[PATCH 2/9 v4] libsepol/cil: Add cil_list_is_empty macro

[James Carter <jwcart2@xxxxxxxxx>]

Add a macro, called cil_list_is_empty, that returns true if the
list pointer or list head is NULL.

Signed-off-by: James Carter <jwcart2@xxxxxxxxx>
---
 libsepol/cil/src/cil_list.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libsepol/cil/src/cil_list.h b/libsepol/cil/src/cil_list.h
index 6b4708a0..f974fddc 100644
--- a/libsepol/cil/src/cil_list.h
+++ b/libsepol/cil/src/cil_list.h
@@ -44,6 +44,9 @@ struct cil_list_item {
 	void *data;
 };
 
+#define cil_list_is_empty(list) \
+	((list) == NULL || (list)->head == NULL)
+
 #define cil_list_for_each(item, list) \
 	for (item = (list)->head; item != NULL; item = item->next)
 
-- 
2.41.0