py/obj.h: Explicitly cast args to uint32_t in MP_OBJ_FUN_MAKE_SIG.

For architectures where size_t is less than 32 bits (eg 16 bits) the args
must be casted to uint32_t so the left shift will work.  For architectures
where size_t is greater than 32 bits (eg 64 bits) this new casting will not
lose any bits because the end result must anyway fit in a uint32_t.

1 files changed, 1 insertions, 1 deletions

diff --git a/py/runtime.h b/py/runtime.h
index 57df959d9..dd4c9a984 100644
--- a/py/runtime.h
+++ b/py/runtime.h
@@ -79,7 +79,7 @@ int mp_print_mp_int(const mp_print_t *print, mp_obj_t x, int base, int base_char
 
 void mp_arg_check_num_sig(size_t n_args, size_t n_kw, uint32_t sig);
 static inline void mp_arg_check_num(size_t n_args, size_t n_kw, size_t n_args_min, size_t n_args_max, bool takes_kw) {
-    mp_arg_check_num_sig(n_args, n_kw, (uint32_t)MP_OBJ_FUN_MAKE_SIG(n_args_min, n_args_max, takes_kw));
+    mp_arg_check_num_sig(n_args, n_kw, MP_OBJ_FUN_MAKE_SIG(n_args_min, n_args_max, takes_kw));
 }
 void mp_arg_parse_all(size_t n_pos, const mp_obj_t *pos, mp_map_t *kws, size_t n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);
 void mp_arg_parse_all_kw_array(size_t n_pos, size_t n_kw, const mp_obj_t *args, size_t n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);