===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/P.c,v
retrieving revision 1.2
retrieving revision 1.8
diff -u -p -r1.2 -r1.8
--- OpenXM_contrib2/asir2000/engine/P.c	2000/08/21 08:31:25	1.2
+++ OpenXM_contrib2/asir2000/engine/P.c	2003/12/23 10:39:57	1.8
@@ -23,7 +23,7 @@
  * shall be made on your publication or presentation in any form of the
  * results obtained by use of the SOFTWARE.
  * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
- * e-mail at risa-admin@flab.fujitsu.co.jp of the detailed specification
+ * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
  * for such modification or the source code of the modified part of the
  * SOFTWARE.
  * 
@@ -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/P.c,v 1.1.1.1 1999/12/03 07:39:08 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/engine/P.c,v 1.7 2003/06/24 09:49:36 noro Exp $ 
 */
 #ifndef FBASE
 #define FBASE
@@ -335,7 +335,7 @@ P p,*pr;
 	if ( !p ) 
 		*pr = NULL;
 	else if ( NUM(p) ) {
-#if defined(THINK_C) || defined(_PA_RISC1_1) || defined(__alpha) || defined(mips)
+#if defined(_PA_RISC1_1) || defined(__alpha) || defined(mips) || defined(_IBMR2)
 #ifdef FBASE
 		chsgnnum((Num)p,(Num *)pr);
 #else
@@ -460,6 +460,50 @@ P *r;
 	}
 }
 
+/* Euler derivation */
+void ediffp(vl,p,v,r)
+VL vl;
+P p;
+V v;
+P *r;
+{
+	P t;
+	DCP dc,dcr,dcr0;
+
+	if ( !p || NUM(p) ) 
+		*r = 0;
+	else {
+		if ( v == VR(p) ) {
+			for ( dc = DC(p), dcr0 = 0; 
+				  dc && DEG(dc); dc = NEXT(dc) ) {
+				MULPQ(COEF(dc),(P)DEG(dc),&t);
+				if ( t ) {
+					NEXTDC(dcr0,dcr);
+					DEG(dcr) = DEG(dc);
+					COEF(dcr) = t;
+				}
+			}
+			if ( !dcr0 )
+				*r = 0;
+			else {
+				NEXT(dcr) = 0; MKP(v,dcr0,*r);
+			}
+		} else {
+			for ( dc = DC(p), dcr0 = 0; dc; dc = NEXT(dc) ) {
+				ediffp(vl,COEF(dc),v,&t);
+				if ( t ) {
+					NEXTDC(dcr0,dcr); DEG(dcr) = DEG(dc); COEF(dcr) = t;
+				}
+			}
+			if ( !dcr0 )
+				*r = 0;
+			else {
+				NEXT(dcr) = 0; MKP(VR(p),dcr0,*r);
+			}
+		}
+	}
+}
+
 void coefp(p,d,pr)
 P p;
 int d;
@@ -567,6 +611,177 @@ Q *d;
 				m = m1;
 		}
 		*d = m;
+	}
+}
+
+void mulpc_trunc(VL vl,P p,P c,VN vn,P *pr);
+void mulpq_trunc(P p,Q q,VN vn,P *pr);
+void mulp_trunc(VL vl,P p1,P p2,VN vn,P *pr);
+
+void mulp_trunc(VL vl,P p1,P p2,VN vn,P *pr)
+{
+	register DCP dc,dct,dcr,dcr0;
+	V v1,v2;
+	P t,s,u;
+	int n1,n2,i,d,d1;
+
+	if ( !p1 || !p2 ) *pr = 0;
+	else if ( NUM(p1) ) 
+		mulpq_trunc(p2,(Q)p1,vn,pr);
+	else if ( NUM(p2) )
+		mulpq_trunc(p1,(Q)p2,vn,pr);
+	else if ( ( v1 = VR(p1) ) ==  ( v2 = VR(p2) ) ) {
+		for ( ; vn->v && vn->v != v1; vn++ )
+			if ( vn->n ) {
+				/* p1,p2 do not contain vn->v */
+				*pr = 0;
+				return;
+			}
+		if ( !vn->v )
+			error("mulp_trunc : invalid vn");
+		d = vn->n;
+		for ( dc = DC(p2), s = 0; dc; dc = NEXT(dc) ) {
+			for ( dcr0 = 0, dct = DC(p1); dct; dct = NEXT(dct) ) {
