20. Dereference operator

• 
  #include <iostream>
  using namespace std;
  
  int main()
  {
      char* location = "HELLO";
  
      // If offset is zero, we can access memory by
      cout << location[ 0 ] << "\n";
  
      // The following does the same thing:
      cout << *location << "\n";
  
      return 0;
  }
  
  

• Obtaining something from a memory location at the specified address is called dereference

• Expression *location uses dereference operator (or indirection operator)