NAG Library Manual, Mark 28.5
Interfaces:  FL   CL   CPP   AD 

NAG AD Library Introduction
Example description
/* G01GC_P0W_F C++ Header Example Program.
 *
 * Copyright 2022 Numerical Algorithms Group.
 * Mark 28.5, 2022.
 */

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

int main()
{
  int exit_status = 0;

  cout << "G01GC_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;

  cout << "    x       df      rlamda     p" << endl;
  cout.setf(ios::scientific, ios::floatfield);
  cout.setf(ios::right);
  cout.precision(2);

  double  tol   = 0.0;
  Integer maxit = 100;

  double            x, df, rlamda, p;
  Integer           ifail = -1;
  nag::ad::handle_t ad_handle;

  for (Integer i = 0; i < n; ++i)
  {
    cin >> x >> df >> rlamda;

    // Call NAG AD Routine
    ifail = 0;
    nag::ad::g01gc(ad_handle, x, df, rlamda, tol, maxit, p, ifail);

    // Output results
    cout.width(9);
    cout << x;
    cout.width(9);
    cout << df;
    cout.width(9);
    cout << rlamda;
    cout.width(9);
    cout << p << endl;
  }

  return exit_status;
}