Function croaring_sys_mw::ra_append_copy

pub unsafe extern "C" fn ra_append_copy(
    ra: *mut roaring_array_t, 
    sa: *const roaring_array_t, 
    index: u16, 
    copy_on_write: bool
)

Append a new key-value pair to ra, cloning (in COW sense) a value from sa at index index