• BizarreCake (30/30) Aug 07 2011 While messing with threads from std.concurrency, I've been getting
• Trass3r (6/8) Aug 07 2011 As the message already tells a class method yields a delegate and not a ...

BizarreCake <bizarrecake gmail.com> writes:

While messing with threads from std.concurrency, I've been getting
this weird problem.

The code below, runs perfectly fine.

-------------------------------------------
  import std.concurrency;

  void main( ) {
    spawn( &func );
  }

  void func( ) {

  }
--------------------------------------------

But when func( ) is moved to a class:

-------------------------------------------
  import std.concurrency;

  void main( ) {
    auto c = new C;
    spawn( &c.func );
  }

  class C {
    void func( ) {

    }
  }
--------------------------------------------

doesn't compile at all. It produces the following errors:
  - Error: template std.concurrency.spawn(T...) does not match any
function template declaration

  - Error: template std.concurrency.spawn(T...) cannot deduce
template function from argument types !()(void delegate())

Am I doing it wrong? Is there a workaround?
Thanks.

Trass3r <un known.com> writes:

   - Error: template std.concurrency.spawn(T...) cannot deduce
 template function from argument types !()(void delegate())

As the message already tells a class method yields a delegate and not a  
function.
Check if that method could be made static.
But if you really need to do it this way, you may create a static wrapper  
function that calls the method on a particular class instance. You should  
be able to use a function literal as well.