vector finish

headers/iterator_traits.hpp

@@ -0,0 +1,44 @@
+
+#ifndef ITERATOR_TRAITS_HPP
+# define ITERATOR_TRAITS_HPP
+
+# include <iterator>	// iterator_tag
+# include <cstddef>		// ptrdiff_t
+
+namespace ft {
+
+template < typename Iterator >
+	struct iterator_traits
+{
+	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;
+};
+
+template < typename T >
+	struct iterator_traits<T*>
+{
+	typedef std::random_access_iterator_tag			iterator_category;
+	typedef T										value_type;
+	typedef std::ptrdiff_t							difference_type;
+	typedef T*										pointer;
+	typedef T&										reference;
+};
+
+template < typename T >
+	struct iterator_traits<const T*>
+{
+	typedef std::random_access_iterator_tag			iterator_category;
+	typedef T										value_type;
+	typedef std::ptrdiff_t							difference_type;
+	typedef const T*								pointer;
+	typedef const T&								reference;
+};
+
+} // namespace ft
+
+#endif
+
+// https://www.fluentcpp.com/2018/05/08/std-iterator-deprecated/