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list: add LIF_LIST_FOREACH_REVERSE()

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Ariadne Conill 2020-08-24 11:03:18 -06:00
parent 80cdfc7f96
commit dfb979d00d
1 changed files with 3 additions and 0 deletions
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libifupdown/list.h
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@ -42,4 +42,7 @@ extern void lif_node_delete(struct lif_node *node, struct lif_list *list);
#define LIF_LIST_FOREACH_SAFE(iter, iter_next, head) \ #define LIF_LIST_FOREACH_SAFE(iter, iter_next, head) \
for ((iter) = (head), (iter_next) = (iter)->next; (iter) != NULL; (iter) = (iter_next), (iter_next) = (iter) != NULL ? (iter)->next : NULL) for ((iter) = (head), (iter_next) = (iter)->next; (iter) != NULL; (iter) = (iter_next), (iter_next) = (iter) != NULL ? (iter)->next : NULL)
#define LIF_LIST_FOREACH_REVERSE(iter, tail) \
for ((iter) = (tail); (iter) != NULL; (iter) = (iter)->prev)
#endif #endif