From 2cddc37a67d36d13024bb882a3c73c55878b6a3d Mon Sep 17 00:00:00 2001
From: "K. Lange" <klange@toaruos.org>
Date: Sat, 28 Mar 2020 22:19:52 +0900
Subject: [PATCH] list: add convenience function to get item by index

---
 base/usr/include/toaru/list.h | 1 +
 lib/list.c                    | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/base/usr/include/toaru/list.h b/base/usr/include/toaru/list.h
index 34d68fad..95165bd7 100644
--- a/base/usr/include/toaru/list.h
+++ b/base/usr/include/toaru/list.h
@@ -42,6 +42,7 @@ extern node_t * list_pop(list_t * list);
 extern node_t * list_dequeue(list_t * list);
 extern list_t * list_copy(list_t * original);
 extern void list_merge(list_t * target, list_t * source);
+extern void * list_index(list_t * list, int index);
 
 extern void list_append_after(list_t * list, node_t * before, node_t * node);
 extern node_t * list_insert_after(list_t * list, node_t * before, void * item);
diff --git a/lib/list.c b/lib/list.c
index b76da626..f27de711 100644
--- a/lib/list.c
+++ b/lib/list.c
@@ -166,6 +166,15 @@ int list_index_of(list_t * list, void * value) {
 	return -1; /* not find */
 }
 
+void * list_index(list_t * list, int index) {
+	int i = 0;
+	foreach(item, list) {
+		if (i == index) return item->value;
+		i++;
+	}
+	return NULL;
+}
+
 void list_remove(list_t * list, size_t index) {
 	/* remove index from the list */
 	if (index > list->length) return;