increment/decrement; use pointer

pr4.cpp

@@ -39,20 +39,21 @@ public:
     static int Length(const char* str) //static because method is not using object state and don`t need access to class members
     {
         int length = 0;
-        while (str[length] != '\0')
+        while (*str != '\0')
         {
             length++;
+            str++;
         }
-        return length;// + 1; // Include \0
+        return length;
     }
 
     static void CopyString(char* destination, const char* source, int length) //static because method is not using object state and don`t need access to class members
     {
-        for (int i = 0; i < length; i++)
+        while (length--)
         {
-            destination[i] = source[i];
+            *destination++ = *source++;
         }
-        destination[length] = '\0';
+        *destination = '\0';
     }
 
     int Length() const { return len; }