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- //: C03:PassReference.cpp
- // From Thinking in C++, 2nd Edition
- // Available at http://www.BruceEckel.com
- // (c) Bruce Eckel 1999
- // Copyright notice in Copyright.txt
- #include <iostream>
- using namespace std;
-
- void f(int& r) {
- cout << "r = " << r << endl;
- cout << "&r = " << &r << endl;
- r = 5;
- cout << "r = " << r << endl;
- }
-
- int main() {
- int x = 47;
- cout << "x = " << x << endl;
- cout << "&x = " << &x << endl;
- f(x); // Looks like pass-by-value,
- // is actually pass by reference
- cout << "x = " << x << endl;
- } ///:~
-