Why the switch statement cannot be applied on strings?

Question

Compiling the following code and got the error of type illegal.

int main()
{
    // Compilation error - switch expression of type illegal
    sw         


        

Answer 1

More functional workaround to the switch problem:

class APIHandlerImpl
{

// define map of "cases"
std::map> in_events;

public:
    APIHandlerImpl()
    {
        // bind handler method in constructor
        in_events["/hello"] = std::bind(&APIHandlerImpl::handleHello, this, _1, _2, _3);
        in_events["/bye"] = std::bind(&APIHandlerImpl::handleBye, this, _1, _2, _3);
    }

    void onEvent(string event = "/hello", string data = "{}")
    {
        // execute event based on incomming event
        in_events[event](s, hdl, data);
    }

    void APIHandlerImpl::handleHello(server* s, websocketpp::connection_hdl hdl, string data)
    {
        // ...
    }

    void APIHandlerImpl::handleBye(server* s, websocketpp::connection_hdl hdl, string data)
    {
        // ...
    }
}