diff options
Diffstat (limited to 'collections/map/map.adoc')
| -rw-r--r-- | collections/map/map.adoc | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/collections/map/map.adoc b/collections/map/map.adoc index ce4999b..09dfde7 100644 --- a/collections/map/map.adoc +++ b/collections/map/map.adoc @@ -1,7 +1,7 @@ Map === Tucker Evans -v0.5, 2020-07-06 +v0.6, 2020-07-06 A basic map implemented in an AVL tree. @@ -96,6 +96,25 @@ else assert(map_size(dict) == 1); ---- +[[map_set_val]] ++void* map_set_val(map *self, void *key, void *val)+ +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +This replaces the value stored at +key+ (or equivalent) with +val+, the value +that is overwritten is return so the user can free it. + +Examples +^^^^^^^^ +[source,c] +---- +#include "map.h" +#include <string.h> + +map *dict = map_new((cmp_func) strcmp); + +map_insert(dict, strdup("ONE"), strdup("VALUE")); +free(map_set_val(dict, "ONE", "NEW_VALUE")); +---- + [[map_check_key_ptr]] +int map_check_key_ptr(map *self, void *key)+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -122,7 +141,6 @@ eq_key2 = strdup("ONE"); if (!map_check_key_ptr(dict, eq_key2)) { free(map_set_key(dict, eq_key2)); } - ---- [[map_set_key]] @@ -140,10 +158,14 @@ Examples map *dict = map_new((cmp_func) strcmp); -map_insert(dict, strdup("ONE"), "VALUE"); -assert(map_insert(dict, "ONE", "NEW_VALUE") < 0); -free(map_set_key(dict "ONE")); -assert(map_insert(dict, "ONE", "NEW_VALUE") == 0); +map_insert(dict, strdup("ONE"), NULL); + +eq_key2 = strdup("ONE"); + +/*Want to free key1 for some reason*/ +if (!map_check_key_ptr(dict, eq_key2)) { + free(map_set_key(dict, eq_key2)); +} ---- [[map_index]] |