/* G01EC_P0W_F C++ Header Example Program.
 *
 * Copyright 2020 Numerical Algorithms Group.
 * Mark 27.1, 2020.
 */

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

int main(void)
{
  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;
  void    *ad_handle = 0;

  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;
    g01ec_p0w_f_(ad_handle,"L",x,df,p,ifail,1);
    
    cout.width(12);  cout << x;
    cout.width(12);  cout << df;
    cout.width(12);  cout << p << endl;
  }

  return exit_status;
}