/** @file list3803.cpp */
/** Listing 38-3. Declaring and Using References */
#include <iostream>
#include <ostream>

int main()
{
  int answer(42);    // definition of a named object, also an lvalue
  int& ref(answer);  // declaration of a reference named ref
  ref = 10;          // changes the value of answer
  std::cout << answer << '\n';
  int const& cent(ref * 10); // declaration; must be const to initialize with expr
  std::cout << cent << '\n';
}