fix ndarray subscription method (#619)

Author: v923z

code/ndarray.c

@@ -1438,6 +1438,9 @@ static mp_obj_t ndarray_get_slice(ndarray_obj_t *ndarray, mp_obj_t index, ndarra
 }
 
 mp_obj_t ndarray_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
+    if(value == MP_OBJ_NULL) {
+        mp_raise_ValueError(translate("cannot delete array elements"));
+    }
     ndarray_obj_t *self = MP_OBJ_TO_PTR(self_in);
 
     if (value == MP_OBJ_SENTINEL) { // return value(s)

code/ulab.c

@@ -33,7 +33,7 @@
 #include "user/user.h"
 #include "utils/utils.h"
 
-#define ULAB_VERSION 6.0.12
+#define ULAB_VERSION 6.1.1
 #define xstr(s) str(s)
 #define str(s) #s
 

docs/ulab-change-log.md

@@ -1,3 +1,15 @@
+Wed, 17 May 2023
+
+version 6.1.1
+
+    fix ndarray subscription, when value is NULL
+     
+Tue, 16 May 2023
+
+version 6.1.0
+
+    add sinc function
+
 Sun, 7 May 2023
 
 version 6.0.12