// Copyright (c) 2004  
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel).  All rights reserved. 
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
// 
//
// Author(s)     : various

// Tests if LEDA is available.

#include <iostream>

#ifndef HAVE_LEDA4X
  #include <LEDA/system/basic.h>
  #include <LEDA/numbers/integer.h>
#else
  #include <LEDA/basic.h>
  #include <LEDA/integer.h>
#endif

#if defined(_MSC_VER)
#ifndef LEDA_STD_HEADERS
#  error "LEDA_STD_HEADERS is not defined. Please consult the troubleshooting section of the installation manual."
#endif // ! LEDA_STD_HEADERS
#endif // MSVC

#if defined(LEDA_NAMESPACE)
using namespace leda;
#endif

#ifndef HAVE_LEDA4X
 #include <LEDA/internal/REDEFINE_NAMES.h>
 typedef integer I;
 #include <LEDA/internal/UNDEFINE_NAMES.h>
#else
 #include <LEDA/REDEFINE_NAMES.h>
 typedef integer I;
 #include <LEDA/UNDEFINE_NAMES.h>
#endif

int main()
{
  I a(123456); 
  I b(456789);

  if (a + b != I(580245))
    return 1;
  if (a - b != I(-333333))
    return 1;

  std::cout << "version=" << __LEDA__ << std::endl;

  return 0;
}