Added pop function, same as delete but writes out the value, lowkey i'll do the tests later because delete pretty much already does the same thing

src/linkedlist.c

@@ -206,3 +206,40 @@ LinkedListErr linkedlist_len(const LinkedList *ll, size_t *out) {
     *out = ll->len;
     return LLIST_OK;
 }
+
+LinkedListErr linkedlist_pop(LinkedList *ll, size_t index, void *out) {
+    if (ll == NULL) {
+        return LLIST_NULL;
+    }
+
+    if (out == NULL) {
+        return LLIST_NULL_ARG;
+    }
+
+    if (index >= ll->len) {
+        return LLIST_OUT_OF_BOUNDS;
+    }
+
+    Node *before = NULL;
+    Node *current = ll->head;
+    for (size_t i = 0; i < index; i++) {
+        before = current;
+        current = current->next;
+    }
+
+    if (index == 0) {
+        ll->head = current->next;
+    } else {
+        // If its last current-next is just NULL so is okay
+        before->next = current->next;
+    }
+
+    memcpy(out, current->data, ll->elem_size);
+    // Fuck them dangling pointers
+    free(current->data);
+    free(current);
+    ll->len = ll->len - 1;
+
+    return LLIST_OK;
+
+}