# include <cstdlib>
# include <iostream>
# include <iomanip>
# include <cmath>
# include <ctime>

using namespace std;

# include "asa066.hpp"

int main ( );
void test01 ( );
void test02 ( );
void test03 ( );
void timestamp ( );

//****************************************************************************80

int main ( )

//****************************************************************************80
//
//  Purpose:
//
//    asa066_test() tests asa066().
//
//  Licensing:
//
//    This code is distributed under the MIT license.
//
//  Modified:
//
//    16 January 2008
//
//  Author:
//
//    John Burkardt
//
{
  timestamp ( );
  cout << "\n";
  cout << "asa066_test():\n";
  cout << "  C++ version\n";
  cout << "  Test asa066().\n";

  test01 ( );
  test02 ( );
  test03 ( );
//
//  Terminate.
//
  cout << "\n";
  cout << "asa066_test():\n";
  cout << "  Normal end of execution.\n";
  cout << "\n";
  timestamp ( );

  return 0;
}
//****************************************************************************80

void test01 ( )

//****************************************************************************80
//
//  Purpose:
//
//    test01() tests alnorm().
//
//  Licensing:
//
//    This code is distributed under the MIT license.
//
//  Modified:
//
//    16 January 2008
//
//  Author:
//
//    John Burkardt
//
{
  double fx;
  double fx2;
  int n_data;
  bool upper = false;
  double x;

  cout << "\n";
  cout << "test01():\n";
  cout << "  Compare tabulated values of the normal\n";
  cout << "  Cumulative Density Function against values\n";
  cout << "  computed by alnorm().\n";
  cout << "\n";
  cout << "         X        CDF                       CDF"
       << "                    DIFF\n";
  cout << "               (tabulated)                 (ALNORM)\n";
  cout << "\n";

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    fx2 = alnorm ( x, upper );

    cout << "  " << setprecision(4)  << setw(10) << x
         << "  " << setprecision(16) << setw(24) << fx
         << "  " << setprecision(16) << setw(24) << fx2
         << "  " << setprecision(4)  << setw(10) << fabs ( fx - fx2 ) << "\n";
  }

  return;
}
//****************************************************************************80

void test02 ( )

//****************************************************************************80
//
//  Purpose:
//
//    test02() tests normp().
//
//  Licensing:
//
//    This code is distributed under the MIT license.
//
//  Modified:
//
//    16 January 2008
//
//  Author:
//
//    John Burkardt
//
{
  double fx;
  double fx2;
  int n_data;
  double p;
  double pdf;
  double q;
  double x;

  cout << "\n";
  cout << "test02():\n";
  cout << "  Compare tabulated values of the normal\n";
  cout << "  Cumulative Density Function against values\n";
  cout << "  computed by normp().\n";
  cout << "\n";
  cout << "         X        CDF                       CDF"
       << "                    DIFF\n";
  cout << "               (tabulated)                 (NORMP)\n";
  cout << "\n";

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    normp ( x, &p, &q, &pdf );
    fx2 = p;

    cout << "  " << setprecision(4)  << setw(10) << x
         << "  " << setprecision(16) << setw(24) << fx
         << "  " << setprecision(16) << setw(24) << fx2
         << "  " << setprecision(4)  << setw(10) << fabs ( fx - fx2 ) << "\n";
  }

  return;
}
//****************************************************************************80

void test03 ( )

//****************************************************************************80
//
//  Purpose:
//
//    test03() tests nprob().
//
//  Licensing:
//
//    This code is distributed under the MIT license.
//
//  Modified:
//
//    16 January 2008
//
//  Author:
//
//    John Burkardt
//
{
  double fx;
  double fx2;
  int n_data;
  double p;
  double pdf;
  double q;
  double x;

  cout << "\n";
  cout << "test03():\n";
  cout << "  Compare tabulated values of the normal\n";
  cout << "  Cumulative Density Function against values\n";
  cout << "  computed by nprob().\n";
  cout << "\n";
  cout << "         X        CDF                       CDF"
       << "                    DIFF\n";
  cout << "               (tabulated)                 (NPROB)\n";
  cout << "\n";

  n_data = 0;

  for ( ; ; )
  {
    normal_01_cdf_values ( &n_data, &x, &fx );

    if ( n_data == 0 )
    {
      break;
    }

    nprob ( x, &p, &q, &pdf );
    fx2 = p;

    cout << "  " << setprecision(4)  << setw(10) << x
         << "  " << setprecision(16) << setw(24) << fx
         << "  " << setprecision(16) << setw(24) << fx2
         << "  " << setprecision(4)  << setw(10) << fabs ( fx - fx2 ) << "\n";
  }

  return;
}
//****************************************************************************80

void timestamp ( )

//****************************************************************************80
//
//  Purpose:
//
//    timestamp() prints the current YMDHMS date as a time stamp.
//
//  Example:
//
//    31 May 2001 09:45:54 AM
//
//  Licensing:
//
//    This code is distributed under the MIT license. 
//
//  Modified:
//
//    24 September 2003
//
//  Author:
//
//    John Burkardt
//
{
# define TIME_SIZE 40

  static char time_buffer[TIME_SIZE];
  const struct tm *tm;
  time_t now;

  now = time ( NULL );
  tm = localtime ( &now );

  strftime ( time_buffer, TIME_SIZE, "%d %B %Y %I:%M:%S %p", tm );

  cout << time_buffer << "\n";

  return;
# undef TIME_SIZE
}