Checks whether target exists in array by performing a binary
search based on the given comparison function compare_func which
get pointers to items as arguments. If the element is found, TRUE
is returned and the element’s index is returned in out_match_index
(if non-NULL). Otherwise, FALSE is returned and out_match_index
is undefined. If target exists multiple times in array, the index
of the first instance is returned. This search is using a binary
search, so the array must absolutely be sorted to return a correct
result (if not, the function may produce false-negative).
This example defines a comparison function and search an element in a GArray.get
static gint*
cmpint (gconstpointer a, gconstpointer b)
{
const gint *_a = a;
const gint *_b = b;
return *_a - *_b;
}
...
gint i = 424242;
guint matched_index;
gboolean result = g_array_binary_search (garray, &i, cmpint, &matched_index);
...
Checks whether target exists in array by performing a binary search based on the given comparison function compare_func which get pointers to items as arguments. If the element is found, TRUE is returned and the element’s index is returned in out_match_index (if non-NULL). Otherwise, FALSE is returned and out_match_index is undefined. If target exists multiple times in array, the index of the first instance is returned. This search is using a binary search, so the array must absolutely be sorted to return a correct result (if not, the function may produce false-negative).
This example defines a comparison function and search an element in a GArray.get