prog.cpp: In function 'int main()':
prog.cpp:8:23: error: cannot convert 'Fruit' to 'int' in initialization
prog.cpp:9:31: error: no match for 'operator==' in '(Vehicle)1 == (Fruit)1'
prog.cpp:9:31: note: candidates are: operator==(Fruit, Fruit) <built-in>
prog.cpp:9:31: note: operator==(Vehicle, Vehicle) <built-in>