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00040 namespace Gecode { namespace Int { namespace Rel {
00041
00042
00043
00044
00045
00046
00047 template<class View>
00048 forceinline
00049 Lq<View>::Lq(Home home, View x0, View x1)
00050 : BinaryPropagator<View,PC_INT_BND>(home,x0,x1) {}
00051
00052 template<class View>
00053 ExecStatus
00054 Lq<View>::post(Home home, View x0, View x1) {
00055 GECODE_ME_CHECK(x0.lq(home,x1.max()));
00056 GECODE_ME_CHECK(x1.gq(home,x0.min()));
00057 if (!same(x0,x1) && (x0.max() > x1.min()))
00058 (void) new (home) Lq<View>(home,x0,x1);
00059 return ES_OK;
00060 }
00061
00062 template<class View>
00063 forceinline
00064 Lq<View>::Lq(Space& home, bool share, Lq<View>& p)
00065 : BinaryPropagator<View,PC_INT_BND>(home,share,p) {}
00066
00067 template<class View>
00068 Actor*
00069 Lq<View>::copy(Space& home, bool share) {
00070 return new (home) Lq<View>(home,share,*this);
00071 }
00072
00073 template<class View>
00074 ExecStatus
00075 Lq<View>::propagate(Space& home, const ModEventDelta&) {
00076 GECODE_ME_CHECK(x0.lq(home,x1.max()));
00077 GECODE_ME_CHECK(x1.gq(home,x0.min()));
00078 return (x0.max() <= x1.min()) ? home.ES_SUBSUMED(*this) : ES_FIX;
00079 }
00080
00081
00082
00083
00084
00085
00086
00087
00088 template<class View>
00089 forceinline
00090 Le<View>::Le(Home home, View x0, View x1)
00091 : BinaryPropagator<View,PC_INT_BND>(home,x0,x1) {}
00092
00093 template<class View>
00094 ExecStatus
00095 Le<View>::post(Home home, View x0, View x1) {
00096 if (same(x0,x1))
00097 return ES_FAILED;
00098 GECODE_ME_CHECK(x0.le(home,x1.max()));
00099 GECODE_ME_CHECK(x1.gr(home,x0.min()));
00100 if (x0.max() >= x1.min())
00101 (void) new (home) Le<View>(home,x0,x1);
00102 return ES_OK;
00103 }
00104
00105 template<class View>
00106 forceinline
00107 Le<View>::Le(Space& home, bool share, Le<View>& p)
00108 : BinaryPropagator<View,PC_INT_BND>(home,share,p) {}
00109
00110 template<class View>
00111 Actor*
00112 Le<View>::copy(Space& home, bool share) {
00113 return new (home) Le<View>(home,share,*this);
00114 }
00115
00116 template<class View>
00117 ExecStatus
00118 Le<View>::propagate(Space& home, const ModEventDelta&) {
00119 GECODE_ME_CHECK(x0.le(home,x1.max()));
00120 GECODE_ME_CHECK(x1.gr(home,x0.min()));
00121 return (x0.max() < x1.min()) ? home.ES_SUBSUMED(*this) : ES_FIX;
00122 }
00123
00124
00125
00126
00127
00128
00129
00130
00131 template<class View, class CtrlView>
00132 forceinline
00133 ReLq<View,CtrlView>::ReLq(Home home, View x0, View x1, CtrlView b)
00134 : ReBinaryPropagator<View,PC_INT_BND,CtrlView>(home,x0,x1,b) {}
00135
00136 template<class View, class CtrlView>
00137 ExecStatus
00138 ReLq<View,CtrlView>::post(Home home, View x0, View x1, CtrlView b) {
00139 if (b.one())
00140 return Lq<View>::post(home,x0,x1);
00141 if (b.zero())
00142 return Le<View>::post(home,x1,x0);
00143 if (!same(x0,x1)) {
00144 switch (rtest_lq(x0,x1)) {
00145 case RT_TRUE:
00146 GECODE_ME_CHECK(b.one_none(home)); break;
00147 case RT_FALSE:
00148 GECODE_ME_CHECK(b.zero_none(home)); break;
00149 case RT_MAYBE:
00150 (void) new (home) ReLq<View,CtrlView>(home,x0,x1,b); break;
