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/* Test Grid::is_disjoint_from().
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
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"
using namespace Parma_Polyhedra_Library::IO_Operators;
namespace {
// Grid of points and empty grid.
bool
test01() {
Variable A(0);
Grid_Generator_System gs;
gs.insert(grid_point(A));
Grid gr1(gs);
Grid gr2(1, EMPTY);
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// Empty grid and grid of points.
bool
test02() {
Variable B(1);
Grid gr1(2, EMPTY);
Grid_Generator_System gs;
gs.insert(grid_point());
gs.insert(grid_point(B));
Grid gr2(gs);
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// Both empty.
bool
test03() {
Grid gr1(4, EMPTY);
Grid gr2(4, EMPTY);
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// Zero dimension universes.
bool
test04() {
Grid gr1(0);
Grid gr2(0);
bool ok = (!gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// Grid and itself.
bool
test05() {
Variable A(0);
Variable B(1);
Variable C(2);
Grid gr(3);
gr.add_congruence(A - B %= 0);
gr.add_congruence(C %= 0);
bool ok = (!gr.is_disjoint_from(gr));
print_congruences(gr, "*** gr ***");
return ok;
}
// Two grids which alternate AB planes along C.
bool
test06() {
Variable A(0);
Variable B(1);
Variable C(2);
Grid gr1(3);
gr1.add_congruence(A - B %= 0);
gr1.add_congruence((C %= 0) / 2);
Grid gr2(3, EMPTY);
gr2.add_grid_generator(grid_point(C));
gr2.add_grid_generator(grid_line(A + B));
gr2.add_grid_generator(grid_point(C + B));
gr2.add_grid_generator(grid_point(3*C));
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// A sequence of points and a plane.
bool
test07() {
Variable A(0);
Variable B(1);
Variable C(2);
Grid gr1(3, EMPTY);
gr1.add_grid_generator(grid_point(A + B + C));
gr1.add_grid_generator(grid_point(3*A + 3*B + 3*C));
Grid gr2(3);
gr2.add_congruence(A - B %= 0);
gr2.add_constraint(C == 0);
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// A line and a plane.
bool
test08() {
Variable A(0);
Variable B(1);
Variable C(2);
Grid gr1(3, EMPTY);
gr1.add_grid_generator(grid_point(A + B + C));
gr1.add_grid_generator(grid_line(3*A + 3*B + 3*C));
Grid gr2(3);
gr2.add_congruence(A - B %= 0);
gr2.add_constraint(C == 0);
bool ok = (!gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
// CHINA contains example that showed an error in cgs::is_included_in.
bool
test09() {
Variable A(0);
Grid gr1(1, EMPTY);
gr1.add_grid_generator(grid_point());
gr1.minimized_grid_generators();
Grid gr2(1, EMPTY);
gr2.add_grid_generator(grid_point(A));
gr2.minimized_grid_generators();
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr2, "*** gr2 ***");
print_congruences(gr1, "*** gr1.is_disjoint_from(gr2) ***");
return ok;
}
// Space dimension exception.
bool
test10() {
Grid gr1(1, EMPTY);
gr1.add_grid_generator(grid_point());
Grid gr2(19, EMPTY);
try {
gr1.is_disjoint_from(gr2);
}
catch (const std::invalid_argument& e) {
nout << "invalid_argument: " << e.what() << endl;
return true;
}
catch (...) {
}
return false;
}
// Both empty and both not in minimal form.
bool
test11() {
Variable A(0);
Grid gr1(1);
gr1.add_congruence((A %= 1) / 2);
gr1.add_congruence((A %= 0) / 2);
Grid gr2(1);
gr2.add_congruence((A %= 1) / 2);
gr2.add_congruence((A %= 0) / 2);
bool ok = (gr1.is_disjoint_from(gr2));
print_congruences(gr1, "*** gr1 ***");
print_congruences(gr2, "*** gr2 ***");
return ok;
}
} // namespace
BEGIN_MAIN
DO_TEST(test01);
DO_TEST(test02);
DO_TEST(test03);
DO_TEST(test04);
DO_TEST(test05);
DO_TEST(test06);
DO_TEST(test07);
DO_TEST(test08);
DO_TEST(test09);
DO_TEST(test10);
DO_TEST(test11);
END_MAIN
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