如何将枚举传递给方法而不将其作为整数传递

Question

I Have an enum which contains 3 different values

enum
{
    inputValidation_Zipcode,
    inputValidation_String,
    inputValidation_Number
} InputValidation;

I am trying to pass one of these three enum values to a method, and have tried the following.

bool methodName(enum InputValidation inputenum)

bool methodName(InputValidation inputenum) 

and ofc

bool methodName(int inpoutenum) 

(All three called as methodName(InputValidation_Number) )

I know the last one will "work" but allows ALL integers as arguments. How can I Write a method to only accept the inputValidation values?

Answer 1

Your enum definition is wrong, it should be:

enum /*class*/ InputValidation
{
    inputValidation_Zipcode,
    inputValidation_String,
    inputValidation_Number
};

Then you might use:

bool methodName(InputValidation inputenum);

Answer 2

Give scoped enum a try by adding class as follows:

enum class InputValidation
{
    inputValidation_Zipcode,
    inputValidation_String,
    inputValidation_Number
};

For more information: https://en.cppreference.com/w/cpp/language/enum