-#define pool_foreach_index(i,v) \
- if (v) \
- for (i = pool_get_first_index (v); \
- i < vec_len (v); \
- i = pool_get_next_index (v, i)) \
+#define pool_foreach_index(i, v) \
+ if (v) \
+ for (i = pool_get_first_index (v); i < vec_len (v); \
+ i = pool_get_next_index (v, i))
+
+/* Iterate pool by index from s to e */
+#define pool_foreach_stepping_index(i, s, e, v) \
+ for ((i) = \
+ (pool_is_free_index ((v), (s)) ? pool_get_next_index ((v), (s)) : \
+ (s)); \
+ (i) < (e); (i) = pool_get_next_index ((v), (i)))