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Merge pull request #155 from LeSpocky/bsearch

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add bsearch for arrays
This commit is contained in:
Eric Haszlakiewicz
2015-03-03 22:00:08 -05:00
parent 9db3099572 2f5789bdef
commit a500c1f0b5
4 changed files with 49 additions and 2 deletions
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19
json_object.h
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@@ -407,6 +407,25 @@ extern int json_object_array_length(struct json_object *obj);
*/
extern void json_object_array_sort(struct json_object *jso, int(*sort_fn)(const void *, const void *));
/** Binary search a sorted array for a specified key object.
*
* It depends on your compare function what's sufficient as a key.
* Usually you create some dummy object with the parameter compared in
* it, to identify the right item you're actually looking for.
*
* @see json_object_array_sort() for hints on the compare function.
*
* @param key a dummy json_object with the right key
* @param jso the array object we're searching
* @param sort_fn the sort/compare function
*
* @return the wanted json_object instance
*/
extern struct json_object* json_object_array_bsearch(
const struct json_object *key,
const struct json_object *jso,
int (*sort_fn)(const void *, const void *) );
/** Add an element to the end of a json_object of type json_type_array
*
* The reference count will *not* be incremented. This is to make adding