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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
*
* Copyright:
* Guido Tack, 2005
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "test/set.hh"
#include "test/int.hh"
#include <gecode/minimodel.hh>
using namespace Gecode;
namespace Test { namespace Set {
/// %Tests for set channeling constraints
namespace Channel {
/**
* \defgroup TaskTestSetChannel %Set channeling constraints
* \ingroup TaskTestSet
*/
//@{
static IntSet d1(0,2);
static IntSet d_12(-1,2);
static IntSet d2(-1,3);
static IntSet d3(0,3);
static IntSet d4(0,4);
static IntSet ds_33(-3,3);
/// %Test for sorted channeling constraint
class ChannelSorted : public SetTest {
public:
/// Create and register test
ChannelSorted(const char* t)
: SetTest(t,1,ds_33,false,3) {}
/// %Test whether \a x is solution
virtual bool solution(const SetAssignment& x) const {
if (x.ints()[0]>=x.ints()[1] ||
x.ints()[1]>=x.ints()[2])
return false;
CountableSetValues xr(x.lub, x[0]);
if (!xr())
return false;
if (xr.val() != x.ints()[0])
return false;
++xr;
if (!xr())
return false;
if (xr.val() != x.ints()[1])
return false;
++xr;
if (!xr())
return false;
if (xr.val() != x.ints()[2])
return false;
++xr;
if (xr())
return false;
return true;
}
/// Post constraint on \a x
virtual void post(Space& home, SetVarArray& x, IntVarArray& y) {
Gecode::channelSorted(home, y, x[0]);
}
};
ChannelSorted _channelSorted("Channel::Sorted");
/// %Test for integer channel constraint
class ChannelInt : public SetTest {
private:
int ssize, isize;
public:
/// Create and register test
ChannelInt(const char* t, const IntSet& d, int _ssize, int _isize)
: SetTest(t,_ssize,d,false,_isize), ssize(_ssize), isize(_isize) {}
/// %Test whether \a x is solution
virtual bool solution(const SetAssignment& x) const {
for (int i=0; i<isize; i++) {
if (x.ints()[i] < 0 || x.ints()[i] >= ssize)
return false;
Iter::Ranges::Singleton single(i,i);
CountableSetRanges csr(x.lub, x[x.ints()[i]]);
if (!Iter::Ranges::subset(single, csr))
return false;
}
for (int i=0; i<ssize; i++) {
int size = 0;
for (CountableSetValues csv(x.lub, x[i]); csv(); ++csv) {
if (csv.val() < 0 || csv.val() >= isize) return false;
if (x.ints()[csv.val()] != i) return false;
size++;
}
}
return true;
}
/// Post constraint on \a x
virtual void post(Space& home, SetVarArray& x, IntVarArray& y) {
Gecode::channel(home, y, x);
}
};
ChannelInt _channelint1("Channel::Int::1", d2, 2, 3);
ChannelInt _channelint2("Channel::Int::2", d3, 3, 3);
/// %Test for Boolean channel constraint
class ChannelBool : public SetTest {
private:
int isize;
public:
/// Create and register test
ChannelBool(const char* t, const IntSet& d, int _isize)
: SetTest(t,1,d,false,_isize), isize(_isize) {}
/// %Test whether \a x is solution
virtual bool solution(const SetAssignment& x) const {
for (int i=0; i<isize; i++) {
if (x.ints()[i] < 0 || x.ints()[i] > 1)
return false;
}
int cur = 0;
for (CountableSetValues csv(x.lub, x[0]); csv(); ++csv) {
if (csv.val() < 0 || csv.val() >= isize) return false;
if (x.ints()[csv.val()] != 1) return false;
for (; cur<csv.val(); cur++)
if (x.ints()[cur] != 0) return false;
cur = csv.val() + 1;
}
for (; cur<isize; cur++)
if (x.ints()[cur] != 0) return false;
return true;
}
/// Post constraint on \a x
virtual void post(Space& home, SetVarArray& x, IntVarArray& y) {
BoolVarArgs b(y.size());
for (int i=y.size(); i--;)
b[i] = channel(home, y[i]);
Gecode::channel(home, b, x[0]);
}
};
ChannelBool _channelbool1("Channel::Bool::1", d2, 3);
ChannelBool _channelbool2("Channel::Bool::2", d3, 3);
ChannelBool _channelbool3("Channel::Bool::3", d4, 5);
/// %Test for set channel constraint
class ChannelSet : public SetTest {
private:
int _x0size, _x1size;
public:
/// Create and register test
ChannelSet(const char* t, const IntSet& d, int x0size, int x1size)
: SetTest(t,x0size+x1size,d,false), _x0size(x0size), _x1size(x1size) {}
/// %Test whether \a x is solution
virtual bool solution(const SetAssignment& x) const {
for (int i=0; i<_x0size; i++) {
CountableSetRanges x0ir(x.lub, x[i]);
IntSet x0is(x0ir);
if (x0is.min() < 0 || x0is.max() >= _x1size)
return false;
for (int j=0; j<_x1size; j++) {
CountableSetRanges x1ir(x.lub, x[_x0size+j]);
IntSet x1is(x1ir);
if (x1is.min() < 0 || x1is.max() >= _x0size)
return false;
bool jInI = x0is.in(j);
bool iInJ = x1is.in(i);
if (jInI != iInJ)
return false;
}
}
return true;
}
/// Post constraint on \a x
virtual void post(Space& home, SetVarArray& x, IntVarArray&) {
SetVarArgs x0(x.slice(0,1,_x0size));
SetVarArgs x1(x.slice(_x0size));
Gecode::channel(home, x0,x1);
}
};
ChannelSet _channelSet12("Channel::Set::1::2", d1, 2,2);
ChannelSet _channelSet13("Channel::Set::1::3", d1, 2,3);
ChannelSet _channelSet22("Channel::Set::2::2", d3, 2,2);
ChannelSet _channelSet23("Channel::Set::2::3", d3, 2,3);
ChannelSet _channelSet32("Channel::Set::3::2", d_12, 2,2);
ChannelSet _channelSet33("Channel::Set::3::3", d_12, 2,3);
}}}
// STATISTICS: test-set
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