/* Code for exercise 10.15. |  | "C++ Solutions--Companion to The C++ Programming Language, Third Edition" | by David Vandevoorde; Addison-Wesley 1998; ISBN 0-201-30965-3. | | Permission to use, copy, modify, distribute and sell this software | and its documentation for any purpose is hereby granted without fee. | The author makes no representations about the suitability of this | software for any purpose.  It is provided "as is" without express or | implied warranty. `----------------------------------------------------------------------*/#include <iostream>int main() {   std::cout << "Hello, world!\n";}struct GlobalBracket {   GlobalBracket() { std::cout << "Initialize\n"; }   ~GlobalBracket() { std::cout << "Clean up\n"; }} global_bracket_variable;