diff --git a/libs/main/containers/pivector.h b/libs/main/containers/pivector.h
index 742b0657..0b71e48e 100644
--- a/libs/main/containers/pivector.h
+++ b/libs/main/containers/pivector.h
@@ -224,6 +224,12 @@ public:
 		PIVector<T> * parent;
 		size_t pos;
 	public:
+		typedef T value_type;
+		typedef T* pointer;
+		typedef T& reference;
+		typedef std::ptrdiff_t difference_type;
+		typedef std::random_access_iterator_tag iterator_category;
+
 		inline iterator(): parent(0), pos(0) {}
 		inline T & operator *() {return (*parent)[pos];}
 		inline const T & operator *() const {return (*parent)[pos];}
@@ -261,6 +267,12 @@ public:
 		const PIVector<T> * parent;
 		size_t pos;
 	public:
+		typedef T value_type;
+		typedef T* pointer;
+		typedef T& reference;
+		typedef std::ptrdiff_t difference_type;
+		typedef std::random_access_iterator_tag iterator_category;
+
 		inline const_iterator(): parent(0), pos(0) {}
 		inline const T & operator *() const {return (*parent)[pos];}
 		inline const T & operator->() {return (*parent)[pos];}
@@ -297,6 +309,12 @@ public:
 		PIVector<T> * parent;
 		size_t pos;
 	public:
+		typedef T value_type;
+		typedef T* pointer;
+		typedef T& reference;
+		typedef std::ptrdiff_t difference_type;
+		typedef std::random_access_iterator_tag iterator_category;
+
 		inline reverse_iterator(): parent(0), pos(0) {}
 		inline T & operator *() {return (*parent)[pos];}
 		inline const T & operator *() const {return (*parent)[pos];}
@@ -315,6 +333,12 @@ public:
 		const PIVector<T> * parent;
 		size_t pos;
 	public:
+		typedef T value_type;
+		typedef T* pointer;
+		typedef T& reference;
+		typedef std::ptrdiff_t difference_type;
+		typedef std::random_access_iterator_tag iterator_category;
+
 		inline const_reverse_iterator(): parent(0), pos(0) {}
 		inline const T & operator *() const {return (*parent)[pos];}
 		inline void operator ++() {--pos;}