Re: Can 'this' be assigned a pointer to it?

Hi,

I read C++ for some time, but I still has problem in understand it.
Below is from web tutorial. It requires to debug it, but I cannot figure out
what is wrong with the void change function.

The error message says that this must be a lvalue. Does that mean 'this'
cannot be assigned a value? Then the change function is invalid?
What it wants me to do?

Please at least give a little hint on it.

thanks,

#include<iostream>
using namespace std;

class Test
{
private:
  int x;
public:
  Test(int x = 0) { this->x = x; }
  void change(Test *t) { this = t; }
  void print() { cout << "x = " << x << endl; }
};

int main()
{
  Test obj(5);
  Test *ptr = new Test (10);
  obj.change(ptr);
  obj.print();
  return 0;
}