list: Add list_pop_back

2 files changed, 10 insertions, 0 deletions

diff --git a/common/list.c b/common/list.c
index 1a86837..d38daa0 100644
--- a/common/list.c
+++ b/common/list.c
@@ -74,3 +74,12 @@ void *list_pop_front(struct list *list) {
 	list_del(list, 0);
 	return item;
 }
+
+void *list_pop_back(struct list *list) {
+	if (list->length == 0) {
+		return NULL;
+	}
+	void *item = list->items[list->length - 1];
+	list->length -= 1;
+	return item;
+}
diff --git a/include/list.h b/include/list.h
index 3f2ac6c..faeadd2 100644
--- a/include/list.h
+++ b/include/list.h
@@ -17,6 +17,7 @@ void list_del(struct list *list, size_t index);
 void list_concat(struct list *list, struct list *source);
 void list_truncate(struct list *list);
 void *list_pop_front(struct list *list);
+void *list_pop_back(struct list *list);
 size_t list_find(struct list *list, const void *item);
 
 #endif