Expressions

Which of the following are unary operators in C?

1. !

2. sizeof

3. ~

4. &&

A 1, 2

B 1,3

C 2,4

D 1,2,4

ANS:D - 1,2,4

An operation with only one operand is called unary operation.
Unary operators:
! Logical NOT operator.
~ bitwise NOT operator.
sizeof Size-of operator. && Logical AND is a logical operator. Therefore, 1, 2, 3 are unary operators.

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