===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/builtin/fctr.c,v
retrieving revision 1.1.1.1
retrieving revision 1.6
diff -u -p -r1.1.1.1 -r1.6
--- OpenXM_contrib2/asir2000/builtin/fctr.c	1999/12/03 07:39:07	1.1.1.1
+++ OpenXM_contrib2/asir2000/builtin/fctr.c	2001/06/20 09:30:33	1.6
@@ -1,4 +1,52 @@
-/* $OpenXM: OpenXM/src/asir99/builtin/fctr.c,v 1.1.1.1 1999/11/10 08:12:25 noro Exp $ */
+/*
+ * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED 
+ * All rights reserved.
+ * 
+ * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
+ * non-exclusive and royalty-free license to use, copy, modify and
+ * redistribute, solely for non-commercial and non-profit purposes, the
+ * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
+ * conditions of this Agreement. For the avoidance of doubt, you acquire
+ * only a limited right to use the SOFTWARE hereunder, and FLL or any
+ * third party developer retains all rights, including but not limited to
+ * copyrights, in and to the SOFTWARE.
+ * 
+ * (1) FLL does not grant you a license in any way for commercial
+ * purposes. You may use the SOFTWARE only for non-commercial and
+ * non-profit purposes only, such as academic, research and internal
+ * business use.
+ * (2) The SOFTWARE is protected by the Copyright Law of Japan and
+ * international copyright treaties. If you make copies of the SOFTWARE,
+ * with or without modification, as permitted hereunder, you shall affix
+ * to all such copies of the SOFTWARE the above copyright notice.
+ * (3) An explicit reference to this SOFTWARE and its copyright owner
+ * 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@sec.flab.fujitsu.co.jp of the detailed specification
+ * for such modification or the source code of the modified part of the
+ * SOFTWARE.
+ * 
+ * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
+ * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
+ * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
+ * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
+ * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
+ * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
+ * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
+ * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
+ * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
+ * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
+ * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
+ * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
+ * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
+ * 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 $ 
+*/
 #include "ca.h"
 #include "parse.h"
 
@@ -6,10 +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 Pirred_check(), Pnfctr_mod();
 
 struct ftab fctr_tab[] = {
-	{"fctr",Pfctr,1},
+	{"fctr",Pfctr,-2},
 	{"gcd",Pgcd,-3},
 	{"gcdz",Pgcdz,2},
 	{"lcm",Plcm,2},
@@ -21,6 +70,7 @@ struct ftab fctr_tab[] = {
 	{"agcd",Pagcd,3},
 	{"modsqfr",Pmodsqfr,2},
 	{"modfctr",Pmodfctr,2},
+	{"sffctr",Psffctr,1},
 #if 0
 	{"ddd",Pddd,2},
 	{"newddd",Pnewddd,2},
@@ -38,7 +88,12 @@ LIST *rp;
 	DCP dc;
 
 	asir_assert(ARG0(arg),O_P,"fctr");
-	fctrp(CO,(P)ARG0(arg),&dc);
+	if ( argc(arg) == 1 )
+		fctrp(CO,(P)ARG0(arg),&dc);
+	else {
+		asir_assert(ARG1(arg),O_P,"fctr");
+		fctr_wrt_v_p(CO,(P)ARG0(arg),VR((P)ARG1(arg)),&dc);
+	}
 	dcptolist(dc,rp);
 }
 
@@ -58,7 +113,7 @@ P *rp;
 	else if ( !p2 )
 		*rp = p1;
 	else if ( !qpcheck((Obj)p1) || !qpcheck((Obj)p2) )
-		error("gcd : invalid argument");
+		gcdprsp(CO,p1,p2,rp);
 	else if ( argc(arg) == 2 )
 		ezgcdp(CO,p1,p2,rp);
 	else {
@@ -258,6 +313,20 @@ LIST *rp;
 	if ( mod < 0 )
 		error("modfctr : invalid modulus");
 	modfctrp(ARG0(arg),mod,NEWDDD,&dc);
+	if ( !dc ) {
+		NEWDC(dc); COEF(dc) = 0; DEG(dc) = ONE; NEXT(dc) = 0;
+	}
+	dcptolist(dc,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;
 	}