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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2002
*
* 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 <gecode/int/rel.hh>
#include <gecode/int/bool.hh>
#include <algorithm>
namespace Gecode {
void
rel(Home home, IntVar x0, IntRelType irt, int n, IntPropLevel) {
using namespace Int;
Limits::check(n,"Int::rel");
GECODE_POST;
IntView x(x0);
switch (irt) {
case IRT_EQ: GECODE_ME_FAIL(x.eq(home,n)); break;
case IRT_NQ: GECODE_ME_FAIL(x.nq(home,n)); break;
case IRT_LQ: GECODE_ME_FAIL(x.lq(home,n)); break;
case IRT_LE: GECODE_ME_FAIL(x.le(home,n)); break;
case IRT_GQ: GECODE_ME_FAIL(x.gq(home,n)); break;
case IRT_GR: GECODE_ME_FAIL(x.gr(home,n)); break;
default: throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, const IntVarArgs& x, IntRelType irt, int n, IntPropLevel) {
using namespace Int;
Limits::check(n,"Int::rel");
GECODE_POST;
switch (irt) {
case IRT_EQ:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.eq(home,n));
}
break;
case IRT_NQ:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.nq(home,n));
}
break;
case IRT_LQ:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.lq(home,n));
}
break;
case IRT_LE:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.le(home,n));
}
break;
case IRT_GQ:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.gq(home,n));
}
break;
case IRT_GR:
for (int i=0; i<x.size(); i++) {
IntView xi(x[i]); GECODE_ME_FAIL(xi.gr(home,n));
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, IntVar x0, IntRelType irt, IntVar x1, IntPropLevel ipl) {
using namespace Int;
GECODE_POST;
switch (irt) {
case IRT_EQ:
if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF)) {
GECODE_ES_FAIL((Rel::EqDom<IntView,IntView>::post(home,x0,x1)));
} else {
GECODE_ES_FAIL((Rel::EqBnd<IntView,IntView>::post(home,x0,x1)));
}
break;
case IRT_NQ:
GECODE_ES_FAIL((Rel::Nq<IntView,IntView>::post(home,x0,x1))); break;
case IRT_GQ:
std::swap(x0,x1); // Fall through
case IRT_LQ:
GECODE_ES_FAIL((Rel::Lq<IntView,IntView>::post(home,x0,x1))); break;
case IRT_GR:
std::swap(x0,x1); // Fall through
case IRT_LE:
GECODE_ES_FAIL((Rel::Le<IntView,IntView>::post(home,x0,x1))); break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, const IntVarArgs& x, IntRelType irt, IntVar y,
IntPropLevel ipl) {
using namespace Int;
GECODE_POST;
switch (irt) {
case IRT_EQ:
{
ViewArray<IntView> xv(home,x.size()+1);
xv[x.size()]=y;
for (int i=0; i<x.size(); i++)
xv[i]=x[i];
if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF)) {
GECODE_ES_FAIL(Rel::NaryEqDom<IntView>::post(home,xv));
} else {
GECODE_ES_FAIL(Rel::NaryEqBnd<IntView>::post(home,xv));
}
}
break;
case IRT_NQ:
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::Nq<IntView,IntView>::post(home,x[i],y)));
}
break;
case IRT_GQ:
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::Lq<IntView,IntView>::post(home,y,x[i])));
}
break;
case IRT_LQ:
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::Lq<IntView,IntView>::post(home,x[i],y)));
}
break;
case IRT_GR:
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::Le<IntView,IntView>::post(home,y,x[i])));
}
break;
case IRT_LE:
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::Le<IntView,IntView>::post(home,x[i],y)));
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, IntVar x0, IntRelType irt, IntVar x1, Reify r,
IntPropLevel ipl) {
using namespace Int;
GECODE_POST;
switch (irt) {
case IRT_EQ:
if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF)) {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,BoolView,RM_EQV>
::post(home,x0,x1,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,BoolView,RM_IMP>
::post(home,x0,x1,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,BoolView,RM_PMI>
::post(home,x0,x1,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
} else {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,BoolView,RM_EQV>
::post(home,x0,x1,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,BoolView,RM_IMP>
::post(home,x0,x1,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,BoolView,RM_PMI>
::post(home,x0,x1,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
