diff --git a/includes/iterator.hpp b/includes/iterator.hpp
index 4e46896..4b4acfd 100644
--- a/includes/iterator.hpp
+++ b/includes/iterator.hpp
@@ -72,9 +72,7 @@ public:
   }
 
   pointer   base(void) { return _ptr; }
-  pointer   operator->(void) { return _ptr; }
   reference operator*(void) { return *_ptr; }
-  reference operator[](const difference_type n) { return *(_ptr + n); }
 
   random_access_iterator operator+(const difference_type n) const {
     return (random_access_iterator(_ptr + n));
@@ -125,6 +123,9 @@ public:
     return *this;
   }
 
+  pointer   operator->(void) { return _ptr; }
+  reference operator[](const difference_type n) { return *(_ptr + n); }
+
   friend bool operator==(const random_access_iterator &left,
                          const random_access_iterator &right) {
     return left._ptr == right._ptr;
diff --git a/includes/reverse_iterator.hpp b/includes/reverse_iterator.hpp
index eb6d995..14fc277 100644
--- a/includes/reverse_iterator.hpp
+++ b/includes/reverse_iterator.hpp
@@ -8,51 +8,51 @@ public:
   typedef typename Iterator::iterator_category iterator_category;
   typedef typename Iterator::value_type        value_type;
   typedef typename Iterator::difference_type   difference_type;
-  typedef typename Iterator::pointer          *pointer;
-  typedef typename Iterator::reference        &reference;
+  typedef typename Iterator::pointer          pointer;
+  typedef typename Iterator::reference        reference;
 
-private:
-  Iterator _base;
+protected:
+  Iterator current;
 
 public:
-  reverse_iterator(Iterator value = NULL) : _base(value) {}
+  reverse_iterator(Iterator value = NULL) : current(value) {}
 
   template < typename T >
-  reverse_iterator(const reverse_iterator< T > &iter) : _base(iter.base()) {}
+  reverse_iterator(const reverse_iterator< T > &iter) : current(iter.base()) {}
 
   reverse_iterator &operator=(const reverse_iterator &other) {
-    _base = other._base;
+    current = other.current;
     return *this;
   }
 
-  Iterator base(void) const { return _base; }
+  Iterator base(void) const { return current; }
 
   reference operator*(void) const {
-    Iterator ret = _base;
+    Iterator ret = current;
     return *(--ret);
   }
   reverse_iterator operator+(const difference_type n) const {
-    return (reverse_iterator(_base - n));
+    return (reverse_iterator(current - n));
   }
   reverse_iterator &operator++(void) {
-    --_base;
+    --current;
     return *this;
   }
-  reverse_iterator operator++(int) const {
+  reverse_iterator operator++(int) {
     reverse_iterator ret(*this);
     --(*this);
     return ret;
   }
   reverse_iterator &operator+=(const difference_type n) {
-    _base -= n;
+    current -= n;
     return *this;
   }
 
   reverse_iterator operator-(const difference_type n) const {
-    return (reverse_iterator(_base + n));
+    return (reverse_iterator(current + n));
   }
   reverse_iterator &operator--(void) {
-    ++_base;
+    ++current;
     return *this;
   }
   reverse_iterator operator--(int) {
@@ -61,7 +61,7 @@ public:
     return ret;
   }
   reverse_iterator &operator-=(const difference_type n) {
-    _base += n;
+    current += n;
     return *this;
   }
 
@@ -71,7 +71,7 @@ public:
   template < typename It >
   friend reverse_iterator operator+(const int                     n,
                                     const reverse_iterator< It > &op) {
-    return reverse_iterator(op._base - n);
+    return reverse_iterator(op.current - n);
   }
 };
 
@@ -115,7 +115,7 @@ template < class It1, class It2 >
 typename reverse_iterator< It1 >::difference_type
 operator-(const reverse_iterator< It1 > &lhs,
           const reverse_iterator< It2 > &rhs) {
-  return lhs.base() - rhs.base();
+  return -(lhs.base() - rhs.base());
 }
 
