/* G01EC_P0W_F C++ Header Example Program.
 *
 * Copyright 2023 Numerical Algorithms Group.
 * Mark 29.2, 2023.
 */

#include <dco.hpp>
#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, df, p;

  cout << "G01EC_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 = 0;
  nag::ad::handle_t ad_handle;

  cout << "       x           df          p\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 and df
    cin >> x >> df;

    // Call NAG AD Routine
    ifail = 0;
    nag::ad::g01ec(ad_handle, "L", x, df, p, ifail);

    cout.width(12);
    cout << x;
    cout.width(12);
    cout << df;
    cout.width(12);
    cout << p << endl;
  }

  return exit_status;
}