| 45 | |
| 46 | template<class View, ReifyMode rm> |
| 47 | inline ExecStatus |
| 48 | ReProp<View,rm>::post(Home home, ViewArray<View>& x, View y, BoolView b) { |
| 49 | if (x.size() == 0) { |
| 50 | if (rm != RM_PMI) |
| 51 | GECODE_ME_CHECK(b.zero(home)); |
| 52 | return ES_OK; |
| 53 | } |
| 54 | |
| 55 | x.unique(); |
| 56 | |
| 57 | if (x.size() == 1) |
| 58 | return Rel::ReEqDom<View,BoolView,rm>::post(home,x[0],y,b); |
| 59 | |
| 60 | if (x.same(y)) { |
| 61 | if (rm != RM_IMP) |
| 62 | GECODE_ME_CHECK(b.one(home)); |
| 63 | return ES_OK; |
| 64 | } |
| 65 | |
| 66 | // Eliminate assigned views and store them into the value set |
| 67 | ValSet vs; |
| 68 | add(home, vs, x); |
| 69 | |
| 70 | switch (vs.compare(y)) { |
| 71 | case Iter::Ranges::CS_SUBSET: |
| 72 | if (rm != RM_IMP) |
| 73 | GECODE_ME_CHECK(b.one(home)); |
| 74 | return ES_OK; |
| 75 | case Iter::Ranges::CS_DISJOINT: |
| 76 | if (x.size() == 0) { |
| 77 | if (rm != RM_PMI) |
| 78 | GECODE_ME_CHECK(b.zero(home)); |
| 79 | return ES_OK; |
| 80 | } |
| 81 | break; |
| 82 | case Iter::Ranges::CS_NONE: |
| 83 | break; |
| 84 | default: |
| 85 | GECODE_NEVER; |
| 86 | } |
| 87 | |
| 88 | (void) new (home) ReProp<View,rm>(home, vs, x, y, b); |
| 89 | return ES_OK; |
| 90 | } |
| 91 | |
| 92 | template<class View, ReifyMode rm> |
| 93 | forceinline |