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C++ program for unary minus (-) operator overloading

mahmoud2506
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2022-05-05
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C++ program for unary minus (-) operator overloading

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mahmoud2506
2022-05-05
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Unary minus (-) operator overloading program in c++

/*C++ program for unary minus (-) operator overloading.*/

#include<iostream>
using namespace std;
 
class NUM
{
    private:
        int n;
         
    public:
        //function to get number
        void getNum(int x)
        {
            n=x;
        }
        //function to display number
        void dispNum(void)
        {
            cout << "value of n is: " << n;
        }
        //unary - operator overloading
        void operator - (void)
        {
            n=-n;
        }
};

int main()
{
    NUM num;
    num.getNum(10);
    -num;
    num.dispNum();
    cout << endl;
    return 0;
     
}

Output

 
    value of n is: -10

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