Jip J. Dekker
1d9faf38de
git-subtree-dir: software/gecode git-subtree-split: 313e87646da4fc2752a70e83df16d993121a8e40
400 lines
11 KiB
C++
Executable File
400 lines
11 KiB
C++
Executable File
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
|
|
/*
|
|
* Main authors:
|
|
* Christian Schulte <schulte@gecode.org>
|
|
* Gabor Szokoli <szokoli@gecode.org>
|
|
* Vincent Barichard <Vincent.Barichard@univ-angers.fr>
|
|
*
|
|
* Copyright:
|
|
* Christian Schulte, 2003
|
|
* Gabor Szokoli, 2003
|
|
* Vincent Barichard, 2012
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
namespace Gecode { namespace Float { namespace Rel {
|
|
|
|
/*
|
|
* Less or equal propagator
|
|
*
|
|
*/
|
|
|
|
template<class View>
|
|
forceinline
|
|
Lq<View>::Lq(Home home, View x0, View x1)
|
|
: BinaryPropagator<View,PC_FLOAT_BND>(home,x0,x1) {}
|
|
|
|
template<class View>
|
|
ExecStatus
|
|
Lq<View>::post(Home home, View x0, View x1) {
|
|
GECODE_ME_CHECK(x0.lq(home,x1.max()));
|
|
GECODE_ME_CHECK(x1.gq(home,x0.min()));
|
|
if ((x0 != x1) && (x0.max() > x1.min()))
|
|
(void) new (home) Lq<View>(home,x0,x1);
|
|
return ES_OK;
|
|
}
|
|
|
|
template<class View>
|
|
forceinline
|
|
Lq<View>::Lq(Space& home, Lq<View>& p)
|
|
: BinaryPropagator<View,PC_FLOAT_BND>(home,p) {}
|
|
|
|
template<class View>
|
|
Actor*
|
|
Lq<View>::copy(Space& home) {
|
|
return new (home) Lq<View>(home,*this);
|
|
}
|
|
|
|
template<class View>
|
|
ExecStatus
|
|
Lq<View>::propagate(Space& home, const ModEventDelta&) {
|
|
GECODE_ME_CHECK(x0.lq(home,x1.max()));
|
|
GECODE_ME_CHECK(x1.gq(home,x0.min()));
|
|
return (x0.assigned() || x1.assigned() || (x0.max() <= x1.min())) ? home.ES_SUBSUMED(*this) : ES_FIX;
|
|
}
|
|
|
|
|
|
/*
|
|
* Less propagator
|
|
*
|
|
*/
|
|
template<class View>
|
|
forceinline
|
|
Le<View>::Le(Home home, View x0, View x1)
|
|
: BinaryPropagator<View,PC_FLOAT_BND>(home,x0,x1) {}
|
|
|
|
template<class View>
|
|
ExecStatus
|
|
Le<View>::post(Home home, View x0, View x1) {
|
|
GECODE_ME_CHECK(x0.lq(home,x1.max()));
|
|
GECODE_ME_CHECK(x1.gq(home,x0.min()));
|
|
if (x0.assigned() && x1.assigned()) {
|
|
if (x0.max() >= x1.min())
|
|
return ES_FAILED;
|
|
} else if (x0 == x1)
|
|
return ES_FAILED;
|
|
if (x0.max() >= x1.min())
|
|
(void) new (home) Le<View>(home,x0,x1);
|
|
return ES_OK;
|
|
}
|
|
|
|
template<class View>
|
|
forceinline
|
|
Le<View>::Le(Space& home, Le<View>& p)
|
|
: BinaryPropagator<View,PC_FLOAT_BND>(home,p) {}
|
|
|
|
template<class View>
|
|
Actor*
|
|
Le<View>::copy(Space& home) {
|
|
return new (home) Le<View>(home,*this);
|
|
}
|
|
|
|
template<class View>
|
|
ExecStatus
|
|
Le<View>::propagate(Space& home, const ModEventDelta&) {
|
|
GECODE_ME_CHECK(x0.lq(home,x1.max()));
|
|
GECODE_ME_CHECK(x1.gq(home,x0.min()));
|
|
if (x0.assigned() && x1.assigned()) {
|
|
return (x0.max() >= x1.min()) ? ES_FAILED : home.ES_SUBSUMED(*this);
|
|
}
|
|
return (x0.max() < x1.min()) ? home.ES_SUBSUMED(*this) : ES_FIX;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Reified less or equal propagator
|
|
*
|
|
*/
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLq<View,CtrlView,rm>::ReLq(Home home, View x0, View x1, CtrlView b)