break;
case IRT_NQ:
{
NegBoolView n(r.var());
if (vbd(ipl) == IPL_BND) {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,NegBoolView,RM_EQV>
::post(home,x0,x1,n)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,NegBoolView,RM_PMI>
::post(home,x0,x1,n)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqBnd<IntView,NegBoolView,RM_IMP>
::post(home,x0,x1,n)));
break;
default: throw UnknownReifyMode("Int::rel");
}
} else {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,NegBoolView,RM_EQV>
::post(home,x0,x1,n)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,NegBoolView,RM_PMI>
::post(home,x0,x1,n)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqDom<IntView,NegBoolView,RM_IMP>
::post(home,x0,x1,n)));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
}
break;
case IRT_GQ:
std::swap(x0,x1); // Fall through
case IRT_LQ:
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReLq<IntView,BoolView,RM_EQV>
::post(home,x0,x1,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReLq<IntView,BoolView,RM_IMP>
::post(home,x0,x1,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReLq<IntView,BoolView,RM_PMI>
::post(home,x0,x1,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
break;
case IRT_LE:
std::swap(x0,x1); // Fall through
case IRT_GR:
{
NegBoolView n(r.var());
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReLq<IntView,NegBoolView,RM_EQV>
::post(home,x0,x1,n)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReLq<IntView,NegBoolView,RM_PMI>
::post(home,x0,x1,n)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReLq<IntView,NegBoolView,RM_IMP>
::post(home,x0,x1,n)));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, IntVar x, IntRelType irt, int n, Reify r,
IntPropLevel ipl) {
using namespace Int;
Limits::check(n,"Int::rel");
GECODE_POST;
switch (irt) {
case IRT_EQ:
if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF)) {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,BoolView,RM_EQV>
::post(home,x,n,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,BoolView,RM_IMP>
::post(home,x,n,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,BoolView,RM_PMI>
::post(home,x,n,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
} else {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,BoolView,RM_EQV>
::post(home,x,n,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,BoolView,RM_IMP>
::post(home,x,n,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,BoolView,RM_PMI>
::post(home,x,n,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
break;
case IRT_NQ:
{
NegBoolView nb(r.var());
if (vbd(ipl) == IPL_BND) {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,NegBoolView,RM_EQV>
::post(home,x,n,nb)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,NegBoolView,RM_PMI>
::post(home,x,n,nb)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqBndInt<IntView,NegBoolView,RM_IMP>
::post(home,x,n,nb)));
break;
default: throw UnknownReifyMode("Int::rel");
}
} else {
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,NegBoolView,RM_EQV>
::post(home,x,n,nb)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,NegBoolView,RM_PMI>
::post(home,x,n,nb)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReEqDomInt<IntView,NegBoolView,RM_IMP>
::post(home,x,n,nb)));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
}
break;
case IRT_LE:
n--; // Fall through
case IRT_LQ:
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,BoolView,RM_EQV>
::post(home,x,n,r.var())));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,BoolView,RM_IMP>
::post(home,x,n,r.var())));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,BoolView,RM_PMI>
::post(home,x,n,r.var())));
break;
default: throw UnknownReifyMode("Int::rel");
}
break;
case IRT_GQ:
n--; // Fall through
case IRT_GR:
{
NegBoolView nb(r.var());
switch (r.mode()) {
case RM_EQV:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,NegBoolView,RM_EQV>
::post(home,x,n,nb)));
break;
case RM_IMP:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,NegBoolView,RM_PMI>
::post(home,x,n,nb)));
break;
case RM_PMI:
GECODE_ES_FAIL((Rel::ReLqInt<IntView,NegBoolView,RM_IMP>
