possible bug in wchar.i (swig 4.0.2) ?

Hi guys,

I have been trying to create a c# wrapper for a c++ structure that looks
like this:

struct Person {
    const wchar* name;
}

If I include wchar.i in my project file, I get an interface that looks ok.
BUT: When trying to compile, the getter for name will not be compilable
because of code that looks like this:

public string name {
   get {
       string ret = SomethingPINVOKE.Person_name_get(swigCPtr);  // the
return value here is a System.IntPtr
   }
}

assigning a System.IntPtr to a string is not possible and will therefore
not build.

I would suggest adapting the typemap for the getter generation so it looks
like this:

%typemap(csvarout, excode=SWIGEXCODE2) wchar_t * %{
    get {
      string ret =
global::System.Runtime.InteropServices.Marshal.PtrToStringUni($imcall);$excode
      return ret;
    } %}

The typemap for csout already contains the conversion, and maybe I am not
correct in my understanding of the problem here, but as it is right now,
without this change the generated code is unbuildable.

Best regards,
Fred

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