263 lines
7.6 KiB
C++
263 lines
7.6 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
|
|
/*
|
|
* Main authors:
|
|
* Guido Tack <tack@gecode.org>
|
|
*
|
|
* Contributing authors:
|
|
* Gabor Szokoli <szokoli@gecode.org>
|
|
*
|
|
* Copyright:
|
|
* Guido Tack, 2004, 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 <gecode/set.hh>
|
|
#include <gecode/set/rel.hh>
|
|
#include <gecode/set/rel-op.hh>
|
|
|
|
namespace Gecode { namespace Set { namespace RelOp {
|
|
|
|
template<class View0, class View1, class Res>
|
|
forceinline void
|
|
rel_eq(Home home, View0 x0, SetOpType op, View1 x1, Res x2) {
|
|
switch(op) {
|
|
case SOT_DUNION:
|
|
{
|
|
EmptyView emptyset;
|
|
GECODE_ES_FAIL((SuperOfInter<View0,View1,EmptyView>
|
|
::post(home, x0, x1, emptyset)));
|
|
}
|
|
// fall through
|
|
case SOT_UNION:
|
|
{
|
|
GECODE_ES_FAIL(
|
|
(Union<View0,View1,Res>
|
|
::post(home, x0, x1, x2)));
|
|
}
|
|
break;
|
|
case SOT_INTER:
|
|
{
|
|
GECODE_ES_FAIL((Intersection<View0,View1,Res>
|
|
::post(home, x0,x1,x2)));
|
|
}
|
|
break;
|
|
case SOT_MINUS:
|
|
{
|
|
ComplementView<View1> cx1(x1);
|
|
GECODE_ES_FAIL(
|
|
(Intersection<View0,
|
|
ComplementView<View1>,Res>
|
|
::post(home,x0,cx1,x2)));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
template<class View0, class View1, class View2>
|
|
forceinline void
|
|
rel_sub(Home home, View0 x0, SetOpType op, View1 x1, View2 x2) {
|
|
switch(op) {
|
|
case SOT_DUNION:
|
|
{
|
|
EmptyView emptyset;
|
|
GECODE_ES_FAIL((SuperOfInter<View0,View1,EmptyView>
|
|
::post(home, x0, x1, emptyset)));
|
|
}
|
|
// fall through
|
|
case SOT_UNION:
|
|
{
|
|
SetVar tmp(home);
|
|
GECODE_ES_FAIL(
|
|
(Rel::Subset<SetView,View2>::post(home,tmp,x2)));
|
|
|
|
GECODE_ES_FAIL(
|
|
(Union<View0,View1,SetView>
|
|
::post(home, x0, x1, tmp)));
|
|
}
|
|
break;
|
|
case SOT_INTER:
|
|
{
|
|
GECODE_ES_FAIL((SuperOfInter<View0,View1,View2>
|
|
::post(home, x0,x1,x2)));
|
|
}
|
|
break;
|
|
case SOT_MINUS:
|
|
{
|
|
ComplementView<View1> cx1(x1);
|
|
GECODE_ES_FAIL(
|
|
(SuperOfInter<View0,
|
|
ComplementView<View1>,View2>
|
|
::post(home,x0,cx1,x2)));
|
|
}
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
template<class View0, class View1, class View2>
|
|
forceinline void
|
|
rel_sup(Home home, View0 x0, SetOpType op, View1 x1, View2 x2) {
|
|
switch(op) {
|
|
case SOT_DUNION:
|
|
{
|
|
EmptyView emptyset;
|
|
GECODE_ES_FAIL((SuperOfInter<View0,View1,EmptyView>
|
|
::post(home, x0, x1, emptyset)));
|
|
}
|
|
// fall through
|
|
case SOT_UNION:
|
|
{
|
|
GECODE_ES_FAIL(
|
|
(SubOfUnion<View0,View1,View2>
|
|
::post(home, x0, x1, x2)));
|
|
}
|
|
break;
|
|
case SOT_INTER:
|
|
{
|
|
SetVar tmp(home);
|
|
GECODE_ES_FAIL(
|
|
(Rel::Subset<View2,SetView>::post(home,x2,tmp)));
|
|
|
|
GECODE_ES_FAIL((Intersection<View0,View1,SetView>
|
|
::post(home, x0,x1,tmp)));
|
|
}
|
|
break;
|
|
case SOT_MINUS:
|
|
{
|
|
SetVar tmp(home);
|
|
GECODE_ES_FAIL(
|
|
(Rel::Subset<View2,SetView>::post(home,x2,tmp)));
|
|
|
|
