Re: c++/cli compiler oddity

Carl Daniel [VC++ MVP] wrote:


I have submitted this as

http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=251723

but I have subsequently found another report that looks related

http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=231831

Now I have found another odd thing, which seems a much more obvious error

in C++/cli, this does not compile:

generic<typename T, typename V> where V: T, gcnew()
public ref class B {
public:
  void FuncB() {
    //error C2440: 'initializing' : cannot convert from 'V' to 'T'
    T t = gcnew V();
  }
};

but in C# this compiles fine:

  public class B<T, V> where V : T, new() {
    public void Func() {
      T t = new V();
    }
  }

I guess I will have to do a cast to work around this but it seems odd.

--

Martin