unary operator in c language

A unary operator in C language is an operator that takes only one operand or argument. It performs various operations such as incrementing/decrementing a value, negating an expression, or complementing a value.

Here are some examples of unary operators in C:

1. Increment and Decrement Operators: ++ and --

   • ++: This operator is used to increment the value of a variable by 1.
   • --: This operator is used to decrement the value of a variable by 1.

2. Unary Minus Operator: -

   • It is used to change the sign of the operand.

3. Unary Plus Operator: +

   • It doesn't really affect the value of the operand.

4. Bitwise Not Operator: ~

   • It is a unary operator that flips the bits of a binary number.

5. Logical Not Operator: !

   • It is used to reverse the logical state of its operand. If a condition is true, then the Logical NOT operator will make it false.

6. Address Of Operator: &

   • It is used to get the address of a variable.

7. Indirection Operator (dereference operator): *

   • It is used to get the value located at a certain address.

8. Sizeof Operator: sizeof

   • It is used to get the size of a variable or datatype.

9. One's Complement Operator: ~

   • It is used to get the one's complement of a binary number.

Each of these operators is used with a single operand or variable, hence the name "unary operator".