Define Operator, Operand, and Expression in 'C'

Category: Operator

An operator is a symbol which helps the user to command the computer to do a certain mathematical or logical manipulations. Operators are used in C language program to operate on data and variables. C has a rich set of operators which can be classified as

 

Define different types of Operators.

Category: Operator

An operator is a symbol which helps the user to command the computer to do a certain mathematical or logical manipulations. Operators are used in C language program to operate on data and variables. C has a rich set of operators which can be classified as

 

Which bitwise operator is suitable for checking whether a particular bit is ON or OFF

Category: Operator

Example: Suppose in byte that has a value 10101101 . We wish to check whether bit number 3 is ON (1) or OFF (0) . Since we want to check the bit number 3, the second operand for AND operation we choose is binary 00001000, which is equal to 8 in decimal.

 

What is the difference between ++var and var++

Category: Operator

The ++ operator is called the increment operator. When the operator is placed before the variable (++var), the variable is incremented by 1 before it is used in the expression. When the operator is placed after the variable (var++), the expression is evaluated, and then the variable is incremented by 1.

 

How does the prefix and postfix operator on expression

Category: Operator

}The operators present in prefix and postfix are

  • prefix increment operator denoted by ++
  • prefix decrement operator denoted by --
  • postfix increment operator
  • postfix decrement operator
 

What is Precedence of Operators

Category: Operator

When number of operators occurs in an expression the operator which is to be evaluated first is judged by applying priority of operators. The arithmetic operators available in C are

+ used for Addition

-  used for Subtraction

* used for Multiplication

/ used for Division

 

What is the functionality and restrictions of Modulus Operator

Category: Operator

When a division is performed the remainder of the operation is given by modulus operator. The modulus operator is denoted in c by symbol %. Say for instance we have two integer values x and y and then the operation x % y called as x modulus y gives the result as (x- (x / y) * y).  Say if x=18 and y =5 the x % y gives value as (18- (18 / 5) * 5) which gives (18-15) which results in 3 in other words the remainder of the division operation.

 


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