===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/dist.c,v
retrieving revision 1.15
retrieving revision 1.19
diff -u -p -r1.15 -r1.19
--- OpenXM_contrib2/asir2000/engine/dist.c	2001/03/29 09:49:57	1.15
+++ OpenXM_contrib2/asir2000/engine/dist.c	2001/10/09 01:36:11	1.19
@@ -45,7 +45,7 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2000/engine/dist.c,v 1.14 2001/02/21 07:10:18 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/engine/dist.c,v 1.18 2001/09/13 03:04:28 noro Exp $ 
 */
 #include "ca.h"
 
@@ -65,28 +65,13 @@
 int (*cmpdl)()=cmpdl_revgradlex;
 int (*primitive_cmpdl[3])() = {cmpdl_revgradlex,cmpdl_gradlex,cmpdl_lex};
 
-void comm_muld(VL,DP,DP,DP *);
-void weyl_muld(VL,DP,DP,DP *);
-void weyl_muldm(VL,MP,DP,DP *);
-void weyl_mulmm(VL,MP,MP,int,struct cdl *,int);
-void comm_muld_tab(VL,int,struct cdl *,int,struct cdl *,int,struct cdl *);
-
-void mkwc(int,int,Q *);
-
-int cmpdl_weyl_elim();
-int cmpdl_homo_ww_drl();
-
 int do_weyl;
 
 int dp_nelim,dp_fcoeffs;
 struct order_spec dp_current_spec;
 int *dp_dl_work;
 
-int has_fcoef(DP);
-int has_fcoef_p(P);
-
-int has_fcoef(f)
-DP f;
+int has_fcoef(DP f)
 {
 	MP t;
 
@@ -98,8 +83,7 @@ DP f;
 	return t ? 1 : 0;
 }
 
-int has_fcoef_p(f)
-P f;
+int has_fcoef_p(P f)
 {
 	DCP dc;
 
@@ -118,8 +102,7 @@ P f;
 	}
 }
 
-void initd(spec)
-struct order_spec *spec;
+void initd(struct order_spec *spec)
 {
 	switch ( spec->id ) {
 		case 2:
@@ -161,18 +144,16 @@ struct order_spec *spec;
 	dp_current_spec = *spec;
 }
 
-void ptod(vl,dvl,p,pr)
-VL vl,dvl;
-P p;
-DP *pr;
+void ptod(VL vl,VL dvl,P p,DP *pr)
 {
 	int isconst = 0;
-	int n,i;
+	int n,i,j,k;
 	VL tvl;
 	V v;
 	DL d;
 	MP m;
 	DCP dc;
+	DCP *w;
 	DP r,s,t,u;
 	P x,c;
 
@@ -187,15 +168,25 @@ DP *pr;
 			for ( i = 0, tvl = dvl, v = VR(p);
 				tvl && tvl->v != v; tvl = NEXT(tvl), i++ );
 			if ( !tvl ) {
-				for ( dc = DC(p), s = 0, MKV(v,x); dc; dc = NEXT(dc) ) {
-					ptod(vl,dvl,COEF(dc),&t); pwrp(vl,x,DEG(dc),&c);
+				for ( dc = DC(p), k = 0; dc; dc = NEXT(dc), k++ );
+				w = (DCP *)ALLOCA(k*sizeof(DCP));
+				for ( dc = DC(p), j = 0; j < k; dc = NEXT(dc), j++ )
+					w[j] = dc;
+
+				for ( j = k-1, s = 0, MKV(v,x); j >= 0; j-- ) {
+					ptod(vl,dvl,COEF(w[j]),&t); pwrp(vl,x,DEG(w[j]),&c);
 					muldc(vl,t,c,&r); addd(vl,r,s,&t); s = t;
 				}
 				*pr = s;
 			} else {
-				for ( dc = DC(p), s = 0; dc; dc = NEXT(dc) ) {
-					ptod(vl,dvl,COEF(dc),&t);
-					NEWDL(d,n); d->td = QTOS(DEG(dc)); d->d[i] = d->td;
+				for ( dc = DC(p), k = 0; dc; dc = NEXT(dc), k++ );
+				w = (DCP *)ALLOCA(k*sizeof(DCP));
+				for ( dc = DC(p), j = 0; j < k; dc = NEXT(dc), j++ )
+					w[j] = dc;
+
+				for ( j = k-1, s = 0; j >= 0; j-- ) {
+					ptod(vl,dvl,COEF(w[j]),&t);
+					NEWDL(d,n); d->td = QTOS(DEG(w[j])); d->d[i] = d->td;
 					NEWMP(m); m->dl = d; C(m) = (P)ONE; NEXT(m) = 0; MKDP(n,m,u); u->sugar = d->td;
 					comm_muld(vl,t,u,&r); addd(vl,r,s,&t); s = t;
 				}
@@ -203,18 +194,18 @@ DP *pr;
 			}
 		}
 	}
+#if 0
 	if ( !dp_fcoeffs && has_fcoef(*pr) )
 		dp_fcoeffs = 1;
+#endif
 }
 
