Here is some code that uses an enum:

Question

enum color {red, green, blue};
color paint = green;
cout << paint << endl;
Rewrite this using strong enums. What is the advantage of strong enumerations over the
old style enumeration?

Answer 1

color paint = color::blue;
switch (paint)
{
case color::red:
cout << "red";
case color::green:
cout << "green";
case color::blue:
cout << "blue";
}
You may have discovered that you cannot print out an enum class with cout. This is
because enum classes are strongly typed and are not a simple mapping to integers. This
allows for stronger type checking which can help prevent storing invalid values in an eum
class variable.