Calculer la puissance d'un nombre. C++

#calculer #cpp

Calculer la puissance manuellement

C++

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#include <iostream>
using namespace std;
​
int main() 
{
    int exponent;
    float base, result = 1;
​
    cout << "Enter base and exponent respectively:  ";
    cin >> base >> exponent;
​
    cout << base << "^" << exponent << " = ";
​
    while (exponent != 0) {
        result *= base;
        --exponent;
    }
​
    cout << result;
    
    return 0;
}

Output result

Enter base and exponent respectively:  3.4
5
3.4^5 = 454.354

Prefix Increment ++ surcharge de l'opérateur avec le type de retour

C++

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#include <iostream>
using namespace std;
​
class Check
{
  private:
    int i;
  public:
    Check(): i(0) {  }
​
    // Return type is Check
    Check operator ++()
    {
       Check temp;
       ++i;
       temp.i = i;
​
       return temp;
    }
​
    void Display()
    { cout << "i = " << i << endl; }
};
​
int main()
{
    Check obj, obj1;
    obj.Display();
    obj1.Display();
​
    obj1 = ++obj;
​
    obj.Display();
    obj1.Display();
​
    return 0;
}

Output result

i = 0
i = 0
i = 1
i = 1

C++

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Calculer la puissance d'un nombre. C++

C++

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