Introduction of C Programming Language C Character Set Constants, Variables, Keywords Rules for Integer Variables Values Rules for Floating Variables Values Rules for Character Variables Values First C program Comments in C The main() function printf() and scanf() Format Specifiers C Instructions Operators in C Type Conversions Control Instructions Decision Control If statement If-else statement Nested if-else Statement The Switch Statement Logical Operators Conditional Operator

Types of Loops While loop For Loop Do-while Loop Nesting of Loops Multiple Initializations in the for Loop The Break Statement The Continue Statement Difference Between While and Do-While Loop: The Goto Statement Programming Errors in C Language Practice Question on Constants

Functions in C Parameters in C Function Points to Remember Ways to Call a Function Difference Between Call by Value and Call by Reference Storage Classes in C Storage Classes Which Storage Class to Use When Difference Between Compile-Time and Run-Time Errors Letters and their ASCII values in C

Introduction to Pointers Pointer Notation Symbols used in Pointers in C Declaring a Pointer Null Pointers Enumeration (enum) in C

Type Casting in C Recursion in C Integers - Signed and Unsigned

Arrays in C Different Ways to Initialize All Members of an Array to The Same Value: 2-D Arrays in C Passing Array to a Function in C Points to Remember Arrays of Pointers Exercise

Strings in C Examples Standard Library String Functions Passing strings to a function Practice Question

Introduction Of Structures Accessing Structure Elements Features of Structures Uses of Structures Practice Questions

Union in C Declaring Union Input/Output Console Input/Output Functions Formatted Console I/O Functions Unformatted Console Input/Output Functions File Input/Output File Opening Modes Operations on Bits One’s Complement Operator

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Enumeration(enum) is a user defined data type in C. It is mainly used to assign names to integral constants,the names make a program easy to read and maintain.

In the above example,we declared “day” as the variable and the value of “Thurs” is allocated to day,which is 3.

So,as a result 3 is printed.

Example 1:

Example 2:

Note:

Two enum names can have the same values.
If we do not explicitly assign values to enum names,the compiler by default assigns values starting from 0.
We can assign values to some name in any order.All unsigned names get value as value of previous name plus one.

Example:

Output:

1 2 5 6 10 11 12

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