Is there any operator in c that is both unary and binary?

Question

Is there any operator in c that is both unary and binary? This question was asked in an interview.

Answer 1

An asterisk (*) can be used for dereference (unary) or multiplication (binary).

Ampersand (&) can be used to bind (unary) or bitwise AND (binary).

The plus / minus signs (+/-) can be used to identify / negate (unary) or add / subtract (binary).

But, as others have pointed out, these are characters shared by different operators. Each of these operators has only one n-arity.

Answer 2

, . , , .

:

• *
• -
• +
• & ""

* - , , , .

Answer 3

, . , C ( ):

.: - Unary: - {.meber1 = x, .member3 = z} (C99 ). : .

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C , .
, +, -, * &, , :

• +, - Unary: i = -1 j = +1. : i = i+1, j = j+1
• *Unary: dereference operator. Binary: multiplication operator.
• &Unary operator: Reference. Binary: bitwise operator AND.