Проверьте прогу - C++

#include <iostream.h>
#include <math.h>
using namespace std;
 
int main()
{
  int n = 0;
  double e = 0.001;
  double sum = 0.0, current = 0.0;
  do
  {
     n++;
     current = pow(-1.0, static_cast<double>(n-1)) / pow(static_cast<double>(n), static_cast<double>(n));
     sum += current;
  }while(fabs(current) > e);
  cout << "sum = " << sum << endl;
  return 0;
}