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optimize the way to find tail node

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Alanscut
2020-09-02 20:23:52 +08:00
parent 0b13220419
commit c8ca78a3cc
2 changed files with 14 additions and 11 deletions
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8
cJSON_Utils.c
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@@ -403,7 +403,7 @@ static cJSON *detach_item_from_array(cJSON *array, size_t which)
/* item doesn't exist */
return NULL;
}
if (c->prev)
if (c != array->child)
{
/* not the first element */
c->prev->next = c->next;
@@ -412,10 +412,14 @@ static cJSON *detach_item_from_array(cJSON *array, size_t which)
{
c->next->prev = c->prev;
}
if (c==array->child)
if (c == array->child)
{
array->child = c->next;
}
else if (c->next == NULL)
{
array->child->prev = c->prev;
}
/* make sure the detached item doesn't point anywhere anymore */
c->prev = c->next = NULL;