diff --git a/ZCppMain/ZMainHead.H b/ZCppMain/ZMainHead.H
index e225819..ccb73ca 100644
--- a/ZCppMain/ZMainHead.H
+++ b/ZCppMain/ZMainHead.H
@@ -3765,6 +3765,57 @@ namespace ZNsMain
     class ZCFreeAllocBase*/
 
 
+    namespace ZNsIFace
+    {
+
+        // 자료 구조에서 자유 기억 공간을 구현하는 interface
+
+        class ZIFreeHeap
+        {
+        public:
+
+            template
+                <typename TTypeLink, typename TTypSize=ZTypLong>
+            class ZtIMain
+            {
+            public:
+                void RecvFreeIn(TTypeLink* AP_CutLink){}
+                void RecvFreeIn ////////////////////////
+                    (
+                        TTypeLink* AP_CutHead ,
+                        TTypeLink* AP_CutTail ,
+                        TTypSize   AL_CutCnt
+                    )
+                { } ////////////////////////////////////
+
+
+                TTypeLink* SendFreeOut(){}
+                void       SendFreeOut /////////////////
+                    (
+                        TTypeLink*& APR_NewHead ,
+                        TTypeLink*& APR_NewTail ,
+                        TTypSize    AL_NeedCnt
+                    )
+                { } ////////////////////////////////////
+
+
+                void DeleteHeap(){}
+
+            public:
+            };/*
+            template
+                <typename TTypeLink, typename TTypSize=ZTypLong>
+            class ZtIMain */
+
+        public:
+        };/*
+        class ZIFreeHeap*/
+
+
+    }/*
+    namespace ZNsIFace*/
+
+
     // 자유 기억 공간을 총괄하는 단방향 연결 리스트
 
     class ZCHeapAllocList
@@ -3993,7 +4044,8 @@ namespace ZNsMain
         TypeData& mr_TypeData;
     public   :
 
-        ZtCObjPtr(TType& AR_CData) : mr_TypeData(AR_CData){}
+        ZtCObjPtr(TType&     AR_CData) : mr_TypeData(AR_CData          ){}
+        ZtCObjPtr(ZtCObjPtr& AR_Rhs  ) : mr_TypeData(AR_Rhs.mr_TypeData){}
 
         TypeData* operator->(){return &mr_TypeData;}
         TypeData& operator* (){return  mr_TypeData;}
diff --git a/ZCppMain/ZtCObjList.H b/ZCppMain/ZtCObjList.H
index cad3b7d..103c145 100644
--- a/ZCppMain/ZtCObjList.H
+++ b/ZCppMain/ZtCObjList.H
@@ -58,6 +58,7 @@ namespace ZNsMain
         typedef const ZCIterator const_iterator;
     public:
 
+
         class ZCLink : public TypeAlloc
         {
         public :
@@ -748,7 +749,7 @@ namespace ZNsMain
             }
             else if(ml_Size<=rhs.ml_Size)
             {
-                AddDefault(rhs.ml_Size-ml_Size,ml_Size+1);
+                AddDefault(rhs.ml_Size-ml_Size, ml_Size+1);
 
                 ZCLink* pRhsLink=rhs.mp_HeadLink;
                 ZCLink* pLhsLink=    mp_HeadLink;
@@ -1034,27 +1035,27 @@ namespace ZNsMain
 
         ZtCObjList& DeleteAll()
         {
-            if(mp_HeadLink!=0)
+            if(mp_HeadLink==0) return *this;
+
+            OnDelete /*============================*/
+                (
+                    mp_HeadLink             , 1 ,
+                    mp_HeadLink->mp_PrevLink, ml_Size
+                );
+            /*=====================================*/
+
+            ZCLink* VP_DelLink=0 ;
+
+            do ///////////////////
             {
-                OnDelete(
-                    mp_HeadLink, 1, mp_HeadLink->mp_PrevLink, ml_Size);
+                VP_DelLink =mp_HeadLink ;
+                mp_HeadLink=mp_HeadLink->mp_NextLink ;
 
-                ZCLink* VP_DelLink=0;
+                delete VP_DelLink;
+            }
+            while(--ml_Size>0);
 
-                do ////
-                {
-                    VP_DelLink =mp_HeadLink;
-                    mp_HeadLink=mp_HeadLink->mp_NextLink ;
-
-                    delete VP_DelLink;
-                }
-                while(--ml_Size>0);
-
-                mp_HeadLink =0;
-            }/*
-            if(mp_HeadLink!=0)*/
-
-            return *this;
+            mp_HeadLink =0;  return *this;
         }/*
         ZtCObjList& DeleteAll()*/
 
@@ -1168,7 +1169,7 @@ namespace ZNsMain
         {
             if(AL_DefaultSize<1 || AL_AddPos<1 || AL_AddPos>ml_Size+1)
                 return 0;
-            //////////////////////////////////////////////////////////
+            /*======================================================*/
 
             ZtCObjList VO_StoreList;  MakeDefault(
                 AL_DefaultSize, VO_StoreList);