Bitwise Operators:
Bitwise operator works on bits and perform bit by bit operation.
Assume if B = 60; and B = 13; Now in binary format they will be as follows:
A = 0011 1100
B = 0000 1101

A&B = 0000 1000
AB = 0011 1101
A^B = 0011 0001
~A = 1100 0011
Show Examples
There are following Bitwise operators supported by C language
Operator 
Description 
Example 
& 
Binary AND Operator copies a
bit to the result if it exists in both operands. 
(A & B) will give 12 which
is 0000 1100 
 
Binary OR Operator copies a
bit if it exists in either operand. 
(A  B) will give 61 which
is 0011 1101 
^ 
Binary XOR Operator copies
the bit if it is set in one operand but not both. 
(A ^ B) will give 49 which
is 0011 0001 
~ 
Binary Ones Complement
Operator is unary and has the effect of 'flipping' bits. 
(~A ) will give 60 which is
1100 0011 
<< 
Binary Left Shift Operator.
The left operands value is moved left by the number of bits specified by
the right operand. 
A << 2 will give 240 which
is 1111 0000 
>> 
Binary Right Shift Operator.
The left operands value is moved right by the number of bits specified
by the right operand. 
A >> 2 will give 15 which is
0000 1111 
Assignment Operators:
There are following assignment operators supported by C language:
Show Examples
Operator 
Description 
Example 
= 
Simple assignment operator,
Assigns values from right side operands to left side operand 
C = A + B will assign value
of A + B into C 
+= 
Add AND assignment operator,
It adds right operand to the left operand and assign the result to left
operand 
C += A is equivalent to C =
C + A 
= 
Subtract AND assignment
operator, It subtracts right operand from the left operand and assign
the result to left operand 
C = A is equivalent to C =
C  A 
*= 
Multiply AND assignment
operator, It multiplies right operand with the left operand and assign
the result to left operand 
C *= A is equivalent to C =
C * A 
/= 
Divide AND assignment
operator, It divides left operand with the right operand and assign the
result to left operand 
C /= A is equivalent to C =
C / A 
%= 
Modulus AND assignment
operator, It takes modulus using two operands and assign the result to
left operand 
C %= A is equivalent to C =
C % A 
<<= 
Left shift AND assignment
operator 
C <<= 2 is same as C = C <<
2 
>>= 
Right shift AND assignment
operator 
C >>= 2 is same as C = C >>
2 
&= 
Bitwise AND assignment
operator 
C &= 2 is same as C = C & 2 
^= 
bitwise exclusive OR and
assignment operator 
C ^= 2 is same as C = C ^ 2 
= 
bitwise inclusive OR and
assignment operator 
C = 2 is same as C = C  2 
Short Notes on LVALUE and
RVALUE:
x = 1; takes the value on the right (e.g. 1) and puts it in the memory
referenced by x. Here x and 1 are known as LVALUES and RVALUES respectively
Lvalues can be on either side of the assignment operator where as Rvalues only
appear on the right.
So x is an Lvalue because it can appear on the left as we've just seen, or on
the right like this: y = x; However, constants like 1 are Rvalues because 1
could appear on the right, but 1 = x; is invalid.
Misc Operators
There are few other operators supported by C Language.
Show Examples
Operator 
Description 
Example 
sizeof() 
Returns the size of an
variable. 
sizeof(a), where a is
integer, will return 4. 
& 
Returns the address of an
variable. 
&a; will give actual address
of the variable. 
* 
Pointer to a variable. 
*a; will pointer to a
variable 
? : 
Conditional Expression 
If Condition is true ? Then
value X : Otherwise value Y 
Operators Categories:
All the operators we have discussed above can be categorized into following
categories:

Postfix operators, which follow a single operand.

Unary prefix operators, which precede a single operand.

Binary operators, which take two operands and perform a
variety of arithmetic and logical operations.

The conditional operator (a ternary operator), which
takes three operands and evaluates either the second or third expression,
depending on the evaluation of the first expression.

Assignment operators, which assign a value to a variable.

The comma operator, which guarantees lefttoright
evaluation of commaseparated expressions.
Precedence of C Operators:
Operator precedence determines the grouping of terms in an expression.
This affects how an expression is evaluated. Certain operators have higher
precedence than others; for example, the multiplication operator has higher
precedence than the addition operator:
For example x = 7 + 3 * 2; Here x is assigned 13, not 20 because operator * has
higher precedence than + so it first get multiplied with 3*2 and then adds into
7.
Here operators with the highest precedence appear at the top of the table, those
with the lowest appear at the bottom. Within an expression, higher precedence
operators will be evaluated first.
Category 
Operator 
Associativity 
Postfix 
() [] > . ++  

Left to right 
Unary 
+  ! ~ ++   (type) * &
sizeof 
Right to left 
Multiplicative 
* / % 
Left to right 
Additive 
+  
Left to right 
Shift 
<< >> 
Left to right 
Relational 
< <= > >= 
Left to right 
Equality 
== != 
Left to right 
Bitwise AND 
& 
Left to right 
Bitwise XOR 
^ 
Left to right 
Bitwise OR 
 
Left to right 
Logical AND 
&& 
Left to right 
Logical OR 
 
Left to right 
Conditional 
?: 
Right to left 
Assignment 
= += = *= /= %= >>= <<= &=
^= = 
Right to left 
Comma 
, 
Left to right 
NEXT >> Control Statements
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