C / C++ / MFC

template <int N>
double array_sum(double * var[N], int n, double (*f)(double var[N])) {
  double ret 0.0;
  for (int i = 0; i < n; ++i) {
    ret += f(args);
  }
  return ret;
}

double mul(double var[3]) {
  return var[0] * var[1] * var[2];
}

int main() {
  double * length = new double[10];
  double * width = new double[10];
  double * height = new double[10];
//initialize the data
  array_sum({length, width, height}, 10, mul);
  delete [] length;
  delete [] width;
  delete [] height;
  return 0;
}