Unary operator overloading in C#.NET — which unary operators among the list are overloadable?

Question

Solve this multiple-choice question and choose the correct option.

Accepted Answer

Introduction / Context:C# permits overloading many unary operators to customize semantics for user-defined types. Given Data / Assumptions: Operators under consideration: true, false, +, new, is. Concept / Approach:Overloadable unary operators include +, -, !, ~, ++, --, true, and false. Keywords new and is are not overloadable operators. Step-by-Step Solution: 1) true/false: overloadable to support custom truthiness on types.2) unary +: overloadable; often paired with binary + overloads.3) new: not an operator you can overload.4) is: not overloadable. Verification / Alternative check:Compile a struct with public static bool operator true(...) and public static bool operator false(...). Why Other Options Are Wrong:B and D include non-overloadable keywords; C is incomplete. Common Pitfalls:Confusing language keywords with overloadable operators. Final Answer:true, false, and unary + can be overloaded.

Unary operator overloading in C#.NET — which unary operators among the list are overloadable?

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