diff --git a/ZCppMain/ZMainHead.H b/ZCppMain/ZMainHead.H
index d789f06..5e31ed3 100644
--- a/ZCppMain/ZMainHead.H
+++ b/ZCppMain/ZMainHead.H
@@ -721,10 +721,11 @@ namespace ZNsMain
     namespace ZNsEnum*/
 
 
-    template<typename TTypeChar, typename TTypeLength> int GetCompareCode(
+    template<typename TTypeChar, typename TTypeLength> ZTypIntE GetCompareCode
+    (
         const TTypeChar* ApcLeft , TTypeLength AI_LeftLength ,
         const TTypeChar* ApcRight, TTypeLength AI_RightLength
-    ) /*################################################################*/
+    ) /*####################################################################*/
     {
         if(AI_LeftLength<1 && AI_RightLength<1) return ZNsEnum::ZECompareResult_Equal;
 
@@ -743,10 +744,11 @@ namespace ZNsMain
 
         return ZNsEnum::ZECompareResult_Equal;
     }/*
-    template<typename TTypeChar, typename TTypeLength> int GetCompareCode(
+    template<typename TTypeChar, typename TTypeLength> ZTypIntE GetCompareCode
+    (
         const TTypeChar* ApcLeft , TTypeLength AI_LeftLength,
         const TTypeChar* ApcRight, TTypeLength AI_RightLength
-    ) ##################################################################*/
+    ) ######################################################################*/
 
 
     namespace ZNsType
@@ -975,6 +977,59 @@ namespace ZNsMain
     namespace ZNsType*/
 
 
+    /*  어떤 변수를 강제적으로 참조로 인식하게 하는 클래스. 인수를 참조로
+        넘어가게 하고 싶을 때 사용한다. class ZtCCheckRef 에서 사용하고 있다.
+        -- 2021-04-10 16:15
+    */
+    template<typename TType> class ZtCRef
+    {
+    public :
+        typedef TType& TypeData;
+        typedef TType  TypeRaw ;
+    private:
+        TypeData mr_Data;
+    public :
+        ZtCRef(TypeData AR_TypeData) : mr_Data(AR_TypeData){}
+    public :
+        TypeData GetData(){return mr_Data;}
+    };/*
+    template<typename TType> class ZtCRef*/
+
+
+    /*  template 인수에 ZtCRef 가 있으면, 해당 값을 참조로 인식하고
+        그렇지 않으면, 일반적인 복사해서 전달되는 값으로 인식한다.
+        -- 2021-04-10 16:15
+    */
+    template<typename TType> class ZtCCheckRef
+    {
+    public :
+        typedef TType TypeData ;
+        typedef TType  TypeRaw ;
+    private:
+        TypeData mr_Data;
+    public :
+        ZtCCheckRef(TypeData AR_TypeData) : mr_Data(AR_TypeData){}
+    public :
+        TypeData GetData(){return mr_Data;}
+    };/*
+    template<typename TType> class ZtCCheckRef*/
+
+    /*  ZtCRef 전문화 */
+    template<typename TType> class ZtCCheckRef< ZtCRef<TType> >
+    {
+    public :
+        typedef TType& TypeData;
+        typedef TType  TypeRaw ;
+    private:
+        TypeData mr_Data;
+    public :
+        ZtCCheckRef(TypeData AR_TypeData) : mr_Data(AR_TypeData){}
+    public :
+        TypeData GetData(){return mr_Data;}
+    };/*
+    template<typename TType> class ZtCCheckRef< ZtCRef<TType> >*/
+
+
     template<typename TClassExec> class ZtCArguBind
     {
     public:
diff --git a/ZCppMain/test.cpp b/ZCppMain/test.cpp
index e1902f3..968e471 100644
--- a/ZCppMain/test.cpp
+++ b/ZCppMain/test.cpp
@@ -85,6 +85,15 @@ int main(int ArgiCnt, char** AppArgu)
     HereInt2 myi2= &myi1;
     HereInt3 myi3= myi1 ;  myi3=123;
 
+    ZtCRef<int> myref(myi1);
+    ZtCCheckRef< int         > myrefcheck1(myi1);  myrefcheck1.GetData();
+    ZtCCheckRef< ZtCRef<int> > myrefcheck2(myi1);  myrefcheck2.GetData();
+
+    myi1=4321;
+
+    cout<<"# myrefcheck1.GetData()="<<myrefcheck1.GetData()<<endl;
+    cout<<"# myrefcheck2.GetData()="<<myrefcheck2.GetData()<<endl;
+
     cout<<"# HereInt1      ="<< typeid(myi1).name()<<endl;
     cout<<"# HereInt2 int* ="<< typeid(myi2).name()<<endl;
     cout<<"# HereInt3 int& ="<< typeid(myi3).name()<<endl;