Minor change to explicit_operator aesthetics

src/hb-iter.hh

@@ -72,7 +72,7 @@ struct Iter<T *>
     array (array_), length (length_) {}
 
   /* Emptiness. */
-  explicit_operator operator bool (void) const { return bool (length); }
+  explicit_operator bool (void) const { return bool (length); }
 
   /* Current item. */
   T &operator * (void)

src/hb-machinery.hh

@@ -834,7 +834,7 @@ struct hb_lazy_loader_t : hb_data_wrapper_t<Data, WheresData>
 
   const Returned * operator -> (void) const { return get (); }
   const Returned & operator * (void) const { return *get (); }
-  explicit_operator operator bool (void) const
+  explicit_operator bool (void) const
   { return get_stored () != Funcs::get_null (); }
   template <typename C> operator const C * (void) const { return get (); }
 

src/hb-vector.hh

@@ -121,8 +121,8 @@ struct hb_vector_t
   hb_array_t<Type> sorted_sub_array (unsigned int start_offset, unsigned int *count = nullptr /* IN/OUT */)
   { return as_sorted_array ().sorted_sub_array (start_offset, count);}
 
-  template <typename T> explicit_operator operator  T * (void) { return arrayZ(); }
-  template <typename T> explicit_operator operator const T * (void) const { return arrayZ(); }
+  template <typename T> explicit_operator T * (void) { return arrayZ(); }
+  template <typename T> explicit_operator const T * (void) const { return arrayZ(); }
   operator hb_array_t<Type> (void) { return as_array (); }
   operator hb_array_t<const Type> (void) const { as_array (); }
 

src/hb.hh

@@ -137,14 +137,14 @@ struct _hb_alignof
 
 /* https://github.com/harfbuzz/harfbuzz/issues/1127 */
 #ifndef explicit_operator
-#define explicit_operator
+#define explicit_operator operator
 #endif
 
 #else /* __cplusplus >= 201103L */
 
 /* https://github.com/harfbuzz/harfbuzz/issues/1127 */
 #ifndef explicit_operator
-#define explicit_operator explicit
+#define explicit_operator explicit operator
 #endif
 
 #endif /* __cplusplus < 201103L */