===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/builtin/fctr.c,v
retrieving revision 1.6
retrieving revision 1.15
diff -u -p -r1.6 -r1.15
--- OpenXM_contrib2/asir2000/builtin/fctr.c	2001/06/20 09:30:33	1.6
+++ OpenXM_contrib2/asir2000/builtin/fctr.c	2002/10/23 07:54:57	1.15
@@ -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/builtin/fctr.c,v 1.5 2001/05/28 08:25:30 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/builtin/fctr.c,v 1.14 2002/09/30 06:15:51 noro Exp $ 
 */
 #include "ca.h"
 #include "parse.h"
@@ -54,9 +54,11 @@ void Pfctr(), Pgcd(), Pgcdz(), Plcm(), Psqfr(), Pufctr
 void Pptozp(), Pcont();
 void Pafctr(), Pagcd();
 void Pmodsqfr(),Pmodfctr(),Pddd(),Pnewddd(),Pddd_tab();
-void Psffctr();
+void Psfsqfr(),Psffctr(),Psfbfctr(),Psfufctr(),Psfmintdeg(),Psfgcd();
 void Pirred_check(), Pnfctr_mod();
 
+void sfmintdeg(VL vl,P fx,int dy,int c,P *fr);
+
 struct ftab fctr_tab[] = {
 	{"fctr",Pfctr,-2},
 	{"gcd",Pgcd,-3},
@@ -70,7 +72,12 @@ struct ftab fctr_tab[] = {
 	{"agcd",Pagcd,3},
 	{"modsqfr",Pmodsqfr,2},
 	{"modfctr",Pmodfctr,2},
+	{"sfsqfr",Psfsqfr,1},
 	{"sffctr",Psffctr,1},
+	{"sfufctr",Psfufctr,1},
+	{"sfbfctr",Psfbfctr,-4},
+	{"sfmintdeg",Psfmintdeg,5},
+	{"sfgcd",Psfgcd,2},
 #if 0
 	{"ddd",Pddd,2},
 	{"newddd",Pnewddd,2},
@@ -319,30 +326,106 @@ LIST *rp;
 	dcptolist(dc,rp);
 }
 
+void Psfgcd(arg,rp)
+NODE arg;
+LIST *rp;
+{
+	P ps[2];
+
+	ps[0] = (P)ARG0(arg);
+	ps[1] = (P)ARG1(arg);
+	gcdsf(CO,ps,2,rp);
+}
+
 void Psffctr(arg,rp)
 NODE arg;
 LIST *rp;
 {
 	DCP dc;
-	int mod;
 
-	fctrsf(ARG0(arg),&dc);
-	if ( !dc ) {
-		NEWDC(dc); COEF(dc) = 0; DEG(dc) = ONE; NEXT(dc) = 0;
+	mfctrsf(CO,ARG0(arg),&dc);
+	dcptolist(dc,rp);
+}
+
+void Psfsqfr(arg,rp)
+NODE arg;
+LIST *rp;
+{
+	DCP dc;
+
+	sqfrsf(CO,ARG0(arg),&dc);
+	dcptolist(dc,rp);
+}
+
+void Psfufctr(arg,rp)
+NODE arg;
+LIST *rp;
+{
+	DCP dc;
+
+	ufctrsf(ARG0(arg),&dc);
+	dcptolist(dc,rp);
+}
+
+void Psfbfctr(arg,rp)
+NODE arg;
+LIST *rp;
+{
+	V x,y;
+	DCP dc,dct;
+	P t;
+	struct oVL vl1,vl2;
+	VL vl;
+	int degbound;
+
+	x = VR((P)ARG1(arg));
+	y = VR((P)ARG2(arg));
+	vl1.v = x; vl1.next = &vl2;
+	vl2.v = y; vl2.next = 0;
+	vl = &vl1;
+	if ( argc(arg) == 4 )
+		degbound = QTOS((Q)ARG3(arg));
+	else
+		degbound = -1;
+
+	sfbfctr((P)ARG0(arg),x,y,degbound,&dc);
+	for ( dct = dc; dct; dct = NEXT(dct) ) {
+		reorderp(CO,vl,COEF(dct),&t); COEF(dct) = t;
 	}
 	dcptolist(dc,rp);
 }
 
+void Psfmintdeg(arg,rp)
+NODE arg;
+P *rp;
+{
+	V x,y;
+	P r;
+	struct oVL vl1,vl2;
+	VL vl;
+	int dy,c;
+
+	x = VR((P)ARG1(arg));
+	y = VR((P)ARG2(arg));
+	vl1.v = x; vl1.next = &vl2;
+	vl2.v = y; vl2.next = 0;
+	vl = &vl1;
+	dy = QTOS((Q)ARG3(arg));
+	c = QTOS((Q)ARG4(arg));
+	sfmintdeg(vl,(P)ARG0(arg),dy,c,&r);
+	reorderp(CO,vl,r,rp);
+}
+
 void Pmodsqfr(arg,rp)
 NODE arg;
 LIST *rp;
 {
 	DCP dc;
 
-	if ( !dc ) {
+	if ( !ARG0(arg) ) {
 		NEWDC(dc); COEF(dc) = 0; DEG(dc) = ONE; NEXT(dc) = 0;
-	}
-	modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),SQFR,&dc);
+	} else
+		modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),SQFR,&dc);
 	dcptolist(dc,rp);
 }
 
@@ -352,10 +435,10 @@ LIST *rp;
 {
 	DCP dc;
 
-	if ( !dc ) {
+	if ( !ARG0(arg) ) {
 		NEWDC(dc); COEF(dc) = 0; DEG(dc) = ONE; NEXT(dc) = 0;
-	}
-	modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),DDD,&dc);
+	} else
+		modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),DDD,&dc);
 	dcptolist(dc,rp);
 }
 
@@ -363,12 +446,12 @@ void Pnewddd(arg,rp)
 NODE arg;
 LIST *rp;
 {
-	DCP dc;
+	DCP dc=0;
 
-	if ( !dc ) {
+	if ( !ARG0(arg) ) {
 		NEWDC(dc); COEF(dc) = 0; DEG(dc) = ONE; NEXT(dc) = 0;
-	}
-	modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),NEWDDD,&dc);
+	} else 
+		modfctrp(ARG0(arg),QTOS((Q)ARG1(arg)),NEWDDD,&dc);
 	dcptolist(dc,rp);
 }