Re: [boost] Re: in/out parameters, codingstylesandmaintenance

From: Noel Yap (Noel.Yap_at_[hidden])
Date: 2003-05-04 09:47:43

Gregory Colvin wrote:
> 
> I don't see the point of providing this
> 
>     void SetArea(c_out<CShape> s)
>     {
>             CShape &ls = s.get_ref();
>             ls.SetArea(100);
>     }
> 
> and then writing this
> 
>     SetArea(out(psq));
> 
> instead of just writing this in the first place
> 
>     psq->SetArea(100);

I think a larger point that should be emphasized is that noone so far
has been able to come up with a function that takes an out parameter
that cannot be rewritten to return a value.  IMHO, it makes sense to do
so stylistically.

I can understand some rationale for c_in and c_in_out, but not for
c_out.

Noel