//: C08:ConstTemporary.cpp // From Thinking in C++, 2nd Edition // Available at http://www.BruceEckel.com // (c) Bruce Eckel 2000 // Copyright notice in Copyright.txt // Temporaries are const class X {}; X f() { return X(); } // Return by value void g1(X&) {} // Pass by non-const reference void g2(const X&) {} // Pass by const reference int main() { // Error: const temporary created by f(): //! g1(f()); // OK: g2 takes a const reference: g2(f()); } ///:~