===================================================================
RCS file: /home/cvs/OpenXM/src/kan96xx/Kan/kanExport0.c,v
retrieving revision 1.28
retrieving revision 1.49
diff -u -p -r1.28 -r1.49
--- OpenXM/src/kan96xx/Kan/kanExport0.c	2004/08/31 04:45:42	1.28
+++ OpenXM/src/kan96xx/Kan/kanExport0.c	2015/10/08 11:49:37	1.49
@@ -1,5 +1,7 @@
-/* $OpenXM: OpenXM/src/kan96xx/Kan/kanExport0.c,v 1.27 2004/08/28 07:28:54 takayama Exp $  */
+/* $OpenXM: OpenXM/src/kan96xx/Kan/kanExport0.c,v 1.48 2012/09/16 01:53:08 takayama Exp $  */
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "datatype.h"
 #include "stackm.h"
 #include "extern.h"
@@ -30,7 +32,8 @@ struct object KooAdd(ob1,ob2)
   POLY r;
   int s,i;
   objectp f1,f2,g1,g2;
-  struct object nn,dd;
+  struct object nn = OINIT;
+  struct object dd = OINIT;
   
   switch (Lookup[ob1.tag][ob2.tag]) {
   case SintegerSinteger:
@@ -161,7 +164,8 @@ struct object KooSub(ob1,ob2)
   int s,i;
   objectp f1,f2,g1,g2;
   extern struct coeff *UniversalZero;
-  struct object nn,dd;
+  struct object nn = OINIT;
+  struct object dd = OINIT;
   
   switch (Lookup[ob1.tag][ob2.tag]) {
   case SintegerSinteger:
@@ -292,7 +296,8 @@ struct object KooMult(ob1,ob2)
   POLY r;
   int i,s;
   objectp f1,f2,g1,g2;
-  struct object dd,nn;
+  struct object dd = OINIT;
+  struct object nn = OINIT;
 
   
   switch (Lookup[ob1.tag][ob2.tag]) {
@@ -438,7 +443,7 @@ struct object KoNegate(obj)
 {
   struct object rob = NullObject;
   extern struct ring SmallRing;
-  struct object tob;
+  struct object tob = OINIT;
   switch(obj.tag) {
   case Sinteger:
     rob = obj;
@@ -480,7 +485,7 @@ struct object KoInverse(obj)
   struct object rob = NullObject;
   extern struct coeff *UniversalOne;
   objectp onep;
-  struct object tob;
+  struct object tob = OINIT;
   switch(obj.tag) {
   case Spoly:
     tob.tag = SuniversalNumber;
@@ -546,11 +551,11 @@ struct object KaoMult(aa,bb)
   POLY tmp;
   POLY fik;
   POLY gkj;
-  struct object rob;
+  struct object rob = OINIT;
   int r1,r2;
   int rsize;
-  struct object tob;
-  struct object ob1;
+  struct object tob = OINIT;
+  struct object ob1 = OINIT;
   extern struct ring SmallRing;
 
