How to use enums in C

Suppose we have an enum like the following:

enum Days {Saturday, Sunday, Tuesday, Wednesday, Thursday, Friday};

I want to create an instance of this enum and initialize it with a proper value, so I do:

Days day = Days.Saturday;

Now I want to check my variable or instance with an existing enum value, so I do:

if (day == Days.Saturday)
{
    std::cout << "Ok its Saturday";
}

Which gives me a compilation error:

error: expected primary-expression before ‘.’ token

So to be clear, what is the difference between saying:

if (day == Days.Saturday) // Causes compilation error

and

if (day == Saturday)

What exactly do these two terms mean, in that one is OK and the other generates a compilation error?

Jul 7, 2022 in C++ by Nicholas
• 7,760 points • 550 views

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