An operation with only one operand (a single input). Common unary operators include + plus, - minus, and bitwise not. Some operators can function as both unary and binary operators. For example, + and - operators can serve as either.
Languages Focus: Unary Operators
What unary operators are supported in additoin to the standard plus, minus, and bitwise not.
C# Unary Operators
An operation with only one operand (a single input). The following are the C# unary operators: +, -, !, ~, ++, --, true, or false.