o!(const(T)) parameter.

[sclytrack via Digitalmars-d-learn]

I want a function with parameter o!(const(Form)) to accept both 
o!(Form) and o!(immutable(Form))

Is there a way to do it?




import std.stdio;
import std.traits;


class Form
{
         int number = 10;
}

struct o(T)
{
         T data;

         this(T data)
         {
                 this.data = data;
         }

         o!(const(Unqual!(T))) constify() const
         {
                 return o!(const(Unqual!(T)))(data);
         }

         alias constify this;
}


void hello(o!(const(Form)) frm)
{
   writeln(frm.data.number);
   writeln(typeof(frm.data).stringof);
}

void main()
{
         writeln("This application works nicely");
         auto frm = o!(Form) (new Form());
//      auto ifrm = o!(immutable(Form)) (new immutable Form());

         hello(frm);
//      hello(ifrm);
}