   m = getoaSize(aa); m2 = getoaSize(bb);
@@ -610,7 +615,9 @@ struct object KaoMult(aa,bb)
   r1 = isMatrix(aa,m,n); r2 = isMatrix(bb,m2,n2);
   if (r1 == -1 || r2 == -1) {
     /* Object multiplication. Elements are not polynomials. */
-    struct object ofik,ogkj,otmp;
+    struct object ofik = OINIT;
+	struct object ogkj = OINIT;
+	struct object otmp = OINIT;
     rob = newObjectArray(m);
     for (i=0; i<m; i++) {
       getoa(rob,i) = newObjectArray(n2);
@@ -685,10 +692,18 @@ KooEqualQ(obj1,obj2)
      struct object obj1;
      struct object obj2;
 {
-  struct object ob;
+  struct object ob = OINIT;
   int i;
+  extern int Verbose;
   if (obj1.tag != obj2.tag) {
     warningKan("KooEqualQ(ob1,ob2): the datatypes of ob1 and ob2  are not same. Returns false (0).\n");
+	if (Verbose & 0x10) {
+	  fprintf(stderr,"obj1(tag:%d)=",obj1.tag);
+	  printObject(obj1,0,stderr);
+	  fprintf(stderr,", obj2(tag:%d)=",obj2.tag);
+	  printObject(obj2,0,stderr);
+	  fprintf(stderr,"\n"); fflush(stderr);
+	}
     return(0);
   }
   switch(obj1.tag) {
@@ -766,7 +781,7 @@ struct object KooGreater(obj1,obj2)
      struct object obj1;
      struct object obj2;
 {
-  struct object ob;
+  struct object ob = OINIT;
   int tt;
   if (obj1.tag != obj2.tag) {
     errorKan1("%s\n","You cannot compare different kinds of objects.");
@@ -800,7 +815,7 @@ struct object KooGreater(obj1,obj2)
   case Sarray:
   {
     int i,m1,m2;
-    struct object rr;
+    struct object rr = OINIT;
     m1 = getoaSize(obj1); m2 = getoaSize(obj2);
     for (i=0; i< (m1>m2?m2:m1); i++) {
       rr=KooGreater(getoa(obj1,i),getoa(obj2,i));
@@ -856,7 +871,7 @@ struct object KooLess(obj1,obj2)
   case Sarray:
   {
     int i,m1,m2;
-    struct object rr;
+    struct object rr = OINIT;
     m1 = getoaSize(obj1); m2 = getoaSize(obj2);
     for (i=0; i< (m1>m2?m2:m1); i++) {
       rr=KooLess(getoa(obj1,i),getoa(obj2,i));
@@ -882,11 +897,12 @@ struct object KdataConversion(obj,key)
 {
   char tmps[128]; /* Assume that double is not more than 128 digits */
   char intstr[100]; /* Assume that int is not more than 100 digits */
-  struct object rob;
+  struct object rob = OINIT;
   extern struct ring *CurrentRingp;
   extern struct ring SmallRing;
   int flag;
-  struct object rob1,rob2;
+  struct object rob1 = OINIT;
+  struct object rob2 = OINIT;
   char *s;
   int i;
   double f;
@@ -919,7 +935,12 @@ struct object KdataConversion(obj,key)
       return(rob);
     }else if (strcmp(key,"poly") == 0) {
       rob = KpoPOLY(ZERO);
+      return rob;
+    }else if (strcmp(key,"array") == 0) {
+      rob = newObjectArray(0);
+      return rob;
     }else{
+      /* fprintf(stderr,"key=%s\n",key); */
       warningKan("Sorry. The data conversion from null to this data type has not supported yet.\n");
     }
     break;
@@ -1015,7 +1036,7 @@ struct object KdataConversion(obj,key)
     if (strcmp(key,"array") == 0) {
       return(rob);
     }else if (strcmp(key,"list") == 0) {
-      rob = *( arrayToList(obj) );
+      rob = KarrayToList(obj);
       return(rob);
     }else if (strcmp(key,"arrayOfPOLY")==0) {
       rob = KpoArrayOfPOLY(arrayToArrayOfPOLY(obj));
@@ -1029,6 +1050,9 @@ struct object KdataConversion(obj,key)
     }else if (strcmp(key,"null") == 0) {
       rob = NullObject;
       return(rob);
+    }else if (strcmp(key,"byteArray") == 0) {
+      rob = newByteArray(getoaSize(obj),obj);
+      return(rob);
     }else {
 	  { /* Automatically maps the elements. */
 		int n,i;
@@ -1108,7 +1132,7 @@ struct object KdataConversion(obj,key)
     break;
   case Slist:
     if (strcmp(key,"array") == 0) {
-      rob = listToArray(&obj);
+      rob = KlistToArray(obj);
       return(rob);
     }
     break;
@@ -1206,23 +1230,31 @@ struct object KdataConversion(obj,key)
       warningKan("Sorryl This type of data conversion of ringp has not supported yet.\n");
     }
     break;
+  case SbyteArray:
+    if (strcmp(key,"array") == 0) {
+      rob = byteArrayToArray(obj);
+      return(rob);
+    } else {
+      warningKan("Sorryl This type of data conversion of ringp has not supported yet.\n");
+    }
+    break;
   default:
     warningKan("Sorry. This type of data conversion has not supported yet.\n");
   }
   return(NullObject);
 }
 
