diff --git a/debug/PhundrakSTL b/debug/PhundrakSTL
index 8ee3a1e..db2daf9 100755
Binary files a/debug/PhundrakSTL and b/debug/PhundrakSTL differ
diff --git a/src/list.hh b/src/list.hh
index 1ec587d..12ffe7f 100644
--- a/src/list.hh
+++ b/src/list.hh
@@ -1,4 +1,5 @@
 #include <cstdlib>
+#include <algorithm>
 #include <memory>
 #include <utility>
 
@@ -7,37 +8,48 @@ namespace phundrak {
 using size_type = size_t;
 
 template <class T, class Allocator = std::allocator<T>> class list {
+
 private:
   struct cell {
     cell() = default;
+    explicit cell(const T& value) : x{value}, p{nullptr}, n{nullptr} {}
+    explicit cell(T&& value) : x{value}, p{nullptr}, n{nullptr} {}
     cell *p;
     cell *n;
     T x;
   };
+
   cell *sentry;
+  const Allocator alloc_;
 
 public:
   class iterator;
   class const_iterator;
+  class reverse_iterator;
+  class const_reverse_iterator;
 
-  // Member types //////////////////////////////////////////////////////////////
+  /////////////////////////////////////////////////////////////////////////////
+  //                             Member functions                            //
+  /////////////////////////////////////////////////////////////////////////////
+
+  // Constructors /////////////////////////////////////////////////////////////
 
   list() : list{Allocator()}, sentry{new cell} {}
 
-  explicit list(const Allocator &alloc) {
-    sentry = new cell;
+  explicit list(const Allocator &alloc) : alloc_(alloc) {
+    sentry = new cell{};
     sentry->p = sentry;
     sentry->n = sentry;
   }
 
   list(size_type count, const T &value, const Allocator &alloc = Allocator())
-      : list(alloc) {
+      : list(alloc), alloc_{alloc} {
     while (size() < count)
       push_back(value);
   }
 
   explicit list(size_type count, const Allocator &alloc = Allocator())
-      : list(alloc) {
+      : list(alloc), alloc_{alloc} {
     while (size() < count)
       push_back(T());
   }
@@ -59,7 +71,10 @@ public:
       push_back(elem);
   }
 
-  list(list &&other) : list() { std::swap(other.sentry, sentry); }
+  list(list &&other) : list() {
+    std::swap(other.sentry, sentry);
+    std::swap(other.alloc_, alloc_);
+  }
 
   list(list &&other, const Allocator &alloc) : list(alloc) {
     std::swap(other.sentry, sentry);
@@ -67,43 +82,18 @@ public:
 
   list(std::initializer_list<T> init, const Allocator &alloc = Allocator())
       : list(alloc) {
-    for (auto elem : init)
+    for (const T &elem : init)
       push_back(elem);
   }
 
+  // Destructor ///////////////////////////////////////////////////////////////
+
   virtual ~list() {
     clear();
     delete sentry;
   }
 
-  // Element access ////////////////////////////////////////////////////////////
-
-  T &front() const { return sentry->n->x; }
-  T &back() const { return sentry->p->x; }
-
-  // Iterators /////////////////////////////////////////////////////////////////
-
-  iterator begin() noexcept { return iterator{sentry->n}; }
-
-  const_iterator begin() const noexcept { return const_iterator{sentry->n}; }
-  const_iterator cbegin() const noexcept { return const_iterator{sentry->n}; }
-
-  iterator end() noexcept { return iterator{sentry}; }
-  const_iterator end() const noexcept { return const_iterator{sentry}; }
-  const_iterator cend() const noexcept { return const_iterator{sentry}; }
-
-  // Capacity //////////////////////////////////////////////////////////////////
-
-  // Modifiers /////////////////////////////////////////////////////////////////
-
-  void clear() {
-    cell *it = sentry->n;
-    while (it != sentry) {
-      cell *todel = it;
-      it = it->n;
-      delete todel;
-    }
-  }
+  // operator= ////////////////////////////////////////////////////////////////
 
   list &operator=(const list &other) {
     cell *it = other.sentry->n;
@@ -120,12 +110,84 @@ public:
   }
 
   list &operator=(std::initializer_list<T> ilist) {
-    for (auto elem : ilist)
+    for (const T &elem : ilist)
       push_back(elem);
     return *this;
   }
 
