copying the targets of pointers

[monarch_dodra]

This is going to sound stupid, but how do you have two pointers' 
targets copy each other? since pointers are used like reference 
types, how do you write the C++ equivalent of "*p1 == *p2"

Here is the context of what I'm trying to do:

----
struct S
{
   struct Payload
   {}
   Payload payload;

   @property
   typeof(this) dup()
   {
     typeof(this) ret;
     if(payload)
     {
       ret.payload = new Payload;
       ret.payload = payload; //Copies the payload? The pointer?
     }
     return ret;
   }
}
----

So yeah, that was my question. I'd be tempted to write:
ret.payload.field1 = payload.field1;
ret.payload.field2 = payload.field2;
...

But:
1) It feels hackish and just going around the problem
2) It works for pointer to Struct with fields, but what about 
things like "int*" ?

Oh yeah, also, if you have a better idea for an better (cleaner) 
implementation of a "payload based" "reference type" structs, I'm 
all ears.