|
|
: Int::ReBinaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,x0,x1,b) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLq<View,CtrlView,rm>::post(Home home, View x0, View x1, CtrlView b) {
|
|
if (b.one()) {
|
|
if (rm == RM_PMI)
|
|
return ES_OK;
|
|
return Lq<View>::post(home,x0,x1);
|
|
}
|
|
if (b.zero()) {
|
|
if (rm == RM_IMP)
|
|
return ES_OK;
|
|
return Le<View>::post(home,x1,x0);
|
|
}
|
|
if (x0 != x1) {
|
|
switch (rtest_lq(x0,x1)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one_none(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero_none(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
if (!x0.assigned() || !x1.assigned())
|
|
(void) new (home) ReLq<View,CtrlView,rm>(home,x0,x1,b);
|
|
else {
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one_none(home));
|
|
}
|
|
break;
|
|
default: GECODE_NEVER;
|
|
}
|
|
} else if (rm != RM_IMP) {
|
|
GECODE_ME_CHECK(b.one_none(home));
|
|
}
|
|
return ES_OK;
|
|
}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLq<View,CtrlView,rm>::ReLq(Space& home, ReLq& p)
|
|
: Int::ReBinaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,p) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
Actor*
|
|
ReLq<View,CtrlView,rm>::copy(Space& home) {
|
|
return new (home) ReLq<View,CtrlView,rm>(home,*this);
|
|
}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLq<View,CtrlView,rm>::propagate(Space& home, const ModEventDelta&) {
|
|
if (b.one()) {
|
|
if (rm != RM_PMI)
|
|
GECODE_REWRITE(*this,Lq<View>::post(home(*this),x0,x1));
|
|
} else if (b.zero()) {
|
|
if (rm != RM_IMP)
|
|
GECODE_REWRITE(*this,Le<View>::post(home(*this),x1,x0));
|
|
} else {
|
|
switch (rtest_lq(x0,x1)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one_none(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero_none(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
if (!x0.assigned() || !x1.assigned())
|
|
return ES_FIX;
|
|
else {
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one_none(home));
|
|
break;
|
|
}
|
|
default: GECODE_NEVER;
|
|
}
|
|
}
|
|
return home.ES_SUBSUMED(*this);
|
|
}
|
|
|
|
/*
|
|
* Reified less or equal propagator involving one variable
|
|
*
|
|
*/
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLqFloat<View,CtrlView,rm>::ReLqFloat(Home home, View x, FloatVal c0, CtrlView b)
|
|
: Int::ReUnaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,x,b), c(c0) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLqFloat<View,CtrlView,rm>::post(Home home, View x, FloatVal c, CtrlView b) {
|
|
if (b.one()) {
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(x.lq(home,c.max()));
|
|
} if (b.zero()) {
|
|
if (rm != RM_IMP) {
|
|
GECODE_ME_CHECK(x.gq(home,c.min()));
|
|
if (x.assigned() && (x.min() <= c.max()))
|
|
return ES_FAILED;
|
|
(void) new (home) ReLqFloat<View,CtrlView,rm>(home,x,c,b);
|
|
}
|
|
} else {
|
|
switch (rtest_lq(x,c)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
(void) new (home) ReLqFloat<View,CtrlView,rm>(home,x,c,b);
|
|
break;
|
|
default: GECODE_NEVER;
|
|
}
|
|
}
|
|
return ES_OK;
|
|
}
|
|
