lib: add a frr_each_const macro

Add a frr_each_const macro equivalent to loop on const lists. Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
FRRouting · Apr 18, 2023 · 72eae2c · 72eae2c
1 parent 46fb37c
commit 72eae2c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/typesafe.h b/lib/typesafe.h
@@ -20,6 +20,9 @@ extern "C" {
 #define frr_each(prefix, head, item)                                           \
 	for (item = prefix##_first(head); item;                                \
 			item = prefix##_next(head, item))
+#define frr_each_const(prefix, head, item)                                     \
+	for (item = prefix##_const_first(head); item;                          \
+	     item = prefix##_const_next(head, item))
 #define frr_each_safe(prefix, head, item)                                      \
 	for (typeof(prefix##_next_safe(head, NULL)) prefix##_safe =            \
 			prefix##_next_safe(head,                               \