You're right that it should be int main() to be valid C++: 2 An implementation shall not predefine the main function. This function shall not be overl

You're right that it should be int main() to be valid C++: 2 An implementation shall not predefine the main function. This function shall not be overloaded. It shall have a return type of type int, but otherwise its type is implementation-defined. But note: 5 A return statement in main has the effect of leaving the main function (destroying any objects with auto- matic storage duration) and calling exit with the return value as the argument. If control reaches the end of main without encountering a return statement, the effect is that of executing return 0; The other two points I disagree with. =P