-/* cf. macro to_int */
-struct object Kto_int(struct object ob) {
+/* cf. macro to_int32 */
+struct object Kto_int32(struct object ob) {
   int n,i;
-  struct object otmp;
-  struct object rob;
+  struct object otmp = OINIT;
+  struct object rob = OINIT;
   if (ob.tag == SuniversalNumber) return KdataConversion(ob,"integer");
   if (ob.tag == Sarray) {
 	n = getoaSize(ob);
 	rob = newObjectArray(n);
 	for (i=0; i<n; i++) {
-	  otmp = Kto_int(getoa(ob,i));
+	  otmp = Kto_int32(getoa(ob,i));
 	  putoa(rob,i,otmp);
 	}
 	return rob;
@@ -1234,7 +1266,7 @@ struct object Kto_int(struct object ob) {
 struct object KpoInteger(k)
      int k;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = Sinteger;
   obj.lc.ival = k; obj.rc.ival = 0;
   return(obj);
@@ -1242,7 +1274,7 @@ struct object KpoInteger(k)
 struct object KpoString(s)
      char *s;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = Sdollar;
   obj.lc.str = s; obj.rc.ival = 0;
   return(obj);
@@ -1250,7 +1282,7 @@ struct object KpoString(s)
 struct object KpoPOLY(f)
      POLY f;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = Spoly;
   obj.lc.poly = f; obj.rc.ival = 0;
   return(obj);
@@ -1258,7 +1290,7 @@ struct object KpoPOLY(f)
 struct object KpoArrayOfPOLY(ap)
      struct arrayOfPOLY *ap ;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = SarrayOfPOLY;
   obj.lc.arrayp = ap; obj.rc.ival = 0;
   return(obj);
@@ -1267,7 +1299,7 @@ struct object KpoArrayOfPOLY(ap)
 struct object KpoMatrixOfPOLY(mp)
      struct matrixOfPOLY *mp ;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = SmatrixOfPOLY;
   obj.lc.matrixp = mp; obj.rc.ival = 0;
   return(obj);
@@ -1276,7 +1308,7 @@ struct object KpoMatrixOfPOLY(mp)
 struct object KpoRingp(ringp)
      struct ring *ringp;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = Sring;
   obj.lc.ringp = ringp;
   return(obj);
@@ -1285,7 +1317,7 @@ struct object KpoRingp(ringp)
 struct object KpoUniversalNumber(u)
      struct coeff *u;
 {
-  struct object obj;
+  struct object obj = OINIT;
   obj.tag = SuniversalNumber;
   obj.lc.universalNumber = u;
   return(obj);
@@ -1293,7 +1325,7 @@ struct object KpoUniversalNumber(u)
 struct object KintToUniversalNumber(n)
 	 int n;
 {
-  struct object rob;
+  struct object rob = OINIT;
   extern struct ring SmallRing;
   rob.tag = SuniversalNumber;
   rob.lc.universalNumber = intToCoeff(n,&SmallRing);
@@ -1306,9 +1338,9 @@ struct object arrayOfPOLYToArray(aa)
 {
   POLY *a;
   int size;
-  struct object r;
+  struct object r = OINIT;
   int j;
-  struct object tmp;
+  struct object tmp = OINIT;
 
   size = aa->n; a = aa->array;
   r = newObjectArray(size);
@@ -1323,8 +1355,8 @@ struct object arrayOfPOLYToArray(aa)
 struct object matrixOfPOLYToArray(pmat)
      struct matrixOfPOLY *pmat;
 {
-  struct object r;
-  struct object tmp;
+  struct object r = OINIT;
+  struct object tmp = OINIT;
   int i,j;
   int m,n;
   POLY *mat;
@@ -1347,7 +1379,7 @@ struct arrayOfPOLY *arrayToArrayOfPOLY(oa)
   POLY *a;
   int size;
   int i;
-  struct object tmp;
+  struct object tmp = OINIT;
   struct arrayOfPOLY *ap;
   
   if (oa.tag != Sarray) errorKan1("KarrayToArrayOfPOLY(): %s",
@@ -1375,7 +1407,8 @@ struct matrixOfPOLY *arrayToMatrixOfPOLY(oa)
   int i,j;
   struct matrixOfPOLY *ma;
 
-  struct object tmp,tmp2;
+  struct object tmp = OINIT;
+  struct object tmp2 = OINIT;
   if (oa.tag != Sarray) errorKan1("KarrayToMatrixOfPOLY(): %s",
                                   "Argument is not array\n");
   m = getoaSize(oa);
@@ -1413,8 +1446,8 @@ int objArrayToOrderMatrix(oA,order,n,oasize)
 {
   int size;
   int k,j;
-  struct object tmpOa;
-  struct object obj;
+  struct object tmpOa = OINIT;
+  struct object obj = OINIT;
   if (oA.tag != Sarray) {
     warningKan("The argument should be of the form [ [...] [...] ... [...]].");
     return(-1);
@@ -1499,10 +1532,10 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
         ob4 = Order matrix
         ob5 = [(keyword) value (keyword) value ....]
      */
-#define RP_LIMIT 500
+#define RP_LIMIT 5000
 {
   int i;
-  struct object ob;
+  struct object ob = OINIT;
   int c,l,m,n;
   int cc,ll,mm,nn;
   int p;
@@ -1525,7 +1558,7 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
   extern char *F_mpMult;
   char *fmp_mult_saved;
   char *mpMultName = NULL;
-  struct object rob;
+  struct object rob = OINIT;
   struct ring *savedCurrentRingp;
 
