Find the first element in it that matches the compare function func.
func should return 0 when the element is found. The first parameter
to func will be the current element of the iterator and the
second parameter will be user_data.
The result will be stored in elem if a result is found.
The iterator will not be freed.
This function will return FALSE if an error happened to the iterator
or if the element wasn't found.
Find the first element in it that matches the compare function func. func should return 0 when the element is found. The first parameter to func will be the current element of the iterator and the second parameter will be user_data. The result will be stored in elem if a result is found. The iterator will not be freed. This function will return FALSE if an error happened to the iterator or if the element wasn't found.