On Thu, 29 Dec 2011 08:01:51 +0000, Adrian Mercieca wrote:
> Hi folks,
>
> I've got this very simple program, for which I keep getting compiler
> errors at the 'cas' function call.
>
> import
> std.stdio,
> core.atomic;
>
> class Int
> {
> public:
> this(int v) {
> this._v = v;
> }
>
> private:
> int _v;
> }
>
>
> void main()
> {
> shared(Int) a = new shared(Int)(10);
> shared(Int) b = new shared(Int)(20);
> shared(Int*) p = &a;
>
> if ( cas(p, a, b) ) {
> writeln("Swap OK");
> }
> }
>
> The errors are:
>
> Error: template core.atomic.cas(T,V1,V2) if
> (__traits(compiles,mixin("*here = writeThis"))) does not match any
> function template declaration
>
> Error: template core.atomic.cas(T,V1,V2) if
> (__traits(compiles,mixin("*here = writeThis"))) cannot deduce template
> function from argument types !()(shared(Int*),shared(Int),shared(Int))
>
> Is it not possible to compare and swap object references in the cas
> function call? Would someone kindly tell me as to what I am doing wrong?
>
> Thanks.
> - Adrian.
Hi,
I think I got it; the class (Int) needs to be declared as shared.
Thanks.
