Tizen Native API
4.0
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If you don't know how to create lists see Adding elements to Eina_List.
We start out with code that should be familiar by now:
#include <stdio.h> #include <Eina.h> int main(int argc, char **argv) { (void)argc; (void)argv; Eina_List *list = NULL, *r_list; Eina_List *l; Eina_Iterator *itr; void *list_data; eina_init(); list = eina_list_append(list, "caprica"); list = eina_list_append(list, "sagitarius"); list = eina_list_append(list, "aerilon"); list = eina_list_append(list, "gemenon");
You can move elements around in a list using eina_list_move() or using eina_list_promote_list() and eina_list_demote_list() which move a list node to the head and end of the list respectively:
list = eina_list_promote_list(list, eina_list_nth_list(list, 2)); list = eina_list_demote_list(list, eina_list_nth_list(list, 2));
Removing elements from a list can be done with ease:
list = eina_list_remove(list, "sagitarius");
To replace an element in the list it is not necessary to remove it and then add with the new value, it is possible to just change the value of a node:
l = eina_list_data_find_list(list, "aerilon"); eina_list_data_set(l, "aquarius");
We will now take a peek to see if the list still has the right number of elements:
printf("size: %d\n", eina_list_count(list));
Now that the list is in alphabetical order let's create a copy of it in reverse order and print every element to see if worked as expected:
r_list = eina_list_reverse_clone(list); itr = eina_list_iterator_new(r_list); EINA_ITERATOR_FOREACH(itr, list_data) printf("%s\n", (char*)list_data); eina_iterator_free(itr);
- Note:
- Always remember to free your iterators when done using them.
And as always release memory and shutdown eina before ending:
eina_list_free(list); eina_list_free(r_list); eina_shutdown(); return 0; }
The full source code can be found on the examples folder on the eina_list_03.c file.