Write a code and do unary operators - overload

 

The unary operatpr need only one operand.To overload + or - we need only one object.

	//uniary operator overloading
	#include<iostream>
	using namespace std;
	class Negative
	{
	private:
	int num;
	public:
	Negative(){}
	Negative(int n)//Constructor
	{
	num=n;
	}
	void GetNum(int x)
	{
	num=x;
	}
	void print(){
	cout<<"Number is "<<num<<endl;
	}
	void operator -();//Operator overload
	};
	void Negative :: operator-()// operator overload definition
	{
	num=-num;
	}
	int main()
	{
	Negative n1,n2;
	n1.GetNum(5);
	n1.print();
	-n1;
	n1.print();
	return 0;
	}

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Number is 5
Number is -5