ComplementView<View1> cx1(x1);
|
|
GECODE_ES_FAIL(
|
|
(Intersection<View0,
|
|
ComplementView<View1>,SetView>
|
|
::post(home,x0,cx1,tmp)));
|
|
}
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
template<class View>
|
|
forceinline void
|
|
rel_op_post_lex(Home home, SetView x0, SetRelType r, View x1) {
|
|
switch (r) {
|
|
case SRT_LQ:
|
|
GECODE_ES_FAIL((Rel::Lq<SetView,View,false>::post(home,x0,x1)));
|
|
break;
|
|
case SRT_LE:
|
|
GECODE_ES_FAIL((Rel::Lq<SetView,View,true>::post(home,x0,x1)));
|
|
break;
|
|
case SRT_GQ:
|
|
GECODE_ES_FAIL((Rel::Lq<View,SetView,false>::post(home,x1,x0)));
|
|
break;
|
|
case SRT_GR:
|
|
GECODE_ES_FAIL((Rel::Lq<View,SetView,true>::post(home,x1,x0)));
|
|
break;
|
|
default:
|
|
throw UnknownRelation("Set::rel");
|
|
}
|
|
}
|
|
|
|
template<class View0, class View1, class View2>
|
|
forceinline void
|
|
rel_op_post_nocompl(Home home, View0 x, SetOpType op, View1 y,
|
|
SetRelType r, View2 z) {
|
|
if (home.failed()) return;
|
|
switch(r) {
|
|
case SRT_EQ:
|
|
rel_eq<View0,View1,View2>(home, x, op, y, z);
|
|
break;
|
|
case SRT_LQ: case SRT_LE: case SRT_GQ: case SRT_GR:
|
|
{
|
|
SetVar tmp(home,IntSet::empty,Set::Limits::min,Set::Limits::max);
|
|
rel_eq<View0,View1,SetView>(home, x, op, y, tmp);
|
|
rel_op_post_lex<View2>(home,tmp,r,z);
|
|
}
|
|
break;
|
|
case SRT_NQ:
|
|
{
|
|
SetVar tmp(home);
|
|
GECODE_ES_FAIL(
|
|
(Rel::Distinct<SetView,View2>
|
|
::post(home,tmp,z)));
|
|
rel_eq<View0,View1,SetView>(home, x, op, y, tmp);
|
|
}
|
|
break;
|
|
case SRT_SUB:
|
|
rel_sub<View0,View1,View2>(home, x, op, y, z);
|
|
break;
|
|
case SRT_SUP:
|
|
rel_sup<View0,View1,View2>(home, x, op, y, z);
|
|
break;
|
|
case SRT_DISJ:
|
|
{
|
|
SetVar tmp(home);
|
|
EmptyView emptyset;
|
|
GECODE_ES_FAIL((SuperOfInter<View2,SetView,EmptyView>
|
|
::post(home, z, tmp, emptyset)));
|
|
rel_eq<View0,View1,SetView>(home, x, op, y, tmp);
|
|
}
|
|
break;
|
|
default:
|
|
GECODE_NEVER;
|
|
}
|
|
|
|
}
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_nocompl(Home home, SetView x, SetOpType op, SetView y,
|
|
SetRelType r, SetView z);
|
|
GECODE_SET_EXPORT void
|
|
post_nocompl(Home home, ConstSetView x, SetOpType op, SetView y,
|
|
SetRelType r, SetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_nocompl(Home home, SetView x, SetOpType op, SetView y,
|
|
SetRelType r, ConstSetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_nocompl(Home home, ConstSetView x, SetOpType op, SetView y,
|
|
SetRelType r, ConstSetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_compl(Home home, SetView x, SetOpType op, SetView y, SetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_compl(Home home, ConstSetView x, SetOpType op, SetView y, SetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_compl(Home home, SetView x, SetOpType op, SetView y, ConstSetView z);
|
|
|
|
GECODE_SET_EXPORT void
|
|
post_compl(Home home, ConstSetView x, SetOpType op, SetView y,
|
|
ConstSetView z);
|
|
|
|
}}}
|
|
|
|
// STATISTICS: set-prop
|