-void dtop(vl,dvl,p,pr)
-VL vl,dvl;
-DP p;
-P *pr;
+void dtop(VL vl,VL dvl,DP p,P *pr)
 {
-	int n,i;
+	int n,i,j,k;
 	DL d;
 	MP m;
+	MP *a;
 	P r,s,t,u,w;
 	Q q;
 	VL tvl;
@@ -222,7 +213,13 @@ P *pr;
 	if ( !p )
 		*pr = 0;
 	else {
-		for ( n = p->nv, m = BDY(p), s = 0; m; m = NEXT(m) ) {
+		for ( k = 0, m = BDY(p); m; m = NEXT(m), k++ );
+		a = (MP *)ALLOCA(k*sizeof(MP));
+		for ( j = 0, m = BDY(p); j < k; m = NEXT(m), j++ )
+			a[j] = m;
+
+		for ( n = p->nv, j = k-1, s = 0; j >= 0; j-- ) {
+			m = a[j];
 			t = C(m);
 			if ( NUM(t) && NID((Num)t) == N_M ) {
 				mptop(t,&u); t = u;
@@ -238,9 +235,7 @@ P *pr;
 	}
 }
 
-void nodetod(node,dp)
-NODE node;
-DP *dp;
+void nodetod(NODE node,DP *dp)
 {
 	NODE t;
 	int len,i,td;
@@ -266,8 +261,7 @@ DP *dp;
 	MKDP(len,m,u); u->sugar = td; *dp = u;
 }
 
-int sugard(m)
-MP m;
+int sugard(MP m)
 {
 	int s;
 
@@ -276,9 +270,7 @@ MP m;
 	return s;
 }
 
-void addd(vl,p1,p2,pr)
-VL vl;
-DP p1,p2,*pr;
+void addd(VL vl,DP p1,DP p2,DP *pr)
 {
 	int n;
 	MP m1,m2,mr,mr0;
@@ -327,12 +319,10 @@ DP p1,p2,*pr;
 
 /* for F4 symbolic reduction */
 
-void symb_addd(p1,p2,pr)
-DP p1,p2,*pr;
+void symb_addd(DP p1,DP p2,DP *pr)
 {
 	int n;
 	MP m1,m2,mr,mr0;
-	P t;
 
 	if ( !p1 )
 		*pr = p2;
@@ -381,9 +371,7 @@ DP p1,p2,*pr;
  * return : a merged list
  */
 
-NODE symb_merge(m1,m2,n)
-NODE m1,m2;
-int n;
+NODE symb_merge(NODE m1,NODE m2,int n)
 {
 	NODE top,prev,cur,m,t;
 
@@ -427,10 +415,47 @@ int n;
 	}
 }
 
-void subd(vl,p1,p2,pr)
-VL vl;
-DP p1,p2,*pr;
+DLBUCKET symb_merge_bucket(DLBUCKET m1,DLBUCKET m2,int n)
 {
+	DLBUCKET top,prev,cur,m,t;
+
+	if ( !m1 )
+		return m2;
+	else if ( !m2 )
+		return m1;
+	else {
+		if ( m1->td == m2->td ) {
+			top = m1;
+			BDY(top) = symb_merge(BDY(top),BDY(m2),n);
+			m = NEXT(m2);
+		} else if ( m1->td > m2->td ) {
+			top = m1; m = m2;
+		} else {
+			top = m2; m = m1;
+		}
+		prev = top; cur = NEXT(top);
+		/* prev->td > m->td always holds */
+		while ( cur && m ) {
+			if ( cur->td == m->td ) {
+				BDY(cur) = symb_merge(BDY(cur),BDY(m),n);
+				m = NEXT(m);
+				prev = cur; cur = NEXT(cur);
+			} else if ( cur->td > m->td ) {
+				t = NEXT(cur); NEXT(cur) = m; m = t;
+				prev = cur; cur = NEXT(cur);
+			} else {
+				NEXT(prev) = m; m = cur;
+				prev = NEXT(prev); cur = NEXT(prev);
+			}
+		}
+		if ( !cur )
+			NEXT(prev) = m;
+		return top;
+	}
+}
+
+void subd(VL vl,DP p1,DP p2,DP *pr)
+{
 	DP t;
 
