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

using namespace std;

# include "asa299.hpp"

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

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

int main ( )

//****************************************************************************80
//
//  Purpose:
//
//    asa299_test() tests asa299().
//
//  Licensing:
//
//    This code is distributed under the MIT license. 
//
//  Modified:
//
//    10 January 2007
//
//  Author:
//
//    John Burkardt
//
{
  timestamp ( );
  cout << "\n";
  cout << "asa299_test():\n";
  cout << "  C++ version\n";
  cout << "  Test asa299().\n";

  test01 ( );
//
//  Terminate.
//
  cout << "\n";
  cout << "asa299_test():\n";
  cout << "  Normal end of execution.\n";
  cout << "\n";
  timestamp ( );

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

void test01 ( )

//****************************************************************************80
//
//  Purpose:
//
//    test01() tests simplex_lattice_point_next().
//
//  Licensing:
//
//    This code is distributed under the MIT license. 
//
//  Modified:
//
//    10 January 2007
//
//  Author:
//
//    John Burkardt
//
{
# define N 4

  int i;
  int j;
  bool more;
  int t = 4;
  int x[N];

  cout << "\n";
  cout << "test01():\n";
  cout << "  simplex_lattice_point_next() generates lattice points\n";
  cout << "  in the simplex\n";
  cout << "    0 <= X\n";
  cout << "    sum ( X(1:N) ) <= T\n";
  cout << "  Here N = " << N << "\n";
  cout << "  and T =  " << t << "\n";
  cout << "\n";
  cout << "     Index        X(1)      X(2)      X(3)      X(4)\n";
  cout << "\n";

  more = false;

  i = 0;

  for ( ; ; )
  {
    simplex_lattice_point_next ( N, t, &more, x );

    i = i + 1;

    cout << "  " << setw(8) << i;
    cout << "  ";
    for ( j = 0; j < N; j++ )
    {
      cout << "  " << setw(8) << x[j];
    }
    cout << "\n";

    if ( !more )
    {
      break;
    }

  }
 
  return;
# undef N
}
//****************************************************************************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
}