   /* To get the ring structure. */
@@ -1597,7 +1630,7 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
     }
   }
 
-  ob4 = Kto_int(ob4); /* order matrix */
+  ob4 = Kto_int32(ob4); /* order matrix */
   oasize = getoaSize(ob4);
   order = (int *)sGC_malloc(sizeof(int)*((2*n)*oasize+1));
   if (order == (int *)NULL) errorKan1("%s\n","No memory.");
@@ -1627,6 +1660,7 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
   newRingp->cc = cc;
   newRingp->x = xvars;
   newRingp->D = dvars;
+  newRingp->Dsmall = makeDsmall(dvars,n);
   /* You don't need to set order and orderMatrixSize here.
      It was set by setOrder(). */
   setFromTo(newRingp);
@@ -1642,6 +1676,8 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
   newRingp->degreeShiftSize = 0;
   newRingp->degreeShiftN = 0;
   newRingp->degreeShift = NULL;
+  newRingp->partialEcart = 0;
+  newRingp->partialEcartGlobalVarX = NULL;
 
   if (ob5.tag != Sarray || (getoaSize(ob5) % 2) != 0) {
     errorKan1("%s\n","[(keyword) value (keyword) value ....] should be given.");
@@ -1698,8 +1734,8 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
           errorKan1("%s\n","An array of array should be given. (degreeShift)");
         }
         {
-          struct object ods;
-          struct object ods2;
+          struct object ods = OINIT;
+          struct object ods2 = OINIT;
           int dssize,k,j,nn;
           ods=getoa(ob5,i+1);
           if ((getoaSize(ods) < 1) || (getoa(ods,0).tag != Sarray)) {
@@ -1722,6 +1758,36 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
             }
           }
         }
+      } else if (strcmp(KopString(getoa(ob5,i)),"partialEcartGlobalVarX") == 0) {
+        if (getoa(ob5,i+1).tag != Sarray) {
+          errorKan1("%s\n","An array of array should be given. (partialEcart)");
+        }
+        {
+          struct object odv = OINIT;
+          struct object ovv = OINIT;
+          int k,j,nn;
+          char *vname;
+          odv=getoa(ob5,i+1);
+          nn = getoaSize(odv);
+          newRingp->partialEcart = nn;
+          newRingp->partialEcartGlobalVarX = (int *) sGC_malloc(sizeof(int)*nn+1);
+          if (newRingp->partialEcartGlobalVarX == NULL) errorKan1("%s\n","No more memory.");
+          for (j=0; j<nn; j++)
+            (newRingp->partialEcartGlobalVarX)[j] = -1;
+          for (j=0; j<nn; j++) {
+            ovv = getoa(odv,j);
+            if (ovv.tag != Sdollar) errorKan1("%s\n","partialEcartGlobalVarX: string is expected.");
+            vname = KopString(ovv);
+            for (k=0; k<n; k++) {
+              if (strcmp(vname,xvars[k]) == 0) {
+                (newRingp->partialEcartGlobalVarX)[j] = k; break;
+              }else{
+                if (k == n-1) errorKan1("%s\n","partialEcartGlobalVarX: no such variable.");
+              }
+            }
+          }
+        }
+
         switch_function("grade","module1v");
         /* Warning: grading is changed to module1v!! */
       } else {
@@ -1776,8 +1842,8 @@ int KsetUpRing(ob1,ob2,ob3,ob4,ob5)
 struct object KsetVariableNames(struct object ob,struct ring *rp)
 {
   int n,i;
-  struct object ox;
-  struct object otmp;
+  struct object ox = OINIT;
+  struct object otmp = OINIT;
   char **xvars;
   char **dvars;
   if (ob.tag  != Sarray) {
@@ -1822,7 +1888,7 @@ struct object KswitchFunction(ob1,ob2)
      struct object ob1,ob2;
 {
   char *ans ;
-  struct object rob;
+  struct object rob = OINIT;
   int needWarningForAvoidTheSameRing = 0;
   extern int AvoidTheSameRing;
   if ((ob1.tag != Sdollar) || (ob2.tag != Sdollar)) {
@@ -1864,14 +1930,14 @@ struct object KoReplace(of,rule)
      struct object of;
      struct object rule;
 {
-  struct object rob;
+  struct object rob = OINIT;
   POLY f;
   POLY lRule[N0*2];
   POLY rRule[N0*2];
   POLY r;
   int i;
   int n;
-  struct object trule;
+  struct object trule = OINIT;
   
