This document discusses the different types of operators used in the C programming language. It outlines 7 categories of operators: 1) Arithmetic operators, 2) Relational operators, 3) Logical operators, 4) Assignment operators, 5) Increment and decrement operators, 6) Conditional operators, and 7) Bitwise operators. For each category, it provides examples of the operators and how they are used to manipulate variables and evaluate expressions in C programs. Special operators like the comma operator and sizeof operator are also briefly explained.

1. Pt. Mohan Lal SD College For Women
Gurdaspur
TOPIC : C Operators
Created by: Mrs. Rajni
Asst. Prof. in Computer Science

2. What is an operator
 An operator is a symbol that tells the computer to
perform certain mathematical or logical
manipulations.
 These operators are used in programs to manipulate
data and variables

3. C Operators
1. Arithmetic operators
2. Relational Operators
3. Logical Operators
4. Assignment Operators
5. Increments and Decrement Operators
6. Conditional Operators
7. Bitwise Operators
8. Special Operators

4. Arithmetic operators
Operator Meaning
+ Addition or Unary Plus
– Subtraction or Unary Minus
* Multiplication
/ Division
% Modulus Operator

5. Integer Arithmetic
Let x = 27 and y = 5
z = x + y 32
z = x – y 22
z = x * y 115
z = x % y 2
z = x / y 5

6. Floating point arithmetic
Let x = 14.0 and y = 4.0
then z = x + y 18.0
z = x – y 10.0
z = x * y 56.0
z = x / y 3.50

7. Relational Operators
Operator Meaning
< is less than
<= is less than or equal to
> is greater than
>= is greater than or equal to
== is equal to
!= is not equal to

8. Relational Expressions
6.5 <= 25 TRUE
-65 > 0 FALSE 10
< 7 + 5 TRUE

9. Logical Operators
Operator Meaning
&& Logical AND
|| Logical OR
! Logical NOT

10. Find out the answer
a > b && x = = 10
a < m || a < n
! (x >= y)
a = 5
b = 4
x=10, y = 9
m=6
n = 3

11. Assignment Operators
Statement with simple Statement with
assignment operator shorthand operator
a = a + 1 a += 1
a = a – 1 a -= 1
a = a * (n+1) a *= (n+1)
a = a / (n+1) a /= (n+1)
a = a % b a %= b

12. Increment and Decrement
OperatorsTwo most useful operators which are present in 'c' are
increment and decrement operators. Operators: ++ and
–-
The operator ++ adds one to the operand
The operator -- subtracts one from the operand.
Both are unary operators and can be used as pre or post
increment/decrement

13. CONDITIONAL OPERATORS
 These conditional operator are used to construct
conditional expressions of the form.
Syntax: exp1?exp2:exp3.
where exp1,exp2,exp3 are expressions.
Operator: ?: (ternary operator)

14. BITWISE OPERATORS
 These operators works on bit level
 Applied to Integers only
OPERATOR MEANING
& Bitwise AND
| Bitwise OR
^ Bitwise Exclusive OR
<< Shift Left
>> Shift Right

15. SPECIAL OPERATORS
 C' supports some special operators such as comma
operator, sizeof operator and pointer operators.
 Comma operator: the comma operator is used to
combine related expressions. A comma linked list of
expressions are evaluated left to right and the value of
right most expression is the value of combined
expression.. Example: value=(x=10, y=5, x+y)

16. SPECIAL OPERATORS
 Sizeof Operator
Sizeof is an operator used to return the number of bytes
the operand occupies. Syntax:
m=sizeof(sum);
k=sizeof(2351);

17. Thanks