Operator in C:-

Operator in C :- 1) Precedence and associativity of an operator only implemented if it is represented in INFIX notation.

Precedence decides which operation will be performed first.

Associativity decides the order of evaluation ( left to right or right to left) if more than one operator enjoy the same precedence.

The operator which requires three operands that are called ternary operator.

? : is a conditional ternary operator.

Associativity of a comma ( , ) operator is left to right.

# is a string forming operator that convert a non-string data to  string and used only in preprocessor directives.

There is no operator in C to calculate the rise of a number.

Bitwise operators only work in integral type but do not work in float type.

Return value of relational and logical operators is 0 or 1.

x++, Here Microprocessor does both read and write operation.

 

1^st highest precedence:-

()

[]                                                Left to Right

.

->

2nd highest precedence:-

++

—

!                                                  Right to Left

*

Size of()

Type

3rd highest precedence:-

*

/                                                Left to Right

%

4th highest precedence:-

+

–                                                Left to Right

5th highest precedence:-

>>

<<                                                Left to Right

6th highest precedence:-

>

<

>=                                                Left to Right

<=

7th highest precedence:-

==

!=                                                Left to Right

8^th highest precedence:-

Bitwise  &

9^th highest precedence:-

^                                                Left to Right

10^th highest precedence:-

|                                                Left to Right

11^th highest precedence:-

||                                                Left to Right

12^th highest precedence:-

&& (Logical AND)                  Left to Right

13^th highest precedence:-

? (conditional)                         Right to Left

14^th highest precedence:-

+=

-=

/=

*=

>>=                                             Right to Left

<<=

&=

^=

|=

=

15^th highest precedence:-

,                                                     Left to Right

 

It has no precedence and n

# string forming

## merging

 

Type of Operator	Symbolic representation
Arithmetic operators	+, -, *, /, %
Relational operators	>, <, ==, >=, <=, !=
Logical operators	&&, ||, !=
Increment and decrement operator	++ and —
Assignment operator	=
Bitwise operator	&, |, ^, >>, <<, ~
Comma operator	,
Conditional operator	?:

 

 

Example:-

SLNO	Questions	Output
1	main() { int x; int a=5; x= 30 || –a; printf(“%d”,a); }	5
2	main() { int a=5,b=5,c=5; if(a==b==c) printf(“delhi  challo”); else printf(“do or die”); }	do or die
3	main() { int a=8,x; x=++a + ++a + ++a; printf(“%d %d”,x,a); }	31    11
4	main() { int k=1==8>3; printf(“%d”,k); }	1
5	main() { int i=-1, j=-1, k=0,  l=2, m; m = i++ && j++ && k++ || l++; printf(“%d%d%d%d%d”,i, j, k, l, m); }	0 0 1 3 1
6	int main() { int x = 10, y = 20; if(!(!x) && x) printf(“x = %d\n”, x); else printf(“y = %d\n”, y); return 0; }	X=10
7	main() { int y,x=10; y = x++ <<2 <=5; printf(“%d”,y); }	0
8	main() { int x[5]={1,2,3,4,5}; int i=1; int k=5*x[–i] + 5*9+(8/i); printf(“%d”,k); }	Divide by zero (floating point exception)

 

Also Read:- What is C

Also Read:- Datatype in C