 
   if (rule.tag != Sarray) {
@@ -1927,7 +1993,7 @@ struct object Kparts(f,v)
 {
   POLY ff;
   POLY vv;
-  struct object obj;
+  struct object obj = OINIT;
   struct matrixOfPOLY *co;
   /* check the data type */
   if (f.tag != Spoly || v.tag != Spoly)
@@ -1944,7 +2010,7 @@ struct object Kparts2(f,v)
 {
   POLY ff;
   POLY vv;
-  struct object obj;
+  struct object obj = OINIT;
   struct matrixOfPOLY *co;
   /* check the data type */
   if (f.tag != Spoly || v.tag != Spoly)
@@ -1992,7 +2058,8 @@ struct object Ksp(ob1,ob2)
      struct object ob1,ob2;
 {
   struct spValue sv;
-  struct object rob,cob;
+  struct object rob = OINIT;
+  struct object cob = OINIT;
   POLY f;
   if (ob1.tag != Spoly || ob2.tag != Spoly)
     errorKan1("%s\n","Ksp(): The arguments must be polynomials.");
@@ -2022,7 +2089,7 @@ struct object Keval(obj)
 {
   char *key;
   int size;
-  struct object rob;
+  struct object rob = OINIT;
   rob = NullObject;
   
   if (obj.tag != Sarray)
@@ -2067,8 +2134,8 @@ char *KremoveSpace(str)
 struct object KtoRecords(ob)
      struct object ob;
 {
-  struct object obj;
-  struct object tmp;
+  struct object obj = OINIT;
+  struct object tmp = OINIT;
   int i;
   int size;
   char **argv;
@@ -2164,7 +2231,7 @@ int KtoArgvbyCurryBrace(str,argv,limit)
 }
 
 struct object KstringToArgv(struct object ob) {
-  struct object rob;
+  struct object rob = OINIT;
   char *s;
   int n,wc,i,inblank;
   char **argv;
@@ -2204,6 +2271,56 @@ struct object KstringToArgv(struct object ob) {
   return(rob);
 }
 
+struct object KstringToArgv2(struct object ob,struct object oseparator) {
+  struct object rob = OINIT;
+  char *s;
+  int n,wc,i,inblank;
+  char **argv;
+  int separator;
+  if (ob.tag != Sdollar)
+    errorKan1("%s\n","KstringToArgv2(): the argument must be a string.");
+  if (oseparator.tag == Sinteger) {
+	separator = KopInteger(oseparator);
+  }else if (oseparator.tag == Sdollar) {
+	s = KopString(oseparator);
+	separator=s[0];
+  }else {
+    errorKan1("%s\n","KstringToArgv2(ob,separator):the argument must be strings.");
+  }
+  n = strlen(KopString(ob));
+  s = (char *) sGC_malloc(sizeof(char)*(n+2));
+  if (s == NULL) errorKan1("%s\n","KstringToArgv(): No memory.");
+  strcpy(s,KopString(ob));
+  inblank = 1;  wc = 0; 
+  for (i=0; i<n; i++) {
+    if (inblank && (s[i] != separator)) {
+      wc++; inblank = 0;
+    }else if ((!inblank) && (s[i] == separator)) {
+      inblank = 1;
+    }
+  }
+  argv = (char **) sGC_malloc(sizeof(char *)*(wc+2));
+  argv[0] = NULL;
+  inblank = 1;  wc = 0; 
+  for (i=0; i<n; i++) {
+    if (inblank && (s[i] != separator)) {
+      argv[wc] = &(s[i]); argv[wc+1]=NULL;
+      wc++; inblank = 0;
+    }else if ((inblank == 0) && (s[i] == separator)) {
+      inblank = 1; s[i] = 0;
+    }else if (inblank && (s[i] == separator)) {
+      s[i] = 0;
+    }
+  }
+
+  rob = newObjectArray(wc);
+  for (i=0; i<wc; i++) {
+    putoa(rob,i,KpoString(argv[i]));
+    /* printf("%s\n",argv[i]); */
+  }
+  return(rob);
+}
+
 static void checkDuplicateName(xvars,dvars,n)
      char *xvars[];
      char *dvars[];
@@ -2226,7 +2343,7 @@ static void checkDuplicateName(xvars,dvars,n)
 }
 
