/* Use of the functions affine_image and affine_preimage.
   Copyright (C) 2001-2004 Roberto Bagnara <bagnara@cs.unipr.it>

This file is part of the Parma Polyhedra Library (PPL).

The PPL is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.

The PPL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.

For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */

#include "ppl_test.hh"

using namespace std;
using namespace Parma_Polyhedra_Library;

#ifndef NOISY
#define NOISY 0
#endif

int
main() TRY {
  set_handlers();

  Variable x(0);
  Variable y(1);
  GenSys gs;
  gs.insert(point(0*x + 0*y));
  gs.insert(point(0*x + 3*y));
  gs.insert(point(3*x + 0*y));
  gs.insert(point(3*x + 3*y));
  C_Polyhedron ph(gs);
  LinExpression coeff = x + 4;

  C_Polyhedron p1(ph);
#if NOISY
  print_generators(p1, "*** p1 ***");
#endif
  p1.affine_image(x, coeff);

  C_Polyhedron p2(ph);
#if NOISY
  print_generators(p2, "*** p2 ***");
#endif
  p2.affine_preimage(x, coeff);

  GenSys gs1_known_result;
  gs1_known_result.insert(point(4*x + 0*y));
  gs1_known_result.insert(point(4*x + 3*y));
  gs1_known_result.insert(point(7*x + 0*y));
  gs1_known_result.insert(point(7*x + 3*y));
  C_Polyhedron p1_known_result(gs1_known_result);

  GenSys gs2_known_result;
  gs2_known_result.insert(point(-4*x + 0*y));
  gs2_known_result.insert(point(-4*x + 3*y));
  gs2_known_result.insert(point(-1*x + 0*y));
  gs2_known_result.insert(point(-1*x + 3*y));
  C_Polyhedron p2_known_result(gs2_known_result);

  int retval = ((p1 == p1_known_result) && (p2 == p2_known_result)) ? 0 : 1;

#if NOISY
  print_generators(p1 ,"*** p1 ***");
  print_generators(p1_known_result, "*** p1_known_result ***");
  print_generators(p2 ,"*** p2 ***");
  print_generators(p2_known_result, "*** p2_known_result ***");
#endif

  return retval;
}
CATCH