c 2b 2b round to int

1#include <iostream>
2#include <cmath>
3
4using namespace std;
5
6int main()
7{
8    int x = 15;
9    double result;
10    result = round(x);
11    cout << "round(" << x << ") = " << result << endl;
12
13    return 0;
14}
15

1 cout << "Nearest value of x :" << round(x) << "\n"; 

1double round(double x);
2float round(float x);
3long double round(long double x);
4double round(T x); // For integral type
5