===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/builtin/dp.c,v
retrieving revision 1.18
retrieving revision 1.21
diff -u -p -r1.18 -r1.21
--- OpenXM_contrib2/asir2000/builtin/dp.c	2001/09/19 09:28:16	1.18
+++ OpenXM_contrib2/asir2000/builtin/dp.c	2001/10/09 01:36:05	1.21
@@ -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/dp.c,v 1.17 2001/09/05 01:57:32 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/builtin/dp.c,v 1.20 2001/10/05 10:23:06 noro Exp $ 
 */
 #include "ca.h"
 #include "base.h"
@@ -146,7 +146,7 @@ struct ftab dp_tab[] = {
 
 	/* F4 algorithm */
 	{"dp_weyl_f4_main",Pdp_weyl_f4_main,3},
-/*	{"dp_weyl_f4_mod_main",Pdp_weyl_f4_mod_main,4}, */
+	{"dp_weyl_f4_mod_main",Pdp_weyl_f4_mod_main,4},
 
 	/* misc */
 	{"dp_weyl_set_weight",Pdp_weyl_set_weight,-1},
@@ -1300,6 +1300,8 @@ LIST *rp;
 	asir_assert(ARG1(arg),O_LIST,"dp_f4_mod_main");
 	asir_assert(ARG2(arg),O_N,"dp_f4_mod_main");
 	f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = QTOS((Q)ARG2(arg));
+	if ( !m )
+		error("dp_f4_mod_main : invalid argument");
 	create_order_spec(ARG3(arg),&ord);
 	dp_f4_mod_main(f,v,m,&ord,rp);
 }
@@ -1320,6 +1322,8 @@ LIST *rp;
 	asir_assert(ARG3(arg),O_N,"dp_gr_mod_main");
 	f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
 	homo = (Num)ARG2(arg); m = QTOS((Q)ARG3(arg));
+	if ( !m )
+		error("dp_gr_mod_main : invalid argument");
 	create_order_spec(ARG4(arg),&ord);
 	dp_gr_mod_main(f,v,homo,m,&ord,rp);
 }
@@ -1361,8 +1365,6 @@ LIST *rp;
 {
 	LIST f,v;
 	Num homo;
-	Q m;
-	int modular;
 	struct order_spec ord;
 
 	asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
@@ -1405,6 +1407,8 @@ LIST *rp;
 	asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
 	asir_assert(ARG2(arg),O_N,"dp_f4_main");
 	f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = QTOS((Q)ARG2(arg));
+	if ( !m )
+		error("dp_weyl_f4_mod_main : invalid argument");
 	create_order_spec(ARG3(arg),&ord);
 	do_weyl = 1;
 	dp_f4_mod_main(f,v,m,&ord,rp);
@@ -1426,6 +1430,8 @@ LIST *rp;
 	asir_assert(ARG3(arg),O_N,"dp_weyl_gr_mod_main");
 	f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
 	homo = (Num)ARG2(arg); m = QTOS((Q)ARG3(arg));
+	if ( !m )
+		error("dp_weyl_gr_mod_main : invalid argument");
 	create_order_spec(ARG4(arg),&ord);
 	do_weyl = 1;
 	dp_gr_mod_main(f,v,homo,m,&ord,rp);