 } // namespace ft
diff --git a/includes/vector.hpp b/includes/vector.hpp
index 7c21b27..fb8be04 100644
--- a/includes/vector.hpp
+++ b/includes/vector.hpp
@@ -86,14 +86,15 @@ public:
     };
   }
   template < class It >
-  void
-  assign(It first, It last,
+  void assign(It first, It last,
          typename ft::enable_if< !is_integral< It >::value, bool >::type = 0) {
     size_type count = ft::distance(first, last) - 1;
     resize(count);
-    while (count-- > 0) {
-      _alloc.destroy(_begin + count);
-      _alloc.construct(_begin + count, *(--last));
+    size_t i = 0;
+    while (i < count) {
+      _alloc.destroy(_begin + i);
+      _alloc.construct(_begin + i, *(first++));
+      i++;
     }
   }
 
@@ -147,16 +148,23 @@ public:
   void      reserve(size_type new_cap) {
     if (new_cap > max_size())
       throw(std::length_error("vector::reserve: new_cap > max_size"));
+    if (new_cap < _capacity)
+      return ;
     Alloc   new_alloc;
     pointer new_begin;
     new_begin = new_alloc.allocate(new_cap);
-    for (size_type i = 0; i < _size; i++)
+    size_t new_size;
+    new_size = new_cap < _capacity ? new_cap : _size;
+    for (size_type i = 0; i < new_size; i++)
       new_alloc.construct(new_begin + i, *(_begin + i));
-    clear();
-    _alloc.deallocate(_begin, _capacity);
+    if (!empty())
+      clear();
+    if (_capacity)
+      _alloc.deallocate(_begin, _capacity);
     _alloc = new_alloc;
     _begin = new_begin;
     _capacity = new_cap;
+    _size = new_size;
   }
   size_type capacity(void) const { return _capacity; }
 
@@ -166,40 +174,39 @@ public:
       _alloc.destroy(_begin + i);
     _size = 0;
   }
-  iterator insert(iterator pos, const_reference value) {
+
+  iterator insert(const_iterator pos, const_reference value) {
     if (_size == _capacity)
       resize(_size + 1);
-    iterator it = end() + 1;
-    ;
-    while (--it >= pos)
+    iterator it = end();
+    while (--it > pos)
       *it = *(it - 1);
     *it = value;
     return _begin;
   }
-  iterator insert(iterator pos, size_type count, const_reference value) {
+  iterator insert(const_iterator pos, size_type count, const_reference value) {
     if ((_size + count) > _capacity)
       resize(_size + count);
-    iterator it = end() + count;
+    iterator it = end();
     while (--it >= (pos + count))
       *it = *(it - count);
-    while (it >= pos) {
-      *it = value;
-      it--;
-    }
-    return _begin;
+    while (it >= pos)
+      *(it--) = value;
+    return it;
   }
-  template < class It > iterator insert(iterator pos, It first, It last) {
+  template < class It > iterator insert(const_iterator pos, It first, It last,
+         typename ft::enable_if< !is_integral< It >::value, bool >::type = 0) {
     size_type count = ft::distance(first, last) - 1;
-    if ((_size + count) > _capacity)
-      resize(_size + count);
+    resize(_size + count);
     iterator it = end();
-    while (--it >= (pos + count))
+    while (--it > (pos + count))
       *it = *(it - count);
-    while (it >= pos) {
-      *(--it) = *(--last);
+    while (it > pos) {
+      *(it--) = *(last--);
     }
-    return _begin;
+    return it;
   }
+
   iterator erase(iterator pos) {
     while (pos < end()) {
       _alloc.destroy(pos.base());
@@ -220,6 +227,7 @@ public:
     }
     return _begin;
   }
+
   void push_back(const_reference value) {
     if (_size == _capacity)
       resize(_size + 1);
@@ -240,8 +248,9 @@ public:
         _alloc.construct(_begin + _size++, value);
     }
   }
+
   void swap(vector &other) {
-    vector< T > tmp = other;
+    vector< T > tmp(other);
     other = this;
     this = tmp;
   }