Like lookup, but uses a SequenceIterCompareFunc instead of a CompareDataFunc as the compare function.
iter_cmp is called with two iterators pointing into this. It should return 0 if the
iterators are equal, a negative value if the first iterator comes before the second, and a positive value if the second iterator comes
before the first.
This function will fail if the data contained in the sequence is unsorted. Use insert_sorted or insert_sorted_iter to add data to your sequence or, if you want to add a large amount of data, call sort after doing unsorted insertions.
| this |
a Sequence |
| data |
data to lookup |
| iter_cmp |
the function used to compare iterators in the sequence |
| cmp_data |
user data passed to |
|
an SequenceIter pointing to the position of the first item found equal to
|