- C Arithmetic Operators: An arithmetic operator performs mathematical operations such as addition, subtraction, multiplication, division etc on numerical values (constants and variables).
Operator Meaning of Operator
+ addition or unary plus
- subtraction or unary minus
* multiplication
/ division
% remainder after division (modulo division)
- Increment ++ operator and decrement -- operator to change the value of an operand (constant or variable) by 1.
Operator Meaning of Operator
++ increment
-- decrement
- C Assignment Operators: An assignment operator is used for assigning a value to a variable. The most common assignment operator is =
Operator Example Same as
= y = z y = z
+= y += z y = y+z
-= y -= z y = y-z
*= y *= z y = y*z
/= y /= z y = y/z
%= y %= z y = y%z
- C Relational(conditional) Operators: A relational operator checks the relationship between two operands. If the relation is true, it returns 1; if the relation is false, it returns value 0. Relational operators are used in decision making and loops.
Operator Meaning of Operator Example
== Equal to 14 == 12 is evaluated to 0
> Greater than 14 > 12 is evaluated to 1
< Less than 14 < 12 is evaluated to 0
!= Not equal to 14 != 12 is evaluated to 1
>= Greater than or equal to 14 >= 12 is evaluated to 1
<= Less than or equal to 14 <= 12 is evaluated to 0
- C Logical Operators: An expression containing logical operator returns either 0 or 1 depending upon whether expression results true or false. Logical operators are commonly used in decision making in C programming.
Operator Meaning Example
&& Logical AND. True only if all operands are true If a = 6 and b = 2 then, expression ((a==6) && (b>4)) equals to 0.
|| Logical OR. True only if either one operand is true If a = 6 and b = 2 then, expression ((a==6) || (b>4)) equals to 1.
! Logical NOT. True only if the operand is 0 If a = 6 then,
expression !(a==6) equals to 0.
- C Bitwise Operators: During computation, mathematical operations like: addition, subtraction, multiplication, division, etc are converted to bit-level which makes processing faster and saves power. Bitwise operators are used in C programming to perform bit-level operations.
Operators Meaning of operators
& Bitwise AND
| Bitwise OR
^ Bitwise exclusive OR
~ Bitwise complement
<< Shift left
>> Shift right
- Comma Operator: Comma operators are used to link related expressions together.
For example: variable declaration :- int x, y = 5, z;
- sizeof operator: The sizeof is a unary operator that returns the size of data (constants, variables, array, structure, etc).
- ternary operator ?:,
- reference operator &,
- dereference operator *
- member selection operator ->
