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/* Test BD_Shape::is_disjoint_from(const BD_Shape& y).
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"
namespace {
bool
test01() {
Variable A(0);
Variable B(1);
TBD_Shape bds1(2);
bds1.add_constraint(B == 0);
bds1.add_constraint(A >= 1);
bds1.add_constraint(A <= 2);
TBD_Shape bds2(2);
bds2.add_constraint(A == 0);
bds2.add_constraint(B >= 1);
bds2.add_constraint(B <= 2);
bool ok = bds1.is_disjoint_from(bds2);
print_constraints(bds1, "*** bds1 ***");
print_constraints(bds2, "*** bds2 ***");
return ok;
}
bool
test02() {
Variable A(0);
Variable B(1);
TBD_Shape bds1(3);
TBD_Shape bds2(3);
bds2.add_constraint(A <= 3);
bds2.add_constraint(B - A <= -1);
bds2.add_constraint(B >= -5);
bool disjoint = bds1.is_disjoint_from(bds2);
print_constraints(bds1, "*** bds1 ***");
print_constraints(bds2, "*** bds2 ***");
return !disjoint;
}
bool
test03() {
Variable x1(0);
Variable x2(1);
Constraint_System cs1;
cs1.insert(x1 >= -4);
cs1.insert(x2 - x1 <= 0);
cs1.insert(x1 - x2 <= -5);
TBD_Shape bds1(2);
bds1.add_constraints(cs1);
print_constraints(bds1, "*** bds1 ***");
Constraint_System cs2;
cs2.insert(2*x1 >= 1);
cs2.insert(2*x1 <= 3);
cs2.insert(6*x2 <= 1);
cs2.insert(3*x2 >= -2);
TBD_Shape bds2(2);
bds2.add_constraints(cs2);
print_constraints(bds2, "*** bds2 ***");
bool disjoint = bds1.is_disjoint_from(bds2);
return disjoint;
}
bool
test04() {
Variable x(0);
Variable y(1);
TBD_Shape bds1(2);
bds1.add_constraint(x >= y);
TBD_Shape bds2(3);
try {
// This is an invalid use of method
// BD_Shape::is_disjoint_from(bds2): it is illegal
// to apply this method to two polyhedra of different dimensions.
bds1.is_disjoint_from(bds2);
}
catch (std::invalid_argument& e) {
nout << "invalid_argument: " << e.what() << endl;
return true;
}
catch (...) {
return false;
}
return false;
}
bool
test05() {
Variable A(0);
Variable B(1);
TBD_Shape bds1(2, EMPTY);
TBD_Shape bds2(2);
bds2.add_constraint(A - B <= 5);
bool disjoint = bds1.is_disjoint_from(bds2);
print_constraints(bds1, "*** bds1 ***");
print_constraints(bds2, "*** bds2 ***");
return disjoint;
}
bool
test06() {
Variable A(0);
Variable B(1);
TBD_Shape bds1(2);
bds1.add_constraint(A >= 0);
bds1.add_constraint(B >= -4);
TBD_Shape bds2(2, EMPTY);
bool disjoint = bds1.is_disjoint_from(bds2);
print_constraints(bds1, "*** bds1 ***");
print_constraints(bds2, "*** bds2 ***");
return disjoint;
}
bool
test07() {
Variable A(0);
TBD_Shape bds1(2);
bds1.add_constraint(A == 0);
TBD_Shape bds2(2);
bds2.add_constraint(A == 1);
bool ok = bds1.is_disjoint_from(bds2);
print_constraints(bds1, "*** bds1 ***");
print_constraints(bds2, "*** bds2 ***");
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);
END_MAIN
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