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py: More robust int conversion and overflow checking.

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This commit is contained in:
Damien George
2014-04-03 11:00:54 +00:00
parent a58a7aefbd
commit 8270e3853d
6 changed files with 63 additions and 9 deletions
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7
py/objlist.c
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@@ -122,12 +122,11 @@ STATIC mp_obj_t list_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
list_extend(lhs, rhs);
return o;
}
case MP_BINARY_OP_MULTIPLY:
{
if (!MP_OBJ_IS_SMALL_INT(rhs)) {
case MP_BINARY_OP_MULTIPLY: {
machine_int_t n;
if (!mp_obj_get_int_maybe(rhs, &n)) {
return NULL;
}
int n = MP_OBJ_SMALL_INT_VALUE(rhs);
mp_obj_list_t *s = list_new(o->len * n);
mp_seq_multiply(o->items, sizeof(*o->items), o->len, n, s->items);
return s;