 	if ( !p2 )
@@ -440,8 +465,7 @@ DP p1,p2,*pr;
 	}
 }
 
-void chsgnd(p,pr)
-DP p,*pr;
+void chsgnd(DP p,DP *pr)
 {
 	MP m,mr,mr0;
 
@@ -457,9 +481,7 @@ DP p,*pr;
 	}
 }
 
-void muld(vl,p1,p2,pr)
-VL vl;
-DP p1,p2,*pr;
+void muld(VL vl,DP p1,DP p2,DP *pr)
 {
 	if ( ! do_weyl )
 		comm_muld(vl,p1,p2,pr);
@@ -467,9 +489,7 @@ DP p1,p2,*pr;
 		weyl_muld(vl,p1,p2,pr);
 }
 
-void comm_muld(vl,p1,p2,pr)
-VL vl;
-DP p1,p2,*pr;
+void comm_muld(VL vl,DP p1,DP p2,DP *pr)
 {
 	MP m;
 	DP s,t,u;
@@ -505,11 +525,7 @@ DP p1,p2,*pr;
 	}
 }
 
-void muldm(vl,p,m0,pr)
-VL vl;
-DP p;
-MP m0;
-DP *pr;
+void muldm(VL vl,DP p,MP m0,DP *pr)
 {
 	MP m,mr,mr0;
 	P c;
@@ -534,9 +550,7 @@ DP *pr;
 	}
 }
 
-void weyl_muld(vl,p1,p2,pr)
-VL vl;
-DP p1,p2,*pr;
+void weyl_muld(VL vl,DP p1,DP p2,DP *pr)
 {
 	MP m;
 	DP s,t,u;
@@ -569,11 +583,7 @@ DP p1,p2,*pr;
 
 /* monomial * polynomial */
 
-void weyl_muldm(vl,m0,p,pr)
-VL vl;
-MP m0;
-DP p;
-DP *pr;
+void weyl_muldm(VL vl,MP m0,DP p,DP *pr)
 {
 	DP r,t,t1;
 	MP m;
@@ -631,16 +641,9 @@ DP *pr;
 /* m0 = x0^d0*x1^d1*... * dx0^e0*dx1^e1*... */
 /* rtab : array of length (e0+1)*(e1+1)*... */
 
-void weyl_mulmm(vl,m0,m1,n,rtab,rtablen)
-VL vl;
-MP m0,m1;
-int n;
-struct cdl *rtab;
-int rtablen;
+void weyl_mulmm(VL vl,MP m0,MP m1,int n,struct cdl *rtab,int rtablen)
 {
-	MP m,mr,mr0;
-	DP r,t,t1;
-	P c,c0,c1,cc;
+	P c,c0,c1;
 	DL d,d0,d1,dt;
 	int i,j,a,b,k,l,n2,s,min,curlen;
 	struct cdl *p;
@@ -739,14 +742,7 @@ int rtablen;
   ]
 */
 
-void comm_muld_tab(vl,nv,t,n,t1,n1,rt)
-VL vl;
-int nv;
-struct cdl *t;
-int n;
-struct cdl *t1;
-int n1;
-struct cdl *rt;
+void comm_muld_tab(VL vl,int nv,struct cdl *t,int n,struct cdl *t1,int n1,struct cdl *rt)
 {
 	int i,j;
 	struct cdl *p;
@@ -768,11 +764,7 @@ struct cdl *rt;
 	}
 }
 
-void muldc(vl,p,c,pr)
-VL vl;
-DP p;
-P c;
-DP *pr;
+void muldc(VL vl,DP p,P c,DP *pr)
 {
 	MP m,mr,mr0;
 
@@ -797,11 +789,7 @@ DP *pr;
 	}
 }
 
-void divsdc(vl,p,c,pr)
-VL vl;
-DP p;
-P c;
-DP *pr;
+void divsdc(VL vl,DP p,P c,DP *pr)
 {
 	MP m,mr,mr0;
 