 struct object KooPower(struct object ob1,struct object ob2) {
-  struct object rob;
+  struct object rob = OINIT;
   /* Bug. It has not yet been implemented. */
   if (QuoteMode) {
     rob = powerTree(ob1,ob2);
@@ -2348,9 +2465,11 @@ struct object KgbExtension(struct object obj)
 {
   char *key;
   int size;
-  struct object keyo;
+  struct object keyo = OINIT;
   struct object rob = NullObject;
-  struct object obj1,obj2,obj3;
+  struct object obj1 = OINIT;
+  struct object obj2 = OINIT;
+  struct object obj3 = OINIT;
   POLY f1;
   POLY f2;
   POLY f3;
@@ -2519,9 +2638,12 @@ struct object KmpzExtension(struct object obj)
 {
   char *key;
   int size;
-  struct object keyo;
+  struct object keyo = OINIT;
   struct object rob = NullObject;
-  struct object obj0,obj1,obj2,obj3;
+  struct object obj0 = OINIT;
+  struct object obj1 = OINIT;
+  struct object obj2 = OINIT;
+  struct object obj3 = OINIT;
   MP_INT *f;
   MP_INT *g;
   MP_INT *h;
@@ -2750,7 +2872,7 @@ struct object KmpzExtension(struct object obj)
 /** : context   */
 struct object KnewContext(struct object superObj,char *name) {
   struct context *cp;
-  struct object ob;
+  struct object ob = OINIT;
   if (superObj.tag != Sclass) {
     errorKan1("%s\n","The argument of KnewContext must be a Class.Context");
   }
@@ -2769,10 +2891,10 @@ struct object KcreateClassIncetance(struct object ob1,
                                     struct object ob3)
 {
   /* [class-tag super-obj] size [class-tag]  cclass */
-  struct object ob4;
+  struct object ob4 = OINIT;
   int size,size2,i;
-  struct object ob5;
-  struct object rob;
+  struct object ob5 = OINIT;
+  struct object rob = OINIT;
   
   if (ob1.tag != Sarray)
     errorKan1("%s\n","cclass: The first argument must be an array.");
@@ -2825,8 +2947,8 @@ struct object KpoDouble(double a) {
 double toDouble0(struct object ob) {
   double r;
   int r3;
-  struct object ob2;
-  struct object ob3;
+  struct object ob2 = OINIT;
+  struct object ob3 = OINIT;
   switch(ob.tag) {
   case Sinteger:
     return( (double) (KopInteger(ob)) );
@@ -2855,7 +2977,7 @@ double toDouble0(struct object ob) {
 }
 
 struct object KpoGradedPolySet(struct gradedPolySet *grD) {
-  struct object rob;
+  struct object rob = OINIT;
   rob.tag = Sclass;
   rob.lc.ival = CLASSNAME_GradedPolySet;
   rob.rc.voidp = (void *) grD;
@@ -2872,10 +2994,14 @@ static char *getspace0(int a) {
   return(s);
 }
 struct object KdefaultPolyRing(struct object ob) {
-  struct object rob;
+  struct object rob = OINIT;
   int i,j,k,n;
-  struct object ob1,ob2,ob3,ob4,ob5;
-  struct object t1;
+  struct object ob1 = OINIT;
+  struct object ob2 = OINIT;
+  struct object ob3 = OINIT;
+  struct object ob4 = OINIT;
+  struct object ob5 = OINIT;
+  struct object t1 = OINIT;
   char *s1;
   extern struct ring *CurrentRingp;
   static struct ring *a[N0];
@@ -2946,11 +3072,244 @@ struct object KdefaultPolyRing(struct object ob) {
 }
   
   
+struct object Krest(struct object ob) {
+  struct object rob;
+  struct object *op;
+  int n,i;
+  if (ob.tag == Sarray) {
+    n = getoaSize(ob);
+    if (n == 0) return ob;
+    rob = newObjectArray(n-1);
+    for (i=1; i<n; i++) {
+      putoa(rob,i-1,getoa(ob,i));
+    }
+    return rob;
+  }else if ((ob.tag == Slist) || (ob.tag == Snull)) {
+    return Kcdr(ob);
+  }else{
+    errorKan1("%s\n","Krest(ob): ob must be an array or a list.");
+  }
+}
+struct object Kjoin(struct object ob1, struct object ob2) {
+  struct object rob = OINIT;
+  int n1,n2,i;
+  if ((ob1.tag == Sarray) &&  (ob2.tag == Sarray)) {
+    n1 = getoaSize(ob1); n2 = getoaSize(ob2);
+    rob = newObjectArray(n1+n2);
+    for (i=0; i<n1; i++) {
+      putoa(rob,i,getoa(ob1,i));
+    }
+    for (i=n1; i<n1+n2; i++) {
+      putoa(rob,i,getoa(ob2,i-n1));
+    }
+    return rob;
+  }else if ((ob1.tag == Slist) || (ob1.tag == Snull)) {
+	if ((ob2.tag == Slist) || (ob2.tag == Snull)) {
+	  return KvJoin(ob1,ob2);
+	}else{
+	  errorKan1("%s\n","Kjoin: both argument must be a list.");
+	}
+  }else{
+    errorKan1("%s\n","Kjoin: arguments must be arrays.");
+  }
+}
   
