node_copy
r = node_copy(left, right, count);
r = node_copy(left, right, count);
node_copy(left, right, -nr_right);
node_copy(left, center, -shift);
node_copy(center, right, shift);
d_max = node_copy(mas, src, s_offset, size, s_max, s_mt,
node_copy(mas, cp->src[0].node, 0, cp->data, cp->max, maple_copy,