Fix formatting of abstract classes via ostream

2021-09-02 08:19:12 -07:00
parent 8029bf955c
commit ee0659f8b6
2 changed files with 17 additions and 3 deletions
@@ -579,9 +579,10 @@ inline auto code_point_index(basic_string_view<char8_type> s, size_t n)
  return s.size();
 }

-template <typename T>
-using is_fast_float = bool_constant<std::numeric_limits<T>::is_iec559 &&
-                                    sizeof(T) <= sizeof(double)>;
+template <typename T, bool = std::is_floating_point<T>::value>
+struct is_fast_float : bool_constant<std::numeric_limits<T>::is_iec559 &&
+                                     sizeof(T) <= sizeof(double)> {};
+template <typename T> struct is_fast_float<T, false> : std::false_type {};

 #ifndef FMT_USE_FULL_CACHE_DRAGONBOX
 #  define FMT_USE_FULL_CACHE_DRAGONBOX 0