drop

static VALUE
lazy_drop(VALUE obj, VALUE n)
{
    long len = NUM2LONG(n);

    if (len < 0) {
        rb_raise(rb_eArgError, "attempt to drop negative size");
    }
    return lazy_set_method(rb_block_call(rb_cLazy, id_new, 1, &obj,
                                         lazy_drop_func, n),
                           rb_ary_new3(1, n), lazy_drop_size);
}