Compiling shared example.

[Ali Çehreli]

On 10/26/2012 02:22 PM, Peter Sommerfeld wrote:
> To learn about shared attribute I've copied nearly verbatim an
> example from Andreis book. The code:
>
> import core.atomic;
>
> struct Data{
> int value;
> }
>
> shared struct SharedStack(T) {
>
> private shared struct Node{
> T data;
> Node* next;
> this(T value){data = value;};
> }
> private Node* root;
>
> // push
>
> void push(T value){
> auto n = new Node(value);
> shared(Node)* oldRoot;
> do {
> oldRoot = root;
> n.next = oldRoot;
> } while(!cas(&root,oldRoot,n)); // line 30
> }
> // ...
> }
>
> SharedStack!(Data) q;
>
> void main(string[] args){
>
> Data m;
> q.push(m); // line 40
> }
>
> I got the following error (dmd 2.060 win):
>
> (40) Error function main.SharedStack!(Data).SharedStack.push(Data value)
> shared is not callable using argument types (Data)
>
> (30) template core.atomic.cas does not match any function template
> declaration
>
> What is wrong here ?
>
> Peter

The following two changes are the workaround at least for compilation:

         auto n = cast(shared)new Node(value);
// ...

shared SharedStack!(Data) q;

Ali