Contents
- 1 When to use an enum vs struct Stack Overflow?
- 2 Can a two enum types use the same enumeration constant?
- 3 How to emulate the namespace feature in C + +?
- 4 Is it possible to use enum wrapper in static methods?
- 5 What’s the difference between a struct and a class?
- 6 What is the scoped enum type in C + +?
When to use an enum vs struct Stack Overflow?
A struct can have members and methods, but an enumeration can have only labels and values for the labels. Let’s say you have a class Person and let’s say that for whatsoever reason a person can have an emotional state. Note that the enum members don’t have type.
Can a two enum types use the same enumeration constant?
Since enumeration constants share the “all other identifiers” namespace, no two enum types can use the same enumeration constants between them; you can’t do something like The compiler will complain that each of bletch, foo, and bar in the second enum definition have already been defined.
How to emulate the namespace feature in C + +?
So you simply have to choose different name for them. You can emulate the namespace feature in C++ to by naming the types in a certain way to accomplish basically the same thing. Something like this: struct s in C are nothing more than collections of data – they have no “smarts” to them.
Is it possible to create vs code snippets for enums?
It’s possible to create one or more VS code snippets for this. Visual Studio’s auto complete will be a little less happy with this. With enums it usually immediately auto selects the enum type name when you type e.g. Day x =. With this you’ll first have to (partially) type that.
Which is the default enum type in C #?
By default, enums are of type int; we can optionally specify another integer type instead. We can also assign any value of that type we like to represent each enum value: Because enumerations are little more than integers with names, they cannot have methods, constructors, or other features of structs and classes.
Is it possible to use enum wrapper in static methods?
In a similar fashion, static methods are now possible. I think it should be equally fast to just using the enum, since the compiler will probably take away most of the wrapper. Unless, of course, you add functionality, like validity checks, to methods. Need to create public static properties for all enum values.
What’s the difference between a struct and a class?
A struct can be a lot more complex though. It’s actually exactly the same as a class, except that members are public by default instead of private. Like a class, a struct can have member functions and template parameters and so on. One of the vital difference between structs and enums is that an enum doesn’t exist at run-time.
What is the scoped enum type in C + +?
To address these limitations the C++ enum class type was created; this type is also known as scoped enum or strongly typed enum. We can represent the suit of a card using this type: enum class Suit : char { spades = ‘S’, clubs = ‘C’, hearts = ‘H’, diamonds = ‘D’, none = ‘\\?’