/usr/include/ug/boxtree.h is in libug-dev 3.12.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// vi: set et ts=4 sw=2 sts=2:
/****************************************************************************/
/* */
/* File: boxtree.h */
/* */
/* Purpose: boxtree data structure */
/* */
/* Author: Michael Lampe */
/* IWR - Technische Simulation */
/* Universitaet Heidelberg */
/* Im Neuenheimer Feld 368 */
/* 69120 Heidelberg */
/* Email: Michael.Lampe@iwr.uni-heidelberg.de */
/* */
/* History: 20010927 begin, ug3.8 */
/* */
/* Remarks: see Visual Computer (1987) 3:236-249 */
/* */
/****************************************************************************/
/* RCS_ID
$Header$
*/
/****************************************************************************/
/* */
/* auto include mechanism and other include files */
/* */
/****************************************************************************/
#ifndef __BOXTREE__
#define __BOXTREE__
#include "domain.h"
#include "dimension.h"
/****************************************************************************/
/* */
/* data structures exported by the corresponding source file */
/* */
/****************************************************************************/
typedef struct bt_object {
double range[DIM][2];
double left_range[2];
double right_range[2];
struct bt_object *left_son;
struct bt_object *right_son;
} BT_OBJECT;
typedef struct {
BT_OBJECT *root;
double range[DIM][2];
} BOXTREE;
typedef void BT_FUNC (BT_OBJECT *, void *);
/****************************************************************************/
/* */
/* exported functions */
/* */
/****************************************************************************/
void BT_Init(BT_OBJECT **box, int n, BOXTREE *tree);
void BT_Search(BOXTREE *tree, double range[DIM][2], BT_FUNC func, void *data);
void BT_SearchP(BOXTREE *tree, double *x, BT_FUNC func, void *data);
#endif
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