Comma, Increment and Decrement Operators

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Now, we will discuss about the Comma Operator :

• Comma operator some time treated as a Separator also.

We will take one example to understand how it will work :

main()

{

int i = 10, j =20 , k =30;       //Here comma ( , ) operator treated as a separator of i , j and k                                                      variables

k = i , j;              //Here comma ( , ) act as a operator

printf(” %d %d %d”, i , j , k);

}

 

Now we will discuss about Increment and Decrement Operator:

• This operator is a unary operator. It needs only one operand to perform a task.
• There are two types of the category are there :

1. Pre – Increment/Decrement ( i.e.  ++a, –a)
2. Post – Increment/Decrement ( i.e. a++ , a–)

• It will modify the operand value. So constant is not allowed ( i.e. 10 ++ is expression is totally wrong).

Pre increment:

 

Post Increment :

• Same you must do and it will be decrement operator.