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/* Test BD_Shape::frequency().
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 {
// Universe and empty bd shape.
bool
test01() {
Variable A(0);
TBD_Shape bds1(1);
TBD_Shape bds2(1, EMPTY);
Coefficient num1;
Coefficient den1;
Coefficient valn1;
Coefficient vald1;
Coefficient num2;
Coefficient den2;
Coefficient valn2;
Coefficient vald2;
bool ok = (!bds1.frequency(A, num1, den1, valn1, vald1)
&& !bds2.frequency(A, num2, den2, valn2, vald2));
print_constraints(bds1, "*** bds1 ***");
nout << "num1 " << num1 << ", den1 " << den1 << endl;
nout << "valn1 " << valn1 << ", vald1 " << vald1 << endl;
print_constraints(bds2, "*** bds2 ***");
nout << "num2 " << num2 << ", den2 " << den2 << endl;
nout << "valn2 " << valn2 << ", vald2 " << vald2 << endl;
return ok;
}
// 0-dimension polyhedra.
bool
test02() {
TBD_Shape bds1(0);
TBD_Shape bds2(0, EMPTY);
Coefficient num1;
Coefficient den1;
Coefficient valn1;
Coefficient vald1;
Coefficient num2;
Coefficient den2;
Coefficient valn2;
Coefficient vald2;
Linear_Expression three(3);
bool ok = (bds1.frequency(three, num1, den1, valn1, vald1)
&& num1 == 0 && den1 == 1 && valn1 == 3 && vald1 == 1
&& !bds2.frequency(three, num2, den2, valn2, vald2));
print_constraints(bds1, "*** bds1 ***");
nout << "num1 " << num1 << ", den1 " << den1 << endl;
nout << "valn1 " << valn1 << ", vald1 " << vald1 << endl;
print_constraints(bds2, "*** bds2 ***");
nout << "num2 " << num2 << ", den2 " << den2 << endl;
nout << "valn2 " << valn2 << ", vald2 " << vald2 << endl;
return ok;
}
// Non-relational test.
bool
test03() {
Variable A(0);
TBD_Shape bds(1);
bds.add_constraint(A == 0);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (bds.frequency(Linear_Expression(A), num, den, valn, vald)
&& num == 0 && den == 1 && valn == 0 && vald == 1);
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test04() {
Variable A(0);
Variable B(1);
TBD_Shape bds(2);
bds.add_constraint(A >= 0);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (!bds.frequency(Linear_Expression(A), num, den, valn, vald));
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test05() {
Variable A(0);
Variable B(1);
TBD_Shape bds(2);
bds.add_constraint(A <= 0);
bds.add_constraint(A - B >= 5);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (!bds.frequency(Linear_Expression(B), num, den, valn, vald));
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test06() {
Variable A(0);
Variable B(1);
TBD_Shape bds(2);
bds.add_constraint(A == 1);
bds.add_constraint(B == 2);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (bds.frequency(Linear_Expression(A + B - 3), num, den, valn, vald)
&& num == 0 && den == 1 && valn == 0 && vald == 1);
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test07() {
Variable A(0);
Variable B(1);
TBD_Shape bds(2);
bds.add_constraint(A <= 1);
bds.add_constraint(A >= 0);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (!bds.frequency(Linear_Expression(A - B), num, den, valn, vald));
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test08() {
Variable A(0);
Variable B(1);
Variable C(2);
TBD_Shape bds(3);
bds.add_constraint(2*A - 2*B == 2);
bds.add_constraint(3*C == 3);
bds.add_constraint(B <= 2);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (bds.frequency(Linear_Expression(A - B + C + 1),
num, den, valn, vald)
&& num == 0 && den == 1 && valn == 3 && vald == 1);
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
bool
test09() {
Variable A(0);
Variable B(1);
Variable C(2);
TBD_Shape bds(3);
bds.add_constraint(4*A - 4*B == 1);
bds.add_constraint(3*C == 1);
bds.add_constraint(B <= 2);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool discrete = bds.frequency(Linear_Expression(A - B),
num, den, valn, vald);
// If the shape is based on an integral coefficient type, then
// approximations will induce non discreteness of the linear expression.
bool ok = std::numeric_limits<TBD_Shape::coefficient_type_base>::is_integer
? (!discrete && num == 0 && den == 0 && valn == 0 && vald == 0)
: (discrete && num == 0 && den == 1 && valn == 1 && vald == 4);
print_constraints(bds, "*** bds ***");
nout << "num " << num << ", den " << den << endl;
nout << "valn " << valn << ", vald " << vald << endl;
return ok;
}
// Non-relational test of an empty bd_shape in 1-dimension.
bool
test10() {
Variable A(0);
TBD_Shape bds(1);
bds.add_constraint(A <= 0);
bds.add_constraint(A >= 1);
Coefficient num;
Coefficient den;
Coefficient valn;
Coefficient vald;
bool ok = (!bds.frequency(Linear_Expression(A), num, den, valn, vald));
print_constraints(bds, "*** bds ***");
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);
END_MAIN
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