casting wtf

#include <iostream>

using namespace std;

int main()
{

    int n1;
    float n1_float = ( (float) n1 ); /* riempie la variabile n1_float con il valore di n1 ma convertito in float */

    cin >> n1;
    cout << "n1: " << n1 << endl;
    cout << "n1_float:" << n1_float << endl;

    return 0;

}