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00028 namespace Gecode { namespace Set { namespace RelOp {
00029
00030 template <class View0, class View1, class View2>
00031 forceinline
00032 SuperOfInter<View0,View1,View2>::SuperOfInter
00033 (Space* home, View0 y0, View1 y1, View2 y2)
00034 : InhomTernaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY,
00035 View2,PC_SET_CLUB>(home,y0,y1,y2) {}
00036
00037 template <class View0, class View1, class View2>
00038 forceinline
00039 SuperOfInter<View0,View1,View2>::SuperOfInter
00040 (Space* home, bool share, SuperOfInter<View0,View1,View2>& p)
00041 : InhomTernaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY,
00042 View2,PC_SET_CLUB>(home,share,p) {}
00043
00044 template <class View0, class View1, class View2>
00045 ExecStatus
00046 SuperOfInter<View0,View1,View2>::post(Space* home,
00047 View0 x0, View1 x1, View2 x2) {
00048 (void) new (home) SuperOfInter<View0,View1,View2>(home, x0, x1, x2);
00049 return ES_OK;
00050 }
00051
00052 template <class View0, class View1, class View2>
00053 Actor*
00054 SuperOfInter<View0,View1,View2>::copy(Space* home, bool share) {
00055 return new (home) SuperOfInter(home,share,*this);
00056 }
00057
00058 template <class View0, class View1, class View2>
00059 ExecStatus
00060 SuperOfInter<View0,View1,View2>::propagate(Space* home) {
00061
00062 bool allassigned = x0.assigned() && x1.assigned() && x2.assigned();
00063
00064 ModEvent me0 = View0::pme(this);
00065 ModEvent me1 = View1::pme(this);
00066 ModEvent me2 = View2::pme(this);
00067
00068 bool modified = false;
00069
00070 do {
00071
00072 if ( modified || Rel::testSetEventLB(me0,me1)) {
00073 GlbRanges<View0> lb0(x0);
00074 GlbRanges<View1> lb1(x1);
00075 Iter::Ranges::Inter<GlbRanges<View0>,GlbRanges<View1> >
00076 is(lb0, lb1);
00077
00078 GECODE_ME_CHECK_MODIFIED(modified,x2.includeI(home,is));
00079 }
00080
00081
00082
00083 if ( modified || Rel::testSetEventAnyB(me0,me1,me2)) {
00084 modified = false;
00085 GlbRanges<View1> lb12(x1);
00086 LubRanges<View2> ub22(x2);
00087 Iter::Ranges::Diff<GlbRanges<View1>, LubRanges<View2> >
00088 diff1(lb12, ub22);
00089
00090 GECODE_ME_CHECK_MODIFIED(modified, x0.excludeI(home,diff1));
00091
00092 GlbRanges<View0> lb01(x0);
00093 LubRanges<View2> ub23(x2);
00094 Iter::Ranges::Diff<GlbRanges<View0>, LubRanges<View2> >
00095 diff2(lb01, ub23);
00096
00097 GECODE_ME_CHECK_MODIFIED(modified, x1.excludeI(home,diff2));
00098 } else {
00099 modified = false;
00100 }
00101
00102
00103 if ( modified ||
00104 Rel::testSetEventCard(me0,me1,me2) ||
00105 Rel::testSetEventUB(me0,me1)
00106 ) {
00107
00108 LubRanges<View0> ub0(x0);
00109 LubRanges<View1> ub1(x1);
00110 Iter::Ranges::Union<LubRanges<View0>, LubRanges<View1> > u(ub0,ub1);
00111
00112 unsigned int m = Iter::Ranges::size(u);
00113
00114 if (m < x0.cardMin() + x1.cardMin()) {
00115 GECODE_ME_CHECK_MODIFIED(modified,
00116 x2.cardMin( home,
00117 x0.cardMin()+x1.cardMin() - m ) );
00118 }
00119 if (m + x2.cardMax() > x1.cardMin()) {
00120 GECODE_ME_CHECK_MODIFIED(modified,
00121 x0.cardMax( home,
00122 m+x2.cardMax()-x1.cardMin() ) );
00123 }
00124 if (m + x2.cardMax() > x0.cardMin()) {
00125 GECODE_ME_CHECK_MODIFIED(modified,
00126 x1.cardMax( home,
00127 m+x2.cardMax()-x0.cardMin() ) );
00128 }
00129 }
00130 } while (modified);
00131
00132
00133 if (shared(x0,x1,x2)) {
00134 if (allassigned) {
00135 return ES_SUBSUMED;
00136 } else {
00137 return ES_NOFIX;
00138 }
00139 } else {
00140 if (x0.assigned() + x1.assigned() + x2.assigned() >= 2) {
00141 return ES_SUBSUMED;
00142 } else {
00143 return ES_FIX;
00144 }
00145 }
00146
00147 }
00148
00149 }}}
00150
00151