initialization of structs

[Timon Gehr]

On 09/26/2011 10:55 PM, Christian Köstlin wrote:
> Hi,
>
> I have the problem, that I want to always construct a struct with a
> parameter. To make this more comfortable (e.g. provide a default
> parameter I have a factory function to create this struct).
>
> struct S {
> int i;
> this(int i_) { i = i_; }
> }
>
> S createS(int i=5) {
> return S(i);
> }
>
> My question now is:
> Is there a way to enfore the creation of the struct with createS?
> Or to put it in another way. Is it possible to forbid something like:
> S s; or even auto s = S(1);? I read about the this(this) thing, but that
> is only used when the struct is copied, as far as I understood.
>
>
> (My struct has the nature to only work if it is not constructed with the
> default struct constructor).
>
> thank in advance
>
> christian

Starting with DMD 2.055, this works.

struct S{
     this() @disable;
     this(int i_) { i = i_; }
}