Operators:
An operator is a special character that is used for operations. ‘C’
language provides different types of Operators as follows.
-> Assignment
operators
-> Arithmetic
operators
->Logical
operators
->Relational
operators
-->Increment/Decrement
Operators
->Bitwise
operators
Assignment
operators
An assignment operator is used to
store the value of a constant, variable or an expression in to another variable
i.e a variable on the left hand side of an operator.
The general
assignment operator is equal to (=).
In addition to equal
to we have some other assignment operators (updation operators) as follows: +=,
--=, *=, /=, %=, ..etc.
Eg : x = 5; à value assigned
x = y; à variable based assigned
x = x+3; à expression based assigned.
Arithmetic
Operators
These operators are
used to evaluate arithmetic expressions.
‘C’ language
provides five arithmetic operators:
+
(addition)
-
(substraction)
/ (division)
% (modulus)
* (multiplication)
Logical
Operators
These operators are used to combine two or more conditions.
“C” language
provides 3 logical operations.
Logical AND &&
Logical OR ││
Logical NOT
!
Relational
operators:
These
operators are used to compare two values. They are ==,<=,>=, !=,<,>.
Eg: a=2; (2 is
stored in a )
A==2 (comparing value of ‘2’ and ‘A’)
Increment/
Decrement Operators:
These
variable are used to increment or decrement the value of a variable. Two types
of increment and decrement operators available.
They are i) prefix operators
ii) Postfix Operators
In case of prefix operators assignment is done by after
completion of operation.
In case of postfix operators assignment is done before the
operation.
++ (prefix/postfix
increment)
--(prefix/postfix decrement)
Eg: a=40 b=a++
a=41 b=41
value of a, b is 41.
prefix increment (++a)
postfix increment
(a++)
prefix
decrement(- -a)
postfix
decrement (a- -)
Bitwise Logical Operators
These operators are used to work with bits of a number.
The following are the bitwise operators:
& -- Bitwise AND
| -- Bitwise OR
^ -- Bitwise XOR
~ -- Bitwise NOT
BITWISE
SHIFT OPERATORS
Bitwise Left
Shift ( << )
Bitwise Right
Shift ( >> )
(positive values)
Bitwise Right
Shift ( >> )
(negative values)
