C PROBLEM

Question

How to you ENUM in C and what is the Syntax of it ?

Answer 1

enum stands for "enumeration" and it is a user-defined data type in C.

An enum can be declared as;
enum enum_var_name {list_of_constants separated by commas};
EX: enum week {Mon, Tue, Wed, Thu, Fri, Sat, Sun};

By default, these constants' index numbers start from 0. i.e: Mon has the index number 0, Tue has the number 1, etc.

If you need to customize the index numbers, it is possible as follows.
Ex: Let's say you wanna start the indexing of weekdays from 5, not from 0, and weekends from 12.
enum week {Mon = 5, Tue, Wed, Thu, Fri, Sat = 12, Sun};

In here, the index values are assigned as follows.
Mon -> 5
Tue -> 6
Wed -> 7
Thu -> 8
Fri -> 9
Sat -> 12
Sun -> 13

I hope you have got an idea.