/* Test Polyhedron::add_constrains().
   Copyright (C) 2001-2009 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 3 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., 51 Franklin Street, Fifth Floor, 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"

namespace {

bool
test01() {
  Variable A(0);
  Variable B(1);

  C_Polyhedron ph1(2);
  ph1.add_constraint(A - B >= 0);
  ph1.add_constraint(B >= 0);

  NNC_Polyhedron ph2(1);
  ph2.add_constraint(A == 0);

  Constraint_System cs = ph2.constraints();

  print_constraints(ph1, "*** ph1 ***");
  print_constraints(cs, "*** cs ***");

  ph1.add_constraints_and_minimize(cs);

  C_Polyhedron known_result(2);
  known_result.add_constraint(A == 0);
  known_result.add_constraint(B == 0);

  bool ok = (ph1 == known_result);

  print_constraints(ph1, "*** after ph1.add_constraints_and_minimize(cs) ***");

  return ok;
}

bool
test02() {
  Variable A(0);
  Variable B(1);

  NNC_Polyhedron ph1(2);
  ph1.add_constraint(A >= 0);
  ph1.add_constraint(B >= 0);

  Constraint_System cs = ph1.constraints();

  C_Polyhedron ph2(3);
  ph2.add_constraint(A <= 2);

  print_constraints(cs, "*** cs ***");
  print_constraints(ph2, "*** ph2 ***");

  ph2.add_constraints_and_minimize(cs);

  C_Polyhedron known_result(3);
  known_result.add_constraint(A >= 0);
  known_result.add_constraint(A <= 2);
  known_result.add_constraint(B >= 0);

  bool ok = (ph2 == known_result);

  print_constraints(ph2, "*** ph2 ***");

  return ok;
}

} // namespace

BEGIN_MAIN
  DO_TEST(test01);
  DO_TEST(test02);
END_MAIN