Is “enum class” a class type in C++?

Question

I read about enumeration declaration in C++ using cppreference.

Then I have made Enum class and check whether it is a class type or not using std:

Answer 1

Despite the class keyword, enumerations are not classes. That keyword only means the enumerators must respect certain scoping rules (and also prevents implicit integral conversions).

The choice of the keyword is due to the aspects brought about by the new type¹, and how scoped enumerators were hacked together in the pre-C++11 era, to obtain said aspects:

struct Enum { // could just as well be a class.
  enum {
    red = 1, blue, green
  };
};

Which only allowed the enumerators to be accessed via the qualified name. Though it didn't prevent implicit conversions like true scoped enumerations do.

is_class is meant to identify the class/struct aggregate types.

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_{¹ B. Stroustrup - C++11 FAQ}