/usr/include/dynamicEDT3D/bucketedqueue.h is in libdynamicedt3d-dev 1.8.1+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | /**
* dynamicEDT3D:
* A library for incrementally updatable Euclidean distance transforms in 3D.
* @author C. Sprunk, B. Lau, W. Burgard, University of Freiburg, Copyright (C) 2011.
* @see http://octomap.sourceforge.net/
* License: New BSD License
*/
/*
* Copyright (c) 2011-2012, C. Sprunk, B. Lau, W. Burgard, University of Freiburg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Freiburg nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _PRIORITYQUEUE2_H_
#define _PRIORITYQUEUE2_H_
#include <vector>
#include <set>
#include <queue>
#include <assert.h>
#include "point.h"
#include <map>
//! Priority queue for integer coordinates with squared distances as priority.
/** A priority queue that uses buckets to group elements with the same priority.
* The individual buckets are unsorted, which increases efficiency if these groups are large.
* The elements are assumed to be integer coordinates, and the priorities are assumed
* to be squared euclidean distances (integers).
*/
template <typename T>
class BucketPrioQueue {
public:
//! Standard constructor
/** Standard constructor. When called for the first time it creates a look up table
* that maps square distanes to bucket numbers, which might take some time...
*/
BucketPrioQueue();
void clear() { buckets.clear(); }
//! Checks whether the Queue is empty
bool empty();
//! push an element
void push(int prio, T t);
//! return and pop the element with the lowest squared distance */
T pop();
int size() { return count; }
int getNumBuckets() { return buckets.size(); }
private:
int count;
typedef std::map< int, std::queue<T> > BucketType;
BucketType buckets;
typename BucketType::iterator nextPop;
};
#include "bucketedqueue.hxx"
#endif
|