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

The this-pointer is an implicit pointer to the object in whose context you are working, you cannot reassign it.

According to Stroustrup's bible (The C++ Programming Language, 3rd edition I have) this is expressed as

C * const this

meaning you have a constant pointer to your class C, so the compiler will complain if you try to change it.

EDIT:

As I was corrected, the above mentioned expression does not describe this fully correctly, for this is actually an rvalue.