struct key_data *new = xnew_array (struct key_data, size);
memcpy ((void *)new, (const void *)c->keys_so_far,
c->keys_so_far_total_size * sizeof (struct key_data));
struct key_data *new = xnew_array (struct key_data, size);
memcpy ((void *)new, (const void *)c->keys_so_far,
c->keys_so_far_total_size * sizeof (struct key_data));