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#include "termorder.h"
#include <assert.h>
#include "printer.h"
// To do: FIX ROWDOT, MUST USE LONGS
void TermOrder::print(Printer &p)const
{
p.printString("TermOrder");
p.printNewLine();
}
void TermOrder::printMatrix(Printer &p, int dim)const
{
IntegerVectorList l;
for(int i=0;i<dim;i++)
{
IntegerVector row(dim);
for(int j=0;j<dim;j++)
{
row[j]=rowDot(i,IntegerVector::standardVector(dim,j));
}
l.push_back(row);
}
p.printVectorList(l);
p.printNewLine();
}
//-----------------------------------------
// LexicographicTermOrder
//-----------------------------------------
LexicographicTermOrder::LexicographicTermOrder(int largest)
{
this->largest=largest;
}
int LexicographicTermOrder::rowDot(int row, const IntegerVector &v)const
{
return v[(unsigned int)(row+largest)%(unsigned int)v.size()];
}
bool LexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
{
if(a.size()!=b.size())
{
fprintf(Stderr,"Lexicographic term order compare failed on the following vectors:\n");
AsciiPrinter(Stderr).printVector(a);
fprintf(Stderr,"\n");
AsciiPrinter(Stderr).printVector(b);
fprintf(Stderr,"\n");
assert(a.size()==b.size());
}
int n=a.size();
int nLoop=n;
if(perturbationDegree>=0)nLoop=perturbationDegree;
for(int i=0;i<nLoop;i++)
{
int index=(unsigned int)(i+largest)%(unsigned int)n;
if((int64)scaleA*a[index]<(int64)scaleB*b[index])return true;
if((int64)scaleA*a[index]>(int64)scaleB*b[index])return false;
}
return false;
}
/*bool LexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
int n=a.size();
assert(b.size()==n);
for(int i=0;i<n;i++)
{
if(b[i]>a[i])return true;
if(b[i]<a[i])return false;
}
return false;
}*/
void LexicographicTermOrder::print(Printer &p)const
{
p.printString("LexicographicTermOrder");
p.printNewLine();
}
//-----------------------------------------
// ReverseLexicographicTermOrder
//-----------------------------------------
ReverseLexicographicTermOrder::ReverseLexicographicTermOrder(int largest)
{
this->largest=largest;
}
int ReverseLexicographicTermOrder::index(int row, const IntegerVector &a)const
{
return (unsigned int)(-row+a.size()+largest-1)%(unsigned int)a.size(); //a>b>c //does largest work?
//return (unsigned int)(row+largest)%(unsigned int)a.size();//a<b<c
}
int ReverseLexicographicTermOrder::rowDot(int row, const IntegerVector &v)const
{
return -v[index(row,v)];
}
bool ReverseLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
{
assert(a.size()==b.size());
int n=a.size();
int nLoop=n;
if(perturbationDegree>=0)nLoop=perturbationDegree;
for(int i=0;i<nLoop;i++)
{
int index=this->index(i,a);
int64 A=(int64)scaleA*a[index];
int64 B=(int64)scaleB*b[index];
if(A>B)return true;
if(A<B)return false;
}
return false;
}
/*
bool ReverseLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
int n=a.size();
assert(b.size()==n);
for(int i=0;i<n;i++)
{
if(b[i]>a[i])return false;
if(b[i]<a[i])return true;
}
return false;
}
*/
void ReverseLexicographicTermOrder::print(Printer &p)const
{
p.printString("ReverseLexicographicTermOrder");
p.printNewLine();
}
//-----------------------------------------
// StandardGradedLexicographicTermOrder
//-----------------------------------------
StandardGradedLexicographicTermOrder::StandardGradedLexicographicTermOrder(int largest)
{
this->largest=largest;
}
int StandardGradedLexicographicTermOrder::rowDot(int row, const IntegerVector &v)const
{
if(row==0)return v.sum();
row--;
return v[(unsigned int)(row+largest)%(unsigned int)v.size()];
}
bool StandardGradedLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
{
assert(a.size()==b.size());
int n=a.size();
if(perturbationDegree==0)return false;
int64 difsum=(int64)scaleA*a.sum()-(int64)scaleB*b.sum();
if(difsum<0)return true;
if(difsum>0)return false;
if(perturbationDegree==1)return false;
int nLoop=n;
if(perturbationDegree>=0)nLoop=perturbationDegree-1;
for(int i=0;i<nLoop;i++)
{
int index=(unsigned int)(i+largest)%(unsigned int)n;
if((int64)scaleA*a[index]<(int64)scaleB*b[index])return true;
if((int64)scaleA*a[index]>(int64)scaleB*b[index])return false;
}
return false;
}
/*bool StandardGradedLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
int n=a.size();
assert(b.size()==n);
int difsum=a.sum()-b.sum();
if(difsum<0)return true;
if(difsum>0)return false;
for(int i=0;i<n;i++)
{
if(b[i]>a[i])return true;
if(b[i]<a[i])return false;
}
return false;
}*/
void StandardGradedLexicographicTermOrder::print(Printer &p)const
{
p.printString("StandardGradedLexicographicTermOrder");
p.printNewLine();
}