-  bool empty() { return sentry->p == sentry; }
+  // Assign ///////////////////////////////////////////////////////////////////
+
+  void assign(size_type count, const T &value) {
+    clear();
+    for (int i = 0; i < count; ++i)
+      push_front(value);
+  }
+
+  template <class InputIt> void assign(InputIt first, InputIt last) {
+    clear();
+    for (; first != last; ++first)
+      push_back(*first);
+  }
+
+  void assign(std::initializer_list<T> ilist) {
+    clear();
+    for (const T &elem : ilist)
+      push_back(elem);
+  }
+
+  // get_allocator ////////////////////////////////////////////////////////////
+
+  std::allocator<T> get_allocator() { return alloc_; }
+
+  /////////////////////////////////////////////////////////////////////////////
+  //                              Element access                             //
+  /////////////////////////////////////////////////////////////////////////////
+
+  T &front() { return sentry->n->x; }
+  const T &front() const { return sentry->n->x; }
+
+  T &back() { return sentry->p->x; }
+  const T &back() const { return sentry->p->x; }
+
+  /////////////////////////////////////////////////////////////////////////////
+  //                                Iterators                                //
+  /////////////////////////////////////////////////////////////////////////////
+
+  // iterators ////////////////////////////////////////////////////////////////
+
+  iterator begin() noexcept { return iterator{sentry->n}; }
+  const_iterator begin() const noexcept { return const_iterator{sentry->n}; }
+  const_iterator cbegin() const noexcept { return const_iterator{sentry->n}; }
+
+  iterator end() noexcept { return iterator{sentry}; }
+  const_iterator end() const noexcept { return const_iterator{sentry}; }
+  const_iterator cend() const noexcept { return const_iterator{sentry}; }
+
+  // reverse iterators ////////////////////////////////////////////////////////
+
+  reverse_iterator rbegin() noexcept { return reverse_iterator{sentry->p}; }
+  const_reverse_iterator rbegin() const noexcept {
+    return const_reverse_iterator{sentry->p};
+  }
+  const_reverse_iterator crbegin() const noexcept {
+    return const_reverse_iterator{sentry->p};
+  }
+
+  reverse_iterator rend() noexcept { return reverse_iterator{sentry}; }
+  const_reverse_iterator rend() const noexcept {
+    return const_reverse_iterator{sentry};
+  }
+  const_reverse_iterator crend() const noexcept {
+    return const_reverse_iterator{sentry};
+  }
+
+  /////////////////////////////////////////////////////////////////////////////
+  //                                 Capacity                                //
+  /////////////////////////////////////////////////////////////////////////////
+
+  bool empty() const noexcept {
+    return sentry->p == sentry;
+  }
 
   size_type size() const {
     cell *it = sentry->n;
@@ -137,6 +199,48 @@ public:
     return n;
   }
 
+  /////////////////////////////////////////////////////////////////////////////
+  //                                Modifiers                                //
+  /////////////////////////////////////////////////////////////////////////////
+
+  void clear() {
+    cell *it = sentry->n;
+    while (it != sentry) {
+      cell *todel = it;
+      it = it->n;
+      delete todel;
+    }
+  }
+
+  iterator insert(const_iterator pos, const T &value) {
+    cell *elem = new cell{value};
+    elem->n = pos;
+    elem->p = pos->p;
+    pos->p->n = elem;
+    pos->p = elem;
+    return iterator{pos};
+  }
+
+  iterator insert(const_iterator pos, T &&value) {
+    cell *elem = new cell{value};
+    elem->n = pos;
+    elem->p = pos->p;
+    pos->p->n = elem;
+    pos->p = elem;
+    return iterator{pos};
+  }
+
+  template<class InputIt>
+  iterator insert(const_iterator pos, InputIt first, InputIt last) {
+    for(; first != last; ++first)
+      insert(pos, *first);
+    return iterator{pos};
+  }
+
+
+
+  bool empty() { return sentry->p == sentry; }
+
   void push_front(const T &v) {
     cell *c = new cell;
     c->x = v;
@@ -170,6 +274,10 @@ public:
   }
 
   class iterator {
+
+  protected:
+    cell *it;
+
   public:
     iterator() : it{nullptr} {}
     explicit iterator(cell *point) : it{point} {}
@@ -197,10 +305,10 @@ public:
       it = it->n;
       return *this;
     }
-    iterator &operator++(int) { // i++
-      iterator t;
-      t.it = it;
-      // iterator t{*this};
+    iterator operator++(int) { // i++
+      // iterator t;
+      // t.it = it;
+      iterator t{*this};
       it = it->n;
       return t;
     }
@@ -210,9 +318,10 @@ public:
       return *this;
     }
 
