===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/parse/arith.c,v
retrieving revision 1.3
retrieving revision 1.12
diff -u -p -r1.3 -r1.12
--- OpenXM_contrib2/asir2000/parse/arith.c	2000/08/22 05:04:25	1.3
+++ OpenXM_contrib2/asir2000/parse/arith.c	2004/03/03 09:25:30	1.12
@@ -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/parse/arith.c,v 1.2 2000/08/21 08:31:45 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/parse/arith.c,v 1.11 2004/02/04 07:42:07 noro Exp $ 
 */
 #include "ca.h"
 #include "parse.h"
@@ -66,20 +66,28 @@ ARF addfs, subfs, mulfs, divfs, remfs, pwrfs;
 void divsdc();
 
 struct oAFUNC afunc[] = {
-/* ??? */	{0,0,0,0,0,0,0},
-/* O_N */	{addnum,subnum,mulnum,divnum,pwrnum,chsgnnum,compnum},
-/* O_P */	{addp,subp,mulp,divr,pwrp,chsgnp,compp},
-/* O_R */	{addr,subr,mulr,divr,pwrr,chsgnr,compr},
-/* O_LIST */	{notdef,notdef,notdef,notdef,notdef,notdef,complist},
-/* O_VECT */	{addvect,subvect,mulvect,divvect,notdef,chsgnvect,compvect},
-/* O_MAT */	{addmat,submat,mulmat,divmat,pwrmat,chsgnmat,compmat},
-/* O_STR */	{addstr,notdef,notdef,notdef,notdef,notdef,compstr},
-/* O_COMP */	{addcomp,subcomp,mulcomp,divcomp,pwrcomp,chsgncomp,compcomp},
-/* O_DP */   {addd,subd,muld,divsdc,notdef,chsgnd,compd},
-/* O_UI */	{notdef,notdef,notdef,notdef,notdef,notdef,compui},
-/* O_GF2MAT */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
-/* O_ERR */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
-/* O_GFMMAT */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* ???=0 */	{0,0,0,0,0,0,0},
+/* O_N=1 */	{addnum,subnum,mulnum,divnum,pwrnum,chsgnnum,compnum},
+/* O_P=2 */	{addp,subp,mulp,divr,pwrp,chsgnp,compp},
+/* O_R=3 */	{addr,subr,mulr,divr,pwrr,chsgnr,compr},
+/* O_LIST=4 */	{notdef,notdef,notdef,notdef,notdef,notdef,complist},
+/* O_VECT=5 */	{addvect,subvect,mulvect,divvect,notdef,chsgnvect,compvect},
+/* O_MAT=6 */	{addmat,submat,mulmat,divmat,pwrmat,chsgnmat,compmat},
+/* O_STR=7 */	{addstr,notdef,notdef,notdef,notdef,notdef,compstr},
+/* O_COMP=8 */	{addcomp,subcomp,mulcomp,divcomp,pwrcomp,chsgncomp,compcomp},
+/* O_DP=9 */   {addd,subd,muld,divsdc,notdef,chsgnd,compd},
+/* O_USINT=10 */	{notdef,notdef,notdef,notdef,notdef,notdef,compui},
+/* O_ERR=11 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_GF2MAT=12 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_MATHCAP=13 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_F=14 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_GFMMAT=15 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_BYTEARRAY=16 */	{notdef,notdef,notdef,notdef,notdef,notdef,compbytearray},
+/* O_QUOTE=17 */	{addquote,subquote,mulquote,divquote,pwrquote,chsgnquote,(int(*)())notdef},
+/* O_OPTLIST=18 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_SYMBOL=19 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_RANGE=20 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
+/* O_TB=21 */	{notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
 };
 
 void arf_init() {
@@ -134,17 +142,61 @@ void arf_mul(vl,a,b,r)
 VL vl;
 Obj a,b,*r;
 {
-	int mid;
+	int mid,aid,bid;
 