-  
+struct object Kget(struct object ob1, struct object ob2) {
+  struct object rob = OINIT;
+  struct object tob = OINIT;
+  int i,j,size,n;
+  if (ob2.tag == Sinteger) {
+    i =ob2.lc.ival;
+  }else if (ob2.tag == SuniversalNumber) {
+    i = KopInteger(KdataConversion(ob2,"integer"));
+  }else if (ob2.tag == Sarray) {
+    n = getoaSize(ob2);
+    if (n == 0) return ob1;
+    rob = ob1;
+    for (i=0; i<n; i++) {
+      rob=Kget(rob,getoa(ob2,i));
+    }
+    return rob;
+  }
+  if (ob1.tag == Sarray) {
+    size = getoaSize(ob1);
+    if ((0 <= i) && (i<size)) {
+      return(getoa(ob1,i));
+    }else{
+      errorKan1("%s\n","Kget: Index is out of bound. (get)\n");
+    }
+  }else if (ob1.tag == Slist) {
+    rob = NullObject;
+    if (i < 0) errorKan1("%s\n","Kget: Index is negative. (get)"); 
+    for (j=0; j<i; j++) {
+      rob = Kcdr(ob1);
+      if ((ob1.tag == Snull) && (rob.tag == Snull)) {
+        errorKan1("%s\n","Kget: Index is out of bound. (get) cdr of null list.\n");
+      }
+      ob1 = rob;
+    }
+    return Kcar(ob1);
+  } else if (ob1.tag == SbyteArray) {
+    size = getByteArraySize(ob1);
+    if ((0 <= i) && (i<size)) {
+      return(KpoInteger(KopByteArray(ob1)[i]));
+    }else{
+      errorKan1("%s\n","Kget: Index is out of bound. (get)\n");
+    }
+  } else if (ob1.tag == Sdollar) {
+    unsigned char *sss;
+    sss = (unsigned char *) KopString(ob1);
+    size = strlen(sss);
+    if ((0 <= i) && (i<size)) {
+      return(KpoInteger(sss[i]));
+    }else{
+      errorKan1("%s\n","Kget: Index is out of bound. (get)\n");
+    }
 
