enum-class - w3toppers.com

Is it safe to reinterpret_cast an enum class variable to a reference of the underlying type?

You might want to overload operator ++ for your enum if you really want to iterate its values: Foo& operator++( Foo& f ) { using UT = std::underlying_type< Foo >::type; f = static_cast< Foo >( static_cast< UT >( f ) + 1 ); return f; } and use for (Foo foo = Foo::First; foo <= … Read more

How can I output the value of an enum class in C++11

Unlike an unscoped enumeration, a scoped enumeration is not implicitly convertible to its integer value. You need to explicitly convert it to an integer using a cast: std::cout << static_cast<std::underlying_type<A>::type>(a) << std::endl; You may want to encapsulate the logic into a function template: template <typename Enumeration> auto as_integer(Enumeration const value) -> typename std::underlying_type<Enumeration>::type { return … Read more