-	if ( !a || !b )
+	if ( !a && !b )
 		*r = 0;
-	else if ( OID(a) == OID(b) )
-		(*(afunc[OID(a)].mul))(vl,a,b,r);
-	else if ( (mid = MAX(OID(a),OID(b))) <= O_R || 
-		(mid == O_MAT) || (mid == O_VECT) || (mid == O_DP) )
+	else if ( !a || !b ) {
+		if ( !a )
+			a = b;
+		/* compute a*0 */
+		if ( OID(a) == O_MAT || OID(a) == O_VECT )
+			(*(afunc[O_MAT].mul))(vl,a,0,r);
+		else
+			*r = 0;
+	} else if ( (aid = OID(a)) == (bid = OID(b)) )
+		(*(afunc[aid].mul))(vl,a,b,r);
+	else if ( (mid = MAX(aid,bid)) <= O_R )
 		(*afunc[mid].mul)(vl,a,b,r);
-	else
-		notdef(vl,a,b,r);
+	else {
+		switch ( aid ) {
+			case O_N: case O_P:
+				(*afunc[mid].mul)(vl,a,b,r);
+				break;
+			case O_R:
+				/* rat * something; bid > O_R */
+				if ( bid == O_VECT || bid == O_MAT )
+					(*afunc[mid].mul)(vl,a,b,r);
+				else 
+					notdef(vl,a,b,r);
+				break;
+			case O_MAT:
+				if ( bid <= O_R || bid == O_VECT || bid == O_DP )
+					(*afunc[O_MAT].mul)(vl,a,b,r);
+				else
+					notdef(vl,a,b,r);
+				break;
+			case O_VECT:
+				if ( bid <= O_R || bid == O_DP )
+					(*afunc[O_VECT].mul)(vl,a,b,r);
+				else if ( bid == O_MAT )
+					(*afunc[O_MAT].mul)(vl,a,b,r);
+				else
+					notdef(vl,a,b,r);
+				break;
+			case O_DP:
+				if ( bid <= O_P )
+					(*afunc[O_DP].mul)(vl,a,b,r);
+				else if ( bid == O_MAT || bid == O_VECT )
+					(*afunc[bid].mul)(vl,a,b,r);
+				else
+					notdef(vl,a,b,r);
+				break;
+			default:
+					notdef(vl,a,b,r);
+				break;
+		}
+	}
 }
 
 void arf_div(vl,a,b,r)
@@ -187,10 +239,18 @@ Obj a,e,*r;
 	R t;
 
 	if ( !a )
-		*r = 0;
-	else if ( !e )
-		*r = (pointer)ONE;
-	else if ( (OID(e) <= O_N) && INT(e) ) {
+		if ( !e )
+			*r = (pointer)ONE;
+		else
+			*r = 0;
+	else if ( OID(a) == O_QUOTE )
+		(*(afunc[O_QUOTE].pwr))(vl,a,e,r);
+	else if ( !e ) {
+		if ( OID(a) == O_MAT )
+			(*(afunc[O_MAT].pwr))(vl,a,e,r);
+		else	
+			*r = (pointer)ONE;
+	} else if ( (OID(e) <= O_N) && INT(e) ) {
 		if ( (OID(a) == O_P) && (SGN((Q)e) < 0) ) {
 			MKRAT((P)a,(P)ONE,1,t);
 			(*(afunc[O_R].pwr))(vl,t,e,r);
@@ -232,7 +292,7 @@ int complist(vl,a,b)
 VL vl;
 LIST a,b;
 {
-	int i,t;
+	int t;
 	NODE an,bn;
 
 	if ( !a )
@@ -242,10 +302,11 @@ LIST a,b;
 			return -1;
 	else if ( !b )
 		return 1;
-	for ( i = 0, an = BDY(a); an; i++, an = NEXT(an) );
-	for ( an = BDY(b); an; i--, an = NEXT(an) );
-	if ( i )
-		return i > 0 ? 1 : -1;
+	for ( an = BDY(a), bn = BDY(b); an && bn; an = NEXT(an), bn = NEXT(bn) );
+	if ( an && !bn )
+		return 1;
+	else if ( !an && bn )
+		return -1;
 	for ( an = BDY(a), bn = BDY(b); an; an = NEXT(an), bn = NEXT(bn) )
 		if ( t = arf_comp(vl,BDY(an),BDY(bn)) )
 			return t;