Use static_cast.
#include <iostream>
using namespace std;
int main()
{
int i;
for(i=0; i<10; i++)
cout << static_cast<double> (i) / 3 << " ";
return 0;
}0 0.333333 0.666667 1 1.33333 1.66667 2 2.33333 2.66667 3 "
Using static_cast: base and derived class
#include <iostream>
#include <ostream>
class base {};
class derived : public base {};
class other : public base {};
int main()
{
base* b = new derived;
static_cast<derived&>(*b);
static_cast<other*>(b);
derived* d = new derived;
b = d;
b = static_cast<base*>(d);
}Using static_cast: for enum data type
#include <iostream>
#include <ostream>
enum color { red, black };
int main()
{
color c = static_cast<color>(red);
}