Code review.

include/nlohmann/detail/iterators/iterator_traits.hpp

@@ -39,11 +39,11 @@ struct iterator_traits<T, enable_if_t<!std::is_pointer<T>::value>>
 
 template <typename T>
 struct iterator_traits<T*, enable_if_t<std::is_object<T>::value>> {
-  typedef std::random_access_iterator_tag iterator_category;
-  typedef T value_type;
-  typedef ptrdiff_t difference_type;
-  typedef T* pointer;
-  typedef T& reference;
+  using iterator_category = std::random_access_iterator_tag;
+  using value_type = T;
+  using difference_type = ptrdiff_t;
+  using pointer = T*;
+  using reference = T&;
 };
 }
-}
+}
\ No newline at end of file

single_include/nlohmann/json.hpp

@@ -367,8 +367,8 @@ struct iterator_types <
     using iterator_category = typename It::iterator_category;
 };
 
-// This is required due to https://github.com/nlohmann/json/issues/1341 - where some
-// compilers implement std::iterator_traits in a way that doesn't work with SFINAE.
+// This is required as some compilers implement std::iterator_traits in a way that
+// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341.
 template <typename T, typename = void>
 struct iterator_traits
 {
@@ -383,14 +383,15 @@ struct iterator_traits < T, enable_if_t < !std::is_pointer<T>::value >>
 template <typename T>
 struct iterator_traits<T*, enable_if_t<std::is_object<T>::value>>
 {
-    typedef std::random_access_iterator_tag iterator_category;
-    typedef T value_type;
-    typedef ptrdiff_t difference_type;
-    typedef T* pointer;
-    typedef T& reference;
+    using iterator_category = std::random_access_iterator_tag;
+    using value_type = T;
+    using difference_type = ptrdiff_t;
+    using pointer = T*;
+    using reference = T&;
 };
 }
 }
+
 // #include <nlohmann/detail/meta/cpp_future.hpp>
 
 // #include <nlohmann/detail/meta/detected.hpp>