diff --git a/src/TLV8.cpp b/src/TLV8.cpp
index a486136..2766490 100644
--- a/src/TLV8.cpp
+++ b/src/TLV8.cpp
@@ -209,6 +209,15 @@ int TLV8::unpack(uint8_t *buf, size_t bufSize){
   return(unpackPhase);
 }
 
+/////////////////////////////////////
+
+int TLV8::unpack(TLV8_it it){
+  
+  if(it==end())
+    return(0);
+    
+  return(unpack(*it,(*it).len));
+}
 
 /////////////////////////////////////
 
diff --git a/src/TLV8.h b/src/TLV8.h
index 5985e4d..5240ee6 100644
--- a/src/TLV8.h
+++ b/src/TLV8.h
@@ -92,7 +92,7 @@ class TLV8 : public std::list<tlv8_t, Mallocator<tlv8_t>> {
   size_t pack_size(){return(pack_size(begin(), end()));}
 
   void pack_init(TLV8_it it1, TLV8_it it2){currentPackIt=it1; endPackIt=it2; currentPackPhase=0;}
-  void pack_init(TLV8_it it1){pack_init(it1, it1++);}
+  void pack_init(TLV8_it it1){pack_init(it1, std::next(it1));}
   void pack_init(){pack_init(begin(),end());}
   
   size_t pack(uint8_t *buf, size_t bufSize);
@@ -101,15 +101,16 @@ class TLV8 : public std::list<tlv8_t, Mallocator<tlv8_t>> {
   const char *getName(uint8_t tag);
   
   void print(TLV8_it it1, TLV8_it it2);
-  void print(TLV8_it it1){print(it1, it1++);}
+  void print(TLV8_it it1){print(it1, std::next(it1));}
   void print(){print(begin(), end());}
 
   void osprint(std::ostream& os, TLV8_it it1, TLV8_it it2);
-  void osprint(std::ostream& os, TLV8_it it1){osprint(os, it1, it1++);}
+  void osprint(std::ostream& os, TLV8_it it1){osprint(os, it1, std::next(it1));}
   void osprint(std::ostream& os){osprint(os, begin(), end());}
 
   int unpack(uint8_t *buf, size_t bufSize);
-
+  int unpack(TLV8_it it);
+  
   void wipe(){std::list<tlv8_t, Mallocator<tlv8_t>>().swap(*this);}
   
 };