1 /*
2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice including the dates of first publication and
13  * either this permission notice or a reference to
14  * http://oss.sgi.com/projects/FreeB/
15  * shall be included in all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23  * SOFTWARE.
24  *
25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
26  * shall not be used in advertising or otherwise to promote the sale, use or
27  * other dealings in this Software without prior written authorization from
28  * Silicon Graphics, Inc.
29  */
30 
31 /*
32  * arcsorter.h
33  *
34  */
35 
36 #ifndef __gluarcsorter_h_
37 #define __gluarcsorter_h_
38 
39 #include "sorter.h"
40 
41 class Arc;
42 class Subdivider;
43 
44 class ArcSorter : private Sorter {
45 public:
46 			ArcSorter(Subdivider &);
47     void		qsort( Arc **a, int n );
48 protected:
49     virtual int		qscmp( char *, char * );
50     Subdivider&		subdivider;
51 private:
52     void		qsexc( char *i, char *j );	// i<-j, j<-i
53     void		qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i
54 };
55 
56 
57 class ArcSdirSorter : public ArcSorter {
58 public:
59 			ArcSdirSorter( Subdivider & );
60 private:
61     int			qscmp( char *, char * );
62 };
63 
64 
65 class ArcTdirSorter : public ArcSorter {
66 public:
67 			ArcTdirSorter( Subdivider & );
68 private:
69     int			qscmp( char *, char * );
70 };
71 
72 #endif /* __gluarcsorter_h_ */
73