Change 'this' pointer of an object to point different object

Question

class C{
   //methods and properties
}

void C::some_method(C* b){
    delete this;
    this = b;     
}

This gives me follwing error when compiling:

Answer 1

You can't assign a different value to this as it point to the object itself, and this haven't any sense. You could instantiate a new object and use its implicit this pointer instead.

Moreover, if you try to make a copy of object, you can overwrite operator=

class Foo
{
  public:
    [...]
    Foo& operator=(const Foo& foo);
}

int main()
{
 Foo foo;
 foobar = foo; //invoke operator= overwrited method
}