Operator in C Programming language

An operator in C programming is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators −

• Arithmetic Operators
• Relational Operators
• Logical Operators
• Bitwise Operators
• Assignment Operators

Arithmetic Operators

OperatorDescriptionExample
+Adds two operandsA + B will give 30
Subtracts second operand from the firstA – B will give -10
*Multiplies both operandsA * B will give 200
/Divides numerator by de-numeratorB / A will give 2
%Modulus Operator and remainder of after an integer divisionB % A will give 0
++Increment operator, increases integer value by oneA++ will give 11
Decrement operator, decreases integer value by oneA– will give 9

Relational Operators

OperatorDescriptionExample
==Checks if the values of two operands are equal or not, if yes then condition becomes true.(A == B) is not true.
!=Checks if the values of two operands are equal or not, if values are not equal then condition becomes true.(A != B) is true.
Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true.(A > B) is not true.
Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true.(A < B) is true.
>=Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true.(A >= B) is not true.
<=Checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true.(A <= B) is true.

Logical Operators

OperatorDescriptionExample
&&Called Logical AND operator. If both the operands are non-zero, then condition becomes true.(A && B) is false.
||Called Logical OR Operator. If any of the two operands is non-zero, then condition becomes true.(A || B) is true.
!Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true, then Logical NOT operator will make false.!(A && B) is true.

Assignment Operators

OperatorDescriptionExample
=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