/* S01BA_P0W_F C++ Header Example Program.
 *
 * Copyright 2023 Numerical Algorithms Group.
 * Mark 29.0, 2023.
 */

#include <iostream>
#include <nag.h>
#include <nagad.h>
#include <stdio.h>
#include <string>
using namespace std;

int main()
{
  int exit_status = 0;

  // Input and output variables
  double x, y;

  cout << "S01BA_P0W_F C++ Header Example Program Results\n\n";
  // Skip heading in data file
  string mystr;
  getline(cin, mystr);

  // Read number of x values
  Integer n;
  cin >> n;

  Integer           ifail = -1;
  nag::ad::handle_t ad_handle;

  cout << "       x       y=ln(1+x)\n";
  cout.setf(ios::scientific, ios::floatfield);
  cout.setf(ios::right);
  cout.precision(4);

  // Loop over x values
  for (Integer i = 0; i < n; ++i)
  {
    // Read next x
    cin >> x;

    // Call NAG AD Routine
    ifail = -1;
    nag::ad::s01ba(ad_handle, x, y, ifail);
    if (ifail != 0)
    {
      exit_status = 2;
      goto END;
    }

    cout.width(12);
    cout << x;
    cout.width(12);
    cout << y << endl;
  }

END:
  return exit_status;
}