include/borderbasix/ord.cc File Reference

Go to the source code of this file.

Functions

• int my_ord (const mon &m1, const mon &m2)

---

Function Documentation

int my_ord	(	const mon &	m1,
		const mon &	m2
	)

Definition at line 2 of file ord.cc.

Referenced by choice_dlex(), choice_grevlex(), and init_algo().

                                          {
   int n1 = lvar(m1.rep), n2 =lvar(m2.rep);
   cout<<"n1"<<n1;
   cout<<"n2"<<n2;
   int n = max(n1,n2),dm1=0,dm2=0,firstdiff=0,tmpdeg1,tmpdeg2;
        
   if(n1 <0 && n2>0) return -1;
   if(n2 <0 && n1>0) return 1;
   for(int i=0;i<=n;i++)
     //for(int i=n;i>=0;i--)
     {
       tmpdeg1=m1.GetDegree(i);
       tmpdeg2=m2.GetDegree(i);
       if(tmpdeg1>tmpdeg2 && firstdiff==0) firstdiff=1;
       if(tmpdeg2>tmpdeg1 && firstdiff==0) firstdiff=-1;
       dm1+=tmpdeg1;
       dm2+=tmpdeg2;
     }
   //dm1=Degree(m1);
   //dm2=Degree(m2);
   if (dm1 < dm2) return -1;
   else if (dm1 > dm2) return 1;
   return firstdiff;
   
   //else {
   //  int i=n;
   //  while( m1.GetDegree(i) == m2.GetDegree(i) && i>=0) i--;
   //  if(i <0) 
   //    return 0;
   //  else 
   //  return ((m1.GetDegree(i)> m2.GetDegree(i)?1:-1));
   //}
}