Fix GCC warning

Author: GrieferAtWork

src/deemon/objects/rodict.c

@@ -261,7 +261,7 @@ rodict_trunc_vtab(RoDict *__restrict self, size_t old_valloc, size_t new_valloc)
 	new_hidxio = Dee_HASH_HIDXIO_FROM_VALLOC(new_valloc);
 	old_htab   = self->rd_htab;
 	new_htab   = (union Dee_hash_htab *)(_DeeRoDict_GetRealVTab(self) + new_valloc);
-	ASSERT(old_htab >= (void *)(_DeeRoDict_GetRealVTab(self) + self->rd_vsize)); /* ">=" because of over-allocation */
+	ASSERT(old_htab >= (union Dee_hash_htab *)(_DeeRoDict_GetRealVTab(self) + self->rd_vsize)); /* ">=" because of over-allocation */
 	hmask_memmovedown_and_maybe_downcast(new_htab, new_hidxio,
 	                                     old_htab, old_hidxio,
 	                                     self->rd_hmask + 1);