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLqFloat<View,CtrlView,rm>::ReLqFloat(Space& home, ReLqFloat& p)
|
|
: Int::ReUnaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,p), c(p.c) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
Actor*
|
|
ReLqFloat<View,CtrlView,rm>::copy(Space& home) {
|
|
return new (home) ReLqFloat<View,CtrlView,rm>(home,*this);
|
|
}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLqFloat<View,CtrlView,rm>::propagate(Space& home, const ModEventDelta&) {
|
|
if (b.one()) {
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(x0.lq(home,c.max()));
|
|
} else if (b.zero()) {
|
|
if (rm != RM_IMP)
|
|
{
|
|
GECODE_ME_CHECK(x0.gq(home,c.min()));
|
|
if (x0.assigned()) {
|
|
return (x0.min() <= c.max()) ? ES_FAILED : home.ES_SUBSUMED(*this);
|
|
}
|
|
}
|
|
} else {
|
|
switch (rtest_lq(x0,c)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
return ES_FIX;
|
|
default: GECODE_NEVER;
|
|
}
|
|
}
|
|
return home.ES_SUBSUMED(*this);
|
|
}
|
|
|
|
|
|
/*
|
|
* Reified less
|
|
*
|
|
*/
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLeFloat<View,CtrlView,rm>::ReLeFloat(Home home, View x, FloatVal c0, CtrlView b)
|
|
: Int::ReUnaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,x,b), c(c0) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLeFloat<View,CtrlView,rm>::post(Home home, View x, FloatVal c, CtrlView b) {
|
|
if (b.one()) {
|
|
if (rm != RM_PMI)
|
|
{
|
|
GECODE_ME_CHECK(x.lq(home,c.max()));
|
|
if (x.assigned() && (x.max() >= c.min()))
|
|
return ES_FAILED;
|
|
(void) new (home) ReLeFloat<View,CtrlView,rm>(home,x,c,b);
|
|
}
|
|
} else if (b.zero()) {
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(x.gq(home,c.min()));
|
|
} else {
|
|
switch (rtest_le(x,c)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
(void) new (home) ReLeFloat<View,CtrlView,rm>(home,x,c,b);
|
|
break;
|
|
default: GECODE_NEVER;
|
|
}
|
|
}
|
|
return ES_OK;
|
|
}
|
|
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
forceinline
|
|
ReLeFloat<View,CtrlView,rm>::ReLeFloat(Space& home, ReLeFloat& p)
|
|
: Int::ReUnaryPropagator<View,PC_FLOAT_BND,CtrlView>(home,p), c(p.c) {}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
Actor*
|
|
ReLeFloat<View,CtrlView,rm>::copy(Space& home) {
|
|
return new (home) ReLeFloat<View,CtrlView,rm>(home,*this);
|
|
}
|
|
|
|
template<class View, class CtrlView, ReifyMode rm>
|
|
ExecStatus
|
|
ReLeFloat<View,CtrlView,rm>::propagate(Space& home, const ModEventDelta&) {
|
|
if (b.one()) {
|
|
if (rm != RM_PMI)
|
|
{
|
|
GECODE_ME_CHECK(x0.lq(home,c.max()));
|
|
if (x0.assigned()) {
|
|
return (x0.max() >= c.min()) ? ES_FAILED : home.ES_SUBSUMED(*this);
|
|
}
|
|
}
|
|
} else if (b.zero()) {
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(x0.gq(home,c.min()));
|
|
} else {
|
|
switch (rtest_le(x0,c)) {
|
|
case RT_TRUE:
|
|
if (rm != RM_IMP)
|
|
GECODE_ME_CHECK(b.one(home));
|
|
break;
|
|
case RT_FALSE:
|
|
if (rm != RM_PMI)
|
|
GECODE_ME_CHECK(b.zero(home));
|
|
break;
|
|
case RT_MAYBE:
|
|
return ES_FIX;
|
|
default: GECODE_NEVER;
|
|
}
|
|
}
|
|
return home.ES_SUBSUMED(*this);
|
|
}
|
|
|
|
}}}
|
|
|
|
// STATISTICS: float-prop
|
|
|