@@ -819,10 +807,7 @@ DP *pr;
 	}
 }
 
-void adddl(n,d1,d2,dr)
-int n;
-DL d1,d2;
-DL *dr;
+void adddl(int n,DL d1,DL d2,DL *dr)
 {
 	DL dt;
 	int i;
@@ -841,11 +826,8 @@ DL *dr;
 
 /* d1 += d2 */
 
-void adddl_destructive(n,d1,d2)
-int n;
-DL d1,d2;
+void adddl_destructive(int n,DL d1,DL d2)
 {
-	DL dt;
 	int i;
 
 	d1->td += d2->td;
@@ -853,9 +835,7 @@ DL d1,d2;
 		d1->d[i] += d2->d[i];
 }
 
-int compd(vl,p1,p2)
-VL vl;
-DP p1,p2;
+int compd(VL vl,DP p1,DP p2)
 {
 	int n,t;
 	MP m1,m2;
@@ -879,9 +859,7 @@ DP p1,p2;
 	}
 }
 
-int cmpdl_lex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_lex(int n,DL d1,DL d2)
 {
 	int i;
 
@@ -889,9 +867,7 @@ DL d1,d2;
 	return i == n ? 0 : (d1->d[i] > d2->d[i] ? 1 : -1);
 }
 
-int cmpdl_revlex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_revlex(int n,DL d1,DL d2)
 {
 	int i;
 
@@ -899,9 +875,7 @@ DL d1,d2;
 	return i < 0 ? 0 : (d1->d[i] < d2->d[i] ? 1 : -1);
 }
 
-int cmpdl_gradlex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_gradlex(int n,DL d1,DL d2)
 {
 	if ( d1->td > d2->td )
 		return 1;
@@ -911,9 +885,7 @@ DL d1,d2;
 		return cmpdl_lex(n,d1,d2);
 }
 
-int cmpdl_revgradlex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_revgradlex(int n,DL d1,DL d2)
 {
 	register int i;
 	register int *p1,*p2;
@@ -929,9 +901,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_blex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_blex(int n,DL d1,DL d2)
 {
 	int c;
 
@@ -943,9 +913,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_bgradlex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_bgradlex(int n,DL d1,DL d2)
 {
 	int e1,e2,c;
 
@@ -963,9 +931,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_brevgradlex(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_brevgradlex(int n,DL d1,DL d2)
 {
 	int e1,e2,c;
 
@@ -983,9 +949,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_brevrev(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_brevrev(int n,DL d1,DL d2)
 {
 	int e1,e2,f1,f2,c,i;
 
@@ -1012,9 +976,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_bgradrev(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_bgradrev(int n,DL d1,DL d2)
 {
 	int e1,e2,f1,f2,c,i;
 
@@ -1041,9 +1003,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_blexrev(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_blexrev(int n,DL d1,DL d2)
 {
 	int e1,e2,f1,f2,c,i;
 
@@ -1064,9 +1024,7 @@ DL d1,d2;
 	}
 }
 
-int cmpdl_elim(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_elim(int n,DL d1,DL d2)
 {
 	int e1,e2,i;
 
@@ -1081,9 +1039,7 @@ DL d1,d2;
 		return cmpdl_revgradlex(n,d1,d2);
 }
 
-int cmpdl_weyl_elim(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_weyl_elim(int n,DL d1,DL d2)
 {
 	int e1,e2,i;
 
@@ -1110,9 +1066,7 @@ DL d1,d2;
 
 extern int *current_weight_vector;
 
-int cmpdl_homo_ww_drl(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_homo_ww_drl(int n,DL d1,DL d2)
 {
 	int e1,e2,m,i;
 	int *p1,*p2;
@@ -1144,9 +1098,7 @@ DL d1,d2;
 	return i < 0 ? 0 : (*p1 < *p2 ? 1 : -1);
 }
 
-int cmpdl_order_pair(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_order_pair(int n,DL d1,DL d2)
 {
 	int e1,e2,i,j,l;
 	int *t1,*t2;
@@ -1200,9 +1152,7 @@ DL d1,d2;
 	return 0;
 }
 
-int cmpdl_matrix(n,d1,d2)
-int n;
-DL d1,d2;
+int cmpdl_matrix(int n,DL d1,DL d2)
 {
 	int *v,*w,*t1,*t2;
 	int s,i,j,len;