+  }else errorKan1("%s\n","Kget: argument must be an array or a list.");
+}
+
+/* Constructor of byteArray */
+struct object newByteArray(int size,struct object obj) {
+  unsigned char *ba;
+  unsigned char *ba2;
+  struct object rob = OINIT;
+  struct object tob = OINIT;
+  int i,n;
+  ba = NULL;
+  if (size > 0) {
+    ba = (unsigned char *) sGC_malloc(size);
+    if (ba == NULL) errorKan1("%s\n","No more memory.");
+  }
+  rob.tag = SbyteArray; rob.lc.bytes = ba; rob.rc.ival = size;
+  if (obj.tag == SbyteArray) {
+    n = getByteArraySize(obj);
+    ba2 = KopByteArray(obj);
+    for (i=0; i<(n<size?n:size); i++) {
+      ba[i] = ba2[i];
+    }
+    for (i=n; i<size; i++) ba[i] = 0;
+    return rob;
+  }else if (obj.tag == Sarray) {
+    n = getoaSize(obj);
+    for (i=0; i<n; i++) {
+      tob = getoa(obj,i);
+      tob = Kto_int32(tob);
+      if (tob.tag != Sinteger) errorKan1("%s\n","newByteArray: array is not an array of integer or universalNumber.");
+      ba[i] = (unsigned char) KopInteger(tob);
+    }
+    for (i=n; i<size; i++) ba[i] = 0;
+    return rob;
+  }else{
+    for (i=0; i<size; i++) ba[i] = 0;
+    return rob;
+  }
+}
+struct object newByteArrayFromStr(char *s,int size) {
+  unsigned char *ba;
+  struct object rob = OINIT;
+  int i;
+  ba = NULL;
+  if (size > 0) {
+    ba = (unsigned char *) sGC_malloc(size);
+    if (ba == NULL) errorKan1("%s\n","No more memory.");
+  }
+  rob.tag = SbyteArray; rob.lc.bytes = ba; rob.rc.ival = size;
+  for (i=0; i<size; i++) {
+	ba[i] = (char) s[i];
+  }
+  return(rob);
+}
+
+struct object byteArrayToArray(struct object obj) {
+  int n,i; unsigned char *ba;
+  struct object rob = OINIT;
+  if (obj.tag != SbyteArray) errorKan1("%s\n","byteArrayToArray: argument is not an byteArray.");
+  n = getByteArraySize(obj);
+  rob = newObjectArray(n);
+  ba = KopByteArray(obj);
+  for (i=0; i<n; i++) putoa(rob,i,KpoInteger((int) ba[i]));
+  return rob;
+}
+
+struct object KgetAttributeList(struct object ob){
+  struct object rob = OINIT;
+  if (ob.attr != NULL) rob = *(ob.attr);
+  else rob = NullObject;
+  return rob;
+}
+struct object  KsetAttributeList(struct object ob,struct object attr) {
+  ob.attr = newObject();
+  *(ob.attr) = attr;
+  return ob;
+}
+struct object KgetAttribute(struct object ob,struct object key) {
+  struct object rob = OINIT;
+  struct object alist = OINIT;
+  int n,i;
+  struct object tob = OINIT;
+  char *s;
+  rob = NullObject;
+  if (ob.attr == NULL) return rob;
+  alist = *(ob.attr);
+  if (alist.tag != Sarray) return rob;
+  if (key.tag != Sdollar) return rob;
+  s = KopString(key);
+  n = getoaSize(alist);
+  for (i = 0; i < n; i += 2) {
+    tob = getoa(alist,i);
+    if (tob.tag == Sdollar) {
+      if (strcmp(KopString(tob),s) == 0) {
+        if (i+1 < n) rob = getoa(alist,i+1);
+        return rob;
+      }
+    }
+  }
+  return rob;
+}
+/*  ob (key) (value) setAttribute /ob set. They are not destructive. */
+struct object KsetAttribute(struct object ob,struct object key,struct object value) {
+  struct object rob = OINIT;
+  struct object alist = OINIT;
+  int n,i;
+  char *s = "";
+  struct object tob = OINIT;
+  rob = ob;
+  if (ob.attr == NULL) {
+    rob.attr = newObject();
+    *(rob.attr) = newObjectArray(2);
+    putoa((*(rob.attr)),0,key);
+    putoa((*(rob.attr)),1,value);
+    return rob;
+  }
+  alist = *(ob.attr);
+  if (alist.tag != Sarray) return rob;
+  if (key.tag != Sdollar) {
+    s = KopString(key);
+  }
+  n = getoaSize(alist);
+  for (i = 0; i < n; i += 2) {
+    tob = getoa(alist,i);
+    if (tob.tag == Sdollar) {
+      if (strcmp(KopString(tob),s) == 0) {
+        if (i+1 < n) putoa(alist,i+1,value);
+        return rob;
+      }
+    }
+  }
+
+  rob.attr = newObject();
+  *(rob.attr) = newObjectArray(n+2);
+  for (i=0; i<n; i++) {
+    putoa((*(rob.attr)),i,getoa((*(ob.attr)),i));
+  }
+  putoa((*(rob.attr)),n,key);
+  putoa((*(rob.attr)),n+1,value);
+  return rob;
+}
+
 /******************************************************************
-     error handler
+     Error handler
 ******************************************************************/
 
 errorKan1(str,message)
@@ -2960,7 +3319,9 @@ errorKan1(str,message)
   extern char *GotoLabel;
   extern int GotoP;
   extern int ErrorMessageMode;
+  extern int RestrictedMode, RestrictedMode_saved;
   char tmpc[1024];
+  RestrictedMode = RestrictedMode_saved;
   cancelAlarm();
   if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {
     sprintf(tmpc,"\nERROR(kanExport[0|1].c): ");
@@ -2972,6 +3333,7 @@ errorKan1(str,message)
   if (ErrorMessageMode != 1) {
     fprintf(stderr,"\nERROR(kanExport[0|1].c): ");
     fprintf(stderr,str,message);
+    (void) traceShowStack(); traceClearStack();
   }
   /* fprintf(stderr,"Hello "); */
   if (GotoP) {
@@ -2982,9 +3344,9 @@ errorKan1(str,message)
   stdOperandStack(); contextControl(CCRESTORE);
   /* fprintf(stderr,"Now. Long jump!\n"); */
 #if defined(__CYGWIN__)
-  siglongjmp(EnvOfStackMachine,1);
+  MYSIGLONGJMP(EnvOfStackMachine,1);
 #else
-  longjmp(EnvOfStackMachine,1);
+  MYLONGJMP(EnvOfStackMachine,1);
 #endif
 }