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00038 #include "gecode/int/channel.hh"
00039
00040 namespace Gecode {
00041
00042 void
00043 channel(Space* home, const IntVarArgs& x, const IntVarArgs& y,
00044 IntConLevel icl, PropKind) {
00045 using namespace Int;
00046 using namespace Channel;
00047 int n = x.size();
00048 if (n != y.size())
00049 throw ArgumentSizeMismatch("Int::channel");
00050 if (x.same() || y.same())
00051 throw ArgumentSame("Int::channel");
00052 if (home->failed()) return;
00053 if (n == 0)
00054 return;
00055
00056 if (icl == ICL_DOM) {
00057 DomInfo<IntView>* di
00058 = DomInfo<IntView>::allocate(home,2*n);
00059 for (int i=n; i--; ) {
00060 di[i ].init(x[i],n);
00061 di[i+n].init(y[i],n);
00062 }
00063 if (x.same(y)) {
00064 GECODE_ES_FAIL(home,(Dom<IntView,true>::post(home,n,di)));
00065 } else {
00066 GECODE_ES_FAIL(home,(Dom<IntView,false>::post(home,n,di)));
00067 }
00068 } else {
00069 ValInfo<IntView>* vi
00070 = ValInfo<IntView>::allocate(home,2*n);
00071 for (int i=n; i--; ) {
00072 vi[i ].init(x[i],n);
00073 vi[i+n].init(y[i],n);
00074 }
00075 if (x.same(y)) {
00076 GECODE_ES_FAIL(home,(Val<IntView,true>::post(home,n,vi)));
00077 } else {
00078 GECODE_ES_FAIL(home,(Val<IntView,false>::post(home,n,vi)));
00079 }
00080 }
00081 }
00082
00083 void
00084 channel(Space* home, BoolVar x0, IntVar x1, IntConLevel, PropKind) {
00085 using namespace Int;
00086 if (home->failed()) return;
00087 GECODE_ES_FAIL(home,Channel::LinkSingle::post(home,x0,x1));
00088 }
00089
00090 void
00091 channel(Space* home, const BoolVarArgs& x, IntVar y, int o,
00092 IntConLevel, PropKind) {
00093 using namespace Int;
00094 if (x.same())
00095 throw ArgumentSame("Int::channel");
00096 Limits::check(o,"Int::channel");
00097 if (home->failed()) return;
00098 ViewArray<BoolView> xv(home,x);
00099 GECODE_ES_FAIL(home,Channel::LinkMulti::post(home,xv,y,o));
00100 }
00101
00102 namespace {
00103 using namespace Int;
00104 GECODE_REGISTER2(Channel::Dom<IntView, false>);
00105 GECODE_REGISTER2(Channel::Dom<IntView, true>);
00106 GECODE_REGISTER2(Channel::Val<IntView, false>);
00107 GECODE_REGISTER2(Channel::Val<IntView, true>);
00108 GECODE_REGISTER1(Channel::LinkSingle);
00109 GECODE_REGISTER1(Channel::LinkMulti);
00110 }
00111
00112 }
00113
00114