::post(home,x,n,nb)));
break;
default: throw UnknownReifyMode("Int::rel");
}
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, const IntVarArgs& x, IntRelType irt,
IntPropLevel ipl) {
using namespace Int;
GECODE_POST;
if ((irt != IRT_NQ) && (x.size() < 2))
return;
switch (irt) {
case IRT_EQ:
{
ViewArray<IntView> xv(home,x);
if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF)) {
GECODE_ES_FAIL(Rel::NaryEqDom<IntView>::post(home,xv));
} else {
GECODE_ES_FAIL(Rel::NaryEqBnd<IntView>::post(home,xv));
}
}
break;
case IRT_NQ:
{
ViewArray<IntView> y(home,x);
GECODE_ES_FAIL((Rel::NaryNq<IntView>::post(home,y)));
}
break;
case IRT_LE:
{
ViewArray<IntView> y(home,x);
GECODE_ES_FAIL((Rel::NaryLqLe<IntView,1>::post(home,y)));
}
break;
case IRT_LQ:
{
ViewArray<IntView> y(home,x);
GECODE_ES_FAIL((Rel::NaryLqLe<IntView,0>::post(home,y)));
}
break;
case IRT_GR:
{
ViewArray<IntView> y(home,x.size());
for (int i=0; i<x.size(); i++)
y[i] = x[x.size()-1-i];
GECODE_ES_FAIL((Rel::NaryLqLe<IntView,1>::post(home,y)));
}
break;
case IRT_GQ:
{
ViewArray<IntView> y(home,x.size());
for (int i=0; i<x.size(); i++)
y[i] = x[x.size()-1-i];
GECODE_ES_FAIL((Rel::NaryLqLe<IntView,0>::post(home,y)));
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, const IntVarArgs& x, IntRelType irt, const IntVarArgs& y,
IntPropLevel ipl) {
using namespace Int;
GECODE_POST;
switch (irt) {
case IRT_GR:
{
ViewArray<IntView> xv(home,x), yv(home,y);
GECODE_ES_FAIL((Rel::LexLqLe<IntView,IntView>
::post(home,yv,xv,true)));
}
break;
case IRT_LE:
{
ViewArray<IntView> xv(home,x), yv(home,y);
GECODE_ES_FAIL((Rel::LexLqLe<IntView,IntView>
::post(home,xv,yv,true)));
}
break;
case IRT_GQ:
{
ViewArray<IntView> xv(home,x), yv(home,y);
GECODE_ES_FAIL((Rel::LexLqLe<IntView,IntView>
::post(home,yv,xv,false)));
}
break;
case IRT_LQ:
{
ViewArray<IntView> xv(home,x), yv(home,y);
GECODE_ES_FAIL((Rel::LexLqLe<IntView,IntView>
::post(home,xv,yv,false)));
}
break;
case IRT_EQ:
if (x.size() != y.size()) {
home.fail();
} else if ((vbd(ipl) == IPL_DOM) || (vbd(ipl) == IPL_DEF))
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::EqDom<IntView,IntView>
::post(home,x[i],y[i])));
}
else
for (int i=0; i<x.size(); i++) {
GECODE_ES_FAIL((Rel::EqBnd<IntView,IntView>
::post(home,x[i],y[i])));
}
break;
case IRT_NQ:
{
ViewArray<IntView> xv(home,x), yv(home,y);
GECODE_ES_FAIL((Rel::LexNq<IntView,IntView>
::post(home,xv,yv)));
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
namespace {
/// Return view array
ViewArray<Int::ConstIntView>
viewarray(Space& home, const IntArgs& x) {
ViewArray<Int::ConstIntView> xv(home, x.size());
for (int i=0; i<x.size(); i++) {
Int::Limits::check(x[i],"Int::rel");
xv[i] = Int::ConstIntView(x[i]);
}
return xv;
}
}
void
rel(Home home, const IntVarArgs& x, IntRelType irt, const IntArgs& y,
IntPropLevel) {
using namespace Int;
GECODE_POST;
switch (irt) {
case IRT_GR:
{
ViewArray<IntView> xv(home,x);
ViewArray<ConstIntView> yv(viewarray(home,y));
GECODE_ES_FAIL((Rel::LexLqLe<ConstIntView,IntView>
::post(home,yv,xv,true)));
}
break;
case IRT_LE:
{
ViewArray<IntView> xv(home,x);
ViewArray<ConstIntView> yv(viewarray(home,y));
GECODE_ES_FAIL((Rel::LexLqLe<IntView,ConstIntView>
::post(home,xv,yv,true)));
}
break;
case IRT_GQ:
{
ViewArray<IntView> xv(home,x);
ViewArray<ConstIntView> yv(viewarray(home,y));
GECODE_ES_FAIL((Rel::LexLqLe<ConstIntView,IntView>
::post(home,yv,xv,false)));
}
break;
case IRT_LQ:
{
ViewArray<IntView> xv(home,x);
ViewArray<ConstIntView> yv(viewarray(home,y));
GECODE_ES_FAIL((Rel::LexLqLe<IntView,ConstIntView>
::post(home,xv,yv,false)));
}
break;
case IRT_EQ:
if (x.size() != y.size()) {
home.fail();
} else {
for (int i=0; i<x.size(); i++)
GECODE_ME_FAIL(IntView(x[i]).eq(home,y[i]));
}
break;
case IRT_NQ:
{
ViewArray<IntView> xv(home,x);
ViewArray<ConstIntView> yv(viewarray(home,y));
GECODE_ES_FAIL((Rel::LexNq<IntView,ConstIntView>
::post(home,xv,yv)));
}
break;
default:
throw UnknownRelation("Int::rel");
}
}
void
rel(Home home, const IntArgs& x, IntRelType irt, const IntVarArgs& y,
IntPropLevel ipl) {
rel(home,y,irt,x,ipl);
}
}
// STATISTICS: int-post