int kd_insert(struct kdtree *tree, const double *pos, void *data) {
if (insert_rec(&tree->root, pos, data, 0, tree->dim)) {
return -1;
}
if (tree->rect == 0) {
tree->rect = hyperrect_create(tree->dim, pos, pos);
} else {
hyperrect_extend(tree->rect, pos);
}
return 0;
}
static struct kdhyperrect* hyperrect_duplicate(const struct kdhyperrect *rect)
{
return hyperrect_create(rect->dim, rect->min, rect->max);
}