cpp-work/archive/20220302_2.cpp

#include <iostream>

using namespace std;

void splitDouble(double x, int &n, double &f) {
    n = (int) x;
    f = x - n;
}

int main() {
    cout << "Enter one double number:\n";

    double x = 0;
    cin >> x;

    int n = 0;
    double f = 0;
    splitDouble(x, n, f);

    cout << "Integer part=" << n << "  Fraction Part=" << f;
}