Adjust is_iterator

2019-12-30 22:02:50 -05:00
parent 5845a73275
commit aabc300c22
1 changed files with 4 additions and 7 deletions
--- a/include/boost/static_string/detail/static_string.hpp
+++ b/include/boost/static_string/detail/static_string.hpp
@ -73,11 +73,8 @@ struct is_iterator : std::false_type { };

 template<class T>
 struct is_iterator<T, 
-  void_t<typename T::difference_type, 
-         typename T::value_type, 
-         typename T::pointer, 
-         typename T::reference, 
-         typename T::iterator_category>>
+    typename std::enable_if<std::is_class<T>::value, 
+        void_t<typename T::iterator_category>>::type>
            : std::true_type { };

 template<class T>