Function blosc_src::blosc_getitem

pub unsafe extern "C" fn blosc_getitem(
    src: *const c_void,
    start: c_int,
    nitems: c_int,
    dest: *mut c_void
) -> c_int

Get nitems (of typesize size) in src buffer starting in start. The items are returned in dest buffer, which has to have enough space for storing all items.

Returns the number of bytes copied to dest or a negative value if some error happens.