opAssign(int) necessitates this(this) for automatic opAssign to work

[Simen kjaeraas]

On Sun, 27 Dec 2009 01:42:07 +0100, Ali Çehreli <acehreli at yahoo.com> wrote:

> I've tested the following with dmd 2.037.
>
> The compiler generated opAssign is disabled by the definition of  
> opAssign(int). The compiler rejects the following assignment operation.  
> (The error message is in the comment below.)
>
> Is this by design?
>
> When I also define post-blit, the compiler generated opAssign is  
> available again and seems to work correctly. (My struct doesn't have any  
> members for brevity.)
>
> The program below compiles when this(this) is provided.
>
> void main()
> {
>      S s0;
>      s0 = s0;    // ERROR
> }

This piece of code does post-blit, not opAssign(int).
Try defining opAssign(S). That should work here.
The problem is, opAssign(int) takes a right-hand parameter of type int,
whereas s0 = s0; has a rhs of type S.

-- 
Simen