do it - however I still need an(other) instance when 
passing the delegate, right?

>> Furthermore, does a similar mechanism for data members exist?
> 
> No. You could hack something together with pointer arithmetic, but it 
> won't be pretty. Some kind of wrapper could perhaps be written as a 
> struct template though.

Yeah, that was silly of me:). I will be using 'setters' and revert to 
the previous answer.

Thank you very much!

Vlad