What does “warning: not all control paths return a value” mean? (C++)

Question

The exact warning I get is

warning C4715: \'hand::show\' : not all control paths return a value

and hand::show is

std::ostr         


        

Answer 1

The error means that if side is neither left nor right, your function will not return a value - either side is declared improperly or your enum is. An enum should be defined like

enum orientation {left, right};

So try changing your orientation structure to that.