How do you get an integer from an enum?

How do you get an integer from an enum?

1. To get the enum for a given integer, we simply have to call the valueOf method, like below.
2. On the other hand, to get the integer value from an enum, one can do as follows, by using the getValue method.
3. The getValue method simply returns the internal value of the enum that we store within the value variable.

Can enum have int values?

The enum can be of any numeric data type such as byte, sbyte, short, ushort, int, uint, long, or ulong. However, an enum cannot be a string type.

How do I create an enum in Objective C?

Objective-C Language Enums Defining an enum typedef NS_ENUM(NSUInteger, MyEnum) { MyEnumValueA = 0, MyEnumValueB = 5, MyEnumValueC = 10, }; You can also specify on the first value and all the following will use it with increment: typedef NS_ENUM(NSUInteger, MyEnum) { MyEnumValueA = 0, MyEnumValueB, MyEnumValueC, };

Can you cast an enum to an int?

Just cast the enum, e.g. int something = (int) Question. Role; The above will work for the vast majority of enums you see in the wild, as the default underlying type for an enum is int .

What is enum value?

An enumeration type (or enum type) is a value type defined by a set of named constants of the underlying integral numeric type. To define an enumeration type, use the enum keyword and specify the names of enum members: C# Copy.

Why don’t we use strong for enum property in Objective-C?

We don’t use strong for enum property in Objective-C because enums aren’t objects so we can ‘t specify them as strong or weak.

Are enums ints?

I recently explained that although both C and C++ provide void * as the generic data pointer type, each language treats the type a little differently. For any object type T , both C and C++ let you implicitly convert an object of type T * to void * .

What is enumerated data type in C?

Enumeration or Enum in C is a special kind of data type defined by the user. It consists of constant integrals or integers that are given names by a user. The use of enum in C to name the integer values makes the entire program easy to learn, understand, and maintain by the same or even different programmer.

What is enum data type in C?

Why enum is used in C?

What is Instancetype in Objective-C?

instancetype. Use the instancetype keyword as the return type of methods that return an instance of the class they are called on (or a subclass of that class). These methods include alloc , init , and class factory methods.

What is Ns_unavailable?

In Objective-C we can mark certain methods as NS_UNAVAILABLE meaning we will get a compiler level error if there is an attempt to call them. This can be useful when a sub class wants to reduce the scope of the api of the superclass it inherits from.

What is the difference between swift and Objective C?

Swift is a general-purpose, high-level programming language which is highly concerned about safety, performance. Objective C is an general purpose language which is considered as superset of C language it was designed in an aim of providing object-oriented capabilities.

What is optional in Objective C?

Objective-C Language Protocols Optional and required methods This means that any class that conforms to this protocol must implement those methods. It is also possible to declare optional methods. These method can be implemented only if needed. You mark optional methods with the @optional directive.

Are enum ints in C?

In C, each enumeration constant has type int and each enumeration type is compatible with some integer type. (The integer types include all three character types–plain, signed, and unsigned.) The choice of compatible type is implementation-defined.