Add ARRAY_SIZE macro, and use it where possible.

1 files changed, 1 insertions, 1 deletions

diff --git a/stmhal/main.c b/stmhal/main.c
index 861e584d1..a25f3f69d 100644
--- a/stmhal/main.c
+++ b/stmhal/main.c
@@ -279,7 +279,7 @@ soft_reset:
             MP_OBJ_NEW_SMALL_INT(115200),
         };
         pyb_uart_global_debug = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type,
-                                                       sizeof(args) / sizeof(args[0]),
+                                                       ARRAY_SIZE(args),
                                                        0, args);
     }
 #else