00151 default: GECODE_NEVER;
00152 }
00153 } else {
00154 GECODE_ME_CHECK(b.one_none(home));
00155 }
00156 return ES_OK;
00157 }
00158
00159 template<class View, class CtrlView>
00160 forceinline
00161 ReLq<View,CtrlView>::ReLq(Space& home, bool share, ReLq& p)
00162 : ReBinaryPropagator<View,PC_INT_BND,CtrlView>(home,share,p) {}
00163
00164 template<class View, class CtrlView>
00165 Actor*
00166 ReLq<View,CtrlView>::copy(Space& home, bool share) {
00167 return new (home) ReLq<View,CtrlView>(home,share,*this);
00168 }
00169
00170 template<class View, class CtrlView>
00171 ExecStatus
00172 ReLq<View,CtrlView>::propagate(Space& home, const ModEventDelta&) {
00173 if (b.one())
00174 GECODE_REWRITE(*this,Lq<View>::post(home(*this),x0,x1));
00175 if (b.zero())
00176 GECODE_REWRITE(*this,Le<View>::post(home(*this),x1,x0));
00177 switch (rtest_lq(x0,x1)) {
00178 case RT_TRUE:
00179 GECODE_ME_CHECK(b.one_none(home)); return home.ES_SUBSUMED(*this);
00180 case RT_FALSE:
00181 GECODE_ME_CHECK(b.zero_none(home)); return home.ES_SUBSUMED(*this);
00182 case RT_MAYBE:
00183 break;
00184 default: GECODE_NEVER;
00185 }
00186 return ES_FIX;
00187 }
00188
00189
00190
00191
00192
00193
00194 template<class View, class CtrlView>
00195 forceinline
00196 ReLqInt<View,CtrlView>::ReLqInt(Home home, View x, int c0, CtrlView b)
00197 : ReUnaryPropagator<View,PC_INT_BND,CtrlView>(home,x,b), c(c0) {}
00198
00199 template<class View, class CtrlView>
00200 ExecStatus
00201 ReLqInt<View,CtrlView>::post(Home home, View x, int c, CtrlView b) {
00202 if (b.one()) {
00203 GECODE_ME_CHECK(x.lq(home,c));
00204 } else if (b.zero()) {
00205 GECODE_ME_CHECK(x.gr(home,c));
00206 } else {
00207 switch (rtest_lq(x,c)) {
00208 case RT_TRUE:
00209 GECODE_ME_CHECK(b.one_none(home)); break;
00210 case RT_FALSE:
00211 GECODE_ME_CHECK(b.zero_none(home)); break;
00212 case RT_MAYBE:
00213 (void) new (home) ReLqInt<View,CtrlView>(home,x,c,b); break;
00214 default: GECODE_NEVER;
00215 }
00216 }
00217 return ES_OK;
00218 }
00219
00220
00221 template<class View, class CtrlView>
00222 forceinline
00223 ReLqInt<View,CtrlView>::ReLqInt(Space& home, bool share, ReLqInt& p)
00224 : ReUnaryPropagator<View,PC_INT_BND,CtrlView>(home,share,p), c(p.c) {}
00225
00226 template<class View, class CtrlView>
00227 Actor*
00228 ReLqInt<View,CtrlView>::copy(Space& home, bool share) {
00229 return new (home) ReLqInt<View,CtrlView>(home,share,*this);
00230 }
00231
00232 template<class View, class CtrlView>
00233 ExecStatus
00234 ReLqInt<View,CtrlView>::propagate(Space& home, const ModEventDelta&) {
00235 if (b.one()) {
00236 GECODE_ME_CHECK(x0.lq(home,c)); goto subsumed;
00237 }
00238 if (b.zero()) {
00239 GECODE_ME_CHECK(x0.gr(home,c)); goto subsumed;
00240 }
00241 switch (rtest_lq(x0,c)) {
00242 case RT_TRUE:
00243 GECODE_ME_CHECK(b.one_none(home)); goto subsumed;
00244 case RT_FALSE:
00245 GECODE_ME_CHECK(b.zero_none(home)); goto subsumed;
00246 case RT_MAYBE:
00247 break;
00248 default: GECODE_NEVER;
00249 }
00250 return ES_FIX;
00251 subsumed:
00252 return home.ES_SUBSUMED(*this);
00253 }
00254
00255 }}}
00256
00257
00258