Method prev

gecode/int/var-imp/int.hpp:65–68

    return GECODE_INT_PD2RL(GECODE_INT_RL2PD(_next)^GECODE_INT_RL2PD(p));
  }
  forceinline IntVarImp::RangeList*
  IntVarImp::RangeList::prev(const RangeList* n) const {
    return GECODE_INT_PD2RL(GECODE_INT_RL2PD(_next)^GECODE_INT_RL2PD(n));
  }
  forceinline void
  IntVarImp::RangeList::prevnext(RangeList* p, RangeList* n) {
    _next = GECODE_INT_PD2RL(GECODE_INT_RL2PD(p)^GECODE_INT_RL2PD(n));