-    iterator &operator--(int) { // i--
-      iterator t;
-      t.it = it;
+    iterator operator--(int) { // i--
+      // iterator t;
+      // t.it = it;
+      iterator t{it};
       it = it->n;
       return t;
     }
@@ -226,9 +335,6 @@ public:
     bool operator!=(iterator &&other) { return other.it != it; }
 
     T operator*() { return it->x; }
-
-  protected:
-    cell *it;
   };
 
   class const_iterator : protected iterator {
@@ -243,12 +349,65 @@ public:
     const_iterator(const_iterator &&other) : iterator(std::move(other)) {}
 
     const_iterator &operator++() = delete;
-    const_iterator &operator++(int) = delete;
+    const_iterator operator++(int) = delete;
     const_iterator &operator--() = delete;
-    const_iterator &operator--(int) = delete;
+    const_iterator operator--(int) = delete;
 
     ~const_iterator() {}
   };
+
+  class reverse_iterator : protected iterator {
+  public:
+    reverse_iterator() : iterator() {}
+    explicit reverse_iterator(T *point) : iterator(point) {}
+
+    reverse_iterator(const reverse_iterator &other) : iterator(other) {}
+
+    reverse_iterator(reverse_iterator &&other) : iterator(std::move(other)) {}
+
+    reverse_iterator &operator++() {
+      this->it = this->it->p;
+      return *this;
+    }
+
+    reverse_iterator operator++(int) {
+      reverse_iterator t{*this};
+      this->it = this->it->p;
+      return t;
+    }
+
+    reverse_iterator &operator--() {
+      this->it = this->it->n;
+      return *this;
+    }
+
+    reverse_iterator operator--(int) {
+      reverse_iterator t{*this};
+      this->it = this->it->p;
+      return t;
+    }
+
+    ~reverse_iterator() {}
+  };
+
+  class const_reverse_iterator : protected iterator {
+  public:
+    const_reverse_iterator() : iterator() {}
+    explicit const_reverse_iterator(T *point) : iterator(point) {}
+
+    const_reverse_iterator(const const_reverse_iterator &other)
+        : iterator(other) {}
+
+    const_reverse_iterator(const_reverse_iterator &&other)
+        : iterator(std::move(other)) {}
+
+    const_reverse_iterator &operator++() = delete;
+    const_reverse_iterator &operator++(int) = delete;
+    const_reverse_iterator &operator--() = delete;
+    const_reverse_iterator &operator--(int) = delete;
+
+    ~const_reverse_iterator() {}
+  };
 };
 
 } // namespace phundrak
diff --git a/src/vector.hh b/src/vector.hh
index 9b599b9..166f9c3 100644
--- a/src/vector.hh
+++ b/src/vector.hh
@@ -3,6 +3,7 @@
 #include <iterator>
 #include <stdexcept>
 #include <iostream>
+#include <type_traits>
 
 namespace phundrak {
 
@@ -63,22 +64,26 @@ namespace phundrak {
         push_back(value);
     }
 
-    template <class InputIt> void assign(InputIt first, InputIt last) {
-      clear();
-      capacity_ = std::distance(first, last);
-      size_ = std::distance(first, last);
-      data_ = new T[size_];
-      for (int i = 0; first != last; ++first, ++i)
-        data_[i] = *first;
-    }
+    template<typename InputIt,
+             typename std::enable_if_t<!std::is_integral<InputIt>::value, InputIt>* = nullptr>
+
+
+    // template <class InputIt> void assign(InputIt first, InputIt last) {
+    //   clear();
+    //   capacity_ = std::distance(first, last);
+    //   size_ = std::distance(first, last);
+    //   data_ = new T[size_];
+    //   for (int i = 0; first != last; ++first, ++i)
+    //     data_[i] = *first;
+    // }
 
     // Element access /////////////////////////////////////////////////////////
 
     T &at(size_t pos) {
       try {
-        if (pos >= size_ || pos < 0)
+        if (pos >= size_)
           throw std::out_of_range("Out of range");
-      } catch (std::out_of_range e) {
+      } catch (const std::out_of_range& e) {
         std::cout << e.what() << " in phundrak::vector " << this << '\n';
         std::terminate();
       }
@@ -116,7 +121,7 @@ namespace phundrak {
     // Capacity ///////////////////////////////////////////////////////////////
 
     bool empty() const noexcept {
-      return (size_ <= 0 || data_ == nullptr) ? true : false;
+      return (data_ == nullptr) ? true : false;
     }
 
     size_t size() const noexcept { return size_; }