PolyEntry.h
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// -*- c++ -*-
//*****************************************************************************
//*****************************************************************************
#ifndef polybori_groebner_PolyEntry_h_
#define polybori_groebner_PolyEntry_h_
#include "LiteralFactorization.h"
#include "PolyEntryBase.h"
// include basic definitions
#include "groebner_defs.h"
BEGIN_NAMESPACE_PBORIGB
class PolyEntry:
public PolyEntryBase {
PolyEntry(); /* never use this one! */
typedef PolyEntry self;
typedef PolyEntryBase base;
public:
PolyEntry(const Polynomial &p): base(p) {}
bool operator==(const self& other) const { return p == other.p; }
self& operator=(const self& rhs) {
return static_cast<self&>(base::operator=(rhs));
}
self& operator=(const Polynomial& rhs) {
p = rhs;
recomputeInformation();
return *this;
}
deg_type ecart() const{ return deg-leadDeg; }
void recomputeInformation();
void markVariablePairsCalculated() {
vPairCalculated.insert(leadExp.begin(), leadExp.end());
}
bool propagatableBy(const PolyEntry& other) const {
return minimal && (deg <= 2) && (length > 1) && (p != other.p) &&
tailVariables.reducibleBy(other.leadExp);
}
bool isSingleton() const { return length == 1; }
};
inline bool
should_propagate(const PolyEntry& e){
return ( (e.length == 1) && (e.deg > 0) && (e.deg < 4) ) ||
( (e.length == 2) && (e.ecart() == 0) && (e.deg < 3) );
}
END_NAMESPACE_PBORIGB
#endif /* polybori_PolyEntry_h_ */