+				d1 = QTOS(DEG(dct))+QTOS(DEG(dc));
+				if ( d1 >= d ) {
+					mulp_trunc(vl,COEF(dct),COEF(dc),vn+1,&t);
+					if ( t ) {
+						NEXTDC(dcr0,dcr);
+						STOQ(d1,DEG(dcr));
+						COEF(dcr) = t;
+					}
+				}
+			}
+			if ( dcr0 ) {
+				NEXT(dcr) = 0; MKP(v1,dcr0,t);
+				addp(vl,s,t,&u); s = u; t = u = 0;
+			}
+		}
+		*pr = s;
+	} else {
+		while ( v1 != VR(vl) && v2 != VR(vl) ) 
+			vl = NEXT(vl);
+		if ( v1 == VR(vl) ) 
+			mulpc_trunc(vl,p1,p2,vn,pr);
+		else 
+			mulpc_trunc(vl,p2,p1,vn,pr);
+	}
+}
+
+void mulpq_trunc(P p,Q q,VN vn,P *pr)
+{
+	DCP dc,dcr,dcr0;
+	P t;
+	int i,d;
+	V v;
+
+	if (!p || !q)
+		*pr = 0;
+	else if ( NUM(p) ) {
+		for ( ; vn->v; vn++ )
+			if ( vn->n ) {
+				*pr = 0;
+				return;
+			}
+		MULNUM(p,q,pr);
+	} else {
+		v = VR(p);
+		for ( ; vn->v && vn->v != v; vn++ ) {
+			if ( vn->n ) {
+				/* p does not contain vn->v */
+				*pr = 0;
+				return;
+			}
+		}
+		if ( !vn->v )
+			error("mulpq_trunc : invalid vn");
+		d = vn->n;
+		for ( dcr0 = 0, dc = DC(p); dc && QTOS(DEG(dc)) >= d; dc = NEXT(dc) ) {
+			mulpq_trunc(COEF(dc),q,vn+1,&t);
+			if ( t ) {
+				NEXTDC(dcr0,dcr); COEF(dcr) = t; DEG(dcr) = DEG(dc);
+			}
+		}
+		if ( dcr0 ) {
+			NEXT(dcr) = 0; MKP(VR(p),dcr0,*pr);
+		} else
+			*pr = 0;
+	}
+}
+
+void mulpc_trunc(VL vl,P p,P c,VN vn,P *pr)
+{
+	DCP dc,dcr,dcr0;
+	P t;
+	V v;
+	int i,d;
+
+	if ( NUM(c) ) 
+		mulpq_trunc(p,(Q)c,vn,pr);
+	else {
+		v = VR(p);
+		for ( ; vn->v && vn->v != v; vn++ )
+			if ( vn->n ) {
+				/* p,c do not contain vn->v */
+				*pr = 0;
+				return;
+			}
+		if ( !vn->v )
+			error("mulpc_trunc : invalid vn");
+		d = vn->n;
+		for ( dcr0 = 0, dc = DC(p); dc && QTOS(DEG(dc)) >= d; dc = NEXT(dc) ) {
+			mulp_trunc(vl,COEF(dc),c,vn+1,&t);
+			if ( t ) {
+				NEXTDC(dcr0,dcr); COEF(dcr) = t; DEG(dcr) = DEG(dc);
+			}
+		}
+		if ( dcr0 ) {
+			NEXT(dcr) = 0; MKP(VR(p),dcr0,*pr);
+		} else
+			*pr = 0;
+	}
+}
+
+void quop_trunc(VL vl,P p1,P p2,VN vn,P *pr)
+{
+	DCP dc,dcq0,dcq;
+	P t,s,m,lc2,qt;
+	V v1,v2;
+	Q d2;
+	VN vn1;
+
+	if ( !p1 )
+		*pr = 0;
+	else if ( NUM(p2) )
+		divsp(vl,p1,p2,pr);
+	else if ( (v1 = VR(p1)) != (v2 = VR(p2)) ) {
+		for ( dcq0 = 0, dc = DC(p1); dc; dc = NEXT(dc) ) {
+			NEXTDC(dcq0,dcq);
+			DEG(dcq) = DEG(dc);
+			quop_trunc(vl,COEF(dc),p2,vn,&COEF(dcq));
+		}
+		NEXT(dcq) = 0;
+		MKP(v1,dcq0,*pr);
+	} else {
+		d2 = DEG(DC(p2));
+		lc2 = COEF(DC(p2));
+		t = p1;
+		dcq0 = 0;
+		/* vn1 = degree list of LC(p2) */
+		for ( vn1 = vn; vn1->v != v1; vn1++ );
+		vn1++;
+		while ( t ) {
+			dc = DC(t);
+			NEXTDC(dcq0,dcq);
+			subq(DEG(dc),d2,&DEG(dcq));
+			quop_trunc(vl,COEF(dc),lc2,vn1,&COEF(dcq));
+			NEXT(dcq) = 0;
+			MKP(v1,dcq,qt);
+			mulp_trunc(vl,p2,qt,vn,&m);
+			subp(vl,t,m,&s); t = s;
+		}
+		NEXT(dcq) = 0;
+		MKP(v1,dcq0,*pr);
 	}
 }
 #endif