===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2018/builtin/dp.c,v
retrieving revision 1.11
retrieving revision 1.13
diff -u -p -r1.11 -r1.13
--- OpenXM_contrib2/asir2018/builtin/dp.c	2019/09/04 01:12:02	1.11
+++ OpenXM_contrib2/asir2018/builtin/dp.c	2019/09/05 08:49:43	1.13
@@ -45,7 +45,7 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp.c,v 1.10 2019/08/28 23:27:33 noro Exp $
+ * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp.c,v 1.12 2019/09/04 05:32:10 noro Exp $
 */
 #include "ca.h"
 #include "base.h"
@@ -91,7 +91,7 @@ void Pdp_gr_checklist();
 void Pdp_ltod(),Pdpv_ord(),Pdpv_ht(),Pdpv_hm(),Pdpv_hc();
 void Pdpm_ltod(),Pdpm_dtol(),Pdpm_set_schreyer(),Pdpm_nf(),Pdpm_weyl_nf(),Pdpm_sp(),Pdpm_weyl_sp(),Pdpm_nf_and_quotient();
 void Pdpm_hm(),Pdpm_ht(),Pdpm_hc(),Pdpm_hp(),Pdpm_rest(),Pdpm_shift(),Pdpm_split(),Pdpm_sort(),Pdpm_dptodpm(),Pdpm_redble();
-void Pdpm_schreyer_base();
+void Pdpm_schreyer_base(),Pdpm_simplify_syz();
 
 void Pdp_weyl_red();
 void Pdp_weyl_sp();
@@ -326,6 +326,7 @@ struct ftab dp_supp_tab[] = {
   {"dp_mono_raddec",Pdp_mono_raddec,2},
   {"dp_mono_reduce",Pdp_mono_reduce,2},
   {"dpm_schreyer_base",Pdpm_schreyer_base,1},
+  {"dpm_simplify_syz",Pdpm_simplify_syz,2},
 
   {"dp_rref2",Pdp_rref2,2},
   {"sumi_updatepairs",Psumi_updatepairs,3},
@@ -1878,6 +1879,21 @@ void Pdpm_schreyer_base(NODE arg,LIST *rp)
   dpm_schreyer_base((LIST)ARG0(arg),rp);
 }
 
+void dpm_simplify_syz(LIST m,LIST s,LIST *m1,LIST *s1);
+
+void Pdpm_simplify_syz(NODE arg,LIST *rp)
+{
+  LIST s1,m1;
+  NODE t;
+
+  asir_assert(ARG0(arg),O_LIST,"dpm_simplify_syz");
+  asir_assert(ARG1(arg),O_LIST,"dpm_simplify_syz");
+  dpm_simplify_syz((LIST)ARG0(arg),(LIST)ARG1(arg),&s1,&m1);
+  t = mknode(2,s1,m1);
+  MKLIST(*rp,t);
+}
+
+
 void Pdp_red_mod(NODE arg,LIST *rp)
 {
   DP h,r;
@@ -3990,15 +4006,25 @@ void Pdpm_split(NODE arg,LIST *rp)
 }
 
 
-void Pdpm_hc(NODE arg,Obj *rp)
+void Pdpm_hc(NODE arg,DP *rp)
 {
+  DPM p;
+  DP d;
+  MP m;
+
   asir_assert(ARG0(arg),O_DPM,"dpm_hc");
   if ( !ARG0(arg) )
     *rp = 0;
-  else
-    *rp = BDY((DPM)ARG0(arg))->c;
+  else {
+    p = (DPM)ARG0(arg);
+    NEWMP(m);
+    m->dl = BDY(p)->dl;
+    m->c = BDY(p)->c;
+    NEXT(m) = 0;
+    MKDP(NV(p),m,d); d->sugar = p->sugar;
+    *rp = d;
+  }
 }
-
 
 void Pdpv_ht(NODE arg,LIST *rp)
 {