Function croaring_sys::roaring64_iterator_read

pub unsafe extern "C" fn roaring64_iterator_read(
    it: *mut roaring64_iterator_t,
    buf: *mut u64,
    count: u64
) -> u64

Reads up to count values from the iterator into the given buf. Returns the number of elements read. The number of elements read can be smaller than count, which means that there are no more elements in the bitmap.

This function can be used together with other iterator functions.