//-----------------------------------------
// StandardGradedReverseLexicographicTermOrder
//-----------------------------------------
/* to be fixed some day
StandardGradedReverseLexicographicTermOrder::StandardGradedReverseLexicographicTermOrder(int largest)
{
this->largest=largest;
}
int StandardGradedLexicographicTermOrder::rowDot(int row, const IntegerVector &v)const
{
if(row==0)return v.sum();
row--;
return v[(unsigned int)(row+largest)%(unsigned int)v.size()];
}
bool StandardGradedLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
{
assert(a.size()==b.size());
int n=a.size();
if(perturbationDegree==0)return false;
int64 difsum=(int64)scaleA*a.sum()-(int64)scaleB*b.sum();
if(difsum<0)return true;
if(difsum>0)return false;
if(perturbationDegree==1)return false;
int nLoop=n;
if(perturbationDegree>=0)nLoop=perturbationDegree-1;
for(int i=0;i<nLoop;i++)
{
int index=(unsigned int)(i+largest)%(unsigned int)n;
if((int64)scaleA*a[index]<(int64)scaleB*b[index])return true;
if((int64)scaleA*a[index]>(int64)scaleB*b[index])return false;
}
return false;
}
void StandardGradedLexicographicTermOrder::print(Printer &p)const
{
p.printString("StandardGradedLexicographicTermOrder");
p.printNewLine();
}
*/
//-----------------------------------------
// WeightTermOrder
//-----------------------------------------
int WeightTermOrder::rowDot(int row, const IntegerVector &v)const
{
if(row==0)return dot(v,weight);
row--;
return LexicographicTermOrder().rowDot(row,v);
}
bool WeightTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
{
// fprintf(Stderr,"Perturbation degree: %i\n",perturbationDegree);
if(perturbationDegree==0)return false;
int64 d=scaleA*dotLong(a,weight)-scaleB*dotLong(b,weight);
// int64 d=dotLong(scaleA*a-scaleB*b,weight);
/*
fprintf(Stderr,"sizeof:%i\n",sizeof(int64));
AsciiPrinter(Stderr).printVector(a);
AsciiPrinter(Stderr).printVector(b);
fprintf(Stderr,"%x %x\n",(int)d,(int)(d>>32));
fprintf(Stderr,"%x\n",(((int64)85569)*((int64)85569))/16);
*/
if(d<0)return true;
if(d>0)return false;
return LexicographicTermOrder()(a,b,scaleA,scaleB,perturbationDegree-1);
}
/*bool WeightTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
int d=dot(a-b,weight);
if(d<0)return true;
if(d>0)return false;
return LexicographicTermOrder()(a,b);
}*/
void WeightTermOrder::print(Printer &p)const
{
p.printString("WeightTermOrder");
p.printNewLine();
}
//-----------------------------------------
// WeightReverseLexicographicTermOrder
//-----------------------------------------
IntegerVector WeightReverseLexicographicTermOrder::getWeight()const
{
return weight;
}
int WeightReverseLexicographicTermOrder::rowDot(int row, const IntegerVector &v)const
{
if(row==0)return dot(v,weight);
row--;
return ReverseLexicographicTermOrder().rowDot(row,v);
}
bool WeightReverseLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
//bool WeightReverseLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
if(perturbationDegree==0)return false;
//int d=dot(scaleA*a-scaleB*b,weight);
int64 d=(int64)scaleA*dotLong(a,weight)-(int64)scaleB*dotLong(b,weight);
if(d<0)return true;
if(d>0)return false;
return ReverseLexicographicTermOrder()(a,b,scaleA,scaleB,perturbationDegree-1);
}
void WeightReverseLexicographicTermOrder::print(Printer &p)const
{
p.printString("WeightReverseLexicographicTermOrder");
p.printNewLine();
}
//-----------------------------------------
// MatrixTermOrder
//-----------------------------------------
int MatrixTermOrder::rowDot(int row, const IntegerVector &v)const
{
int nrows=weights.size();//slow
if(row<nrows)
{
IntegerVectorList::const_iterator i=weights.begin();
for(int j=0;j<nrows;j++)i++;
return dot(v,*i);
}
row-=nrows;
return ReverseLexicographicTermOrder().rowDot(row,v);
}
bool MatrixTermOrder::operator()(const IntegerVector &a, const IntegerVector &b, int scaleA, int scaleB, int perturbationDegree)const
//bool WeightReverseLexicographicTermOrder::operator()(const IntegerVector &a, const IntegerVector &b)const
{
assert(perturbationDegree);
// if(perturbationDegree==0)return false;
//int d=dot(scaleA*a-scaleB*b,weight);
for(IntegerVectorList::const_iterator i=weights.begin();i!=weights.end();i++)
{
int64 d=(int64)scaleA*dotLong(a,*i)-(int64)scaleB*dotLong(b,*i);
if(d<0)return true;
if(d>0)return false;
}
return ReverseLexicographicTermOrder()(a,b,scaleA,scaleB,perturbationDegree-1);
}
void MatrixTermOrder::print(Printer &p)const
{
p.printString("MatrixTermOrder");
p<<weights;
p.printNewLine();
}
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