Lecture 2 - Slide 13 : 29

A reference in C++ is an alias

A reference is an alternative name for an object

  int k = 3;
  double a = 5.0;
  double &d = a;
  void f(int &i, double &d);

A reference in C++ can be understood as a generalization of "call by reference parameters"

Thus, C++ references are not just related to parameter mechanisms - they represent a broader concept