2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
24 * $XConsortium: heap.h /main/3 1996/06/11 17:17:11 cde-hal $
26 * Copyright (c) 1992 HaL Computer Systems, Inc. All rights reserved.
27 * UNPUBLISHED -- rights reserved under the Copyright Laws of the United
28 * States. Use of a copyright notice is precautionary only and does not
29 * imply publication or disclosure.
31 * This software contains confidential information and trade secrets of HaL
32 * Computer Systems, Inc. Use, disclosure, or reproduction is prohibited
33 * without the prior express written permission of HaL Computer Systems, Inc.
35 * RESTRICTED RIGHTS LEGEND
36 * Use, duplication, or disclosure by the Government is subject to
37 * restrictions as set forth in subparagraph (c)(l)(ii) of the Rights in
38 * Technical Data and Computer Software clause at DFARS 252.227-7013.
39 * HaL Computer Systems, Inc.
40 * 1315 Dell Avenue, Campbell, CA 95008
48 #include "utility/funcs.h"
49 #include "utility/buffer.h"
51 typedef void (*call_back_func_ptr_t)(int, void*);
53 class heap : private buffer {
57 heap(cmp_func_ptr_t eq, cmp_func_ptr_t ls, int exp_elements = 1000);
60 // insert function, no heapifying action taken
61 Boolean insert(voidPtr elm) ;
62 Boolean insert_heapify(voidPtr elm) ;
64 // make a heap out of inserted elements
69 void adjust_max_to(voidPtr new_max_item);
71 void delete_max(call_back_func_ptr_t call_back_func_t = 0);
72 void remove(); // remove all elements
74 // status function: number of elements in the heap
76 return buffer::content_sz() / sizeof(voidPtr) - 1;
79 Boolean update() { return v_updated; };
80 void adjust(int i, call_back_func_ptr_t call_back_func_t = 0);
84 voidPtr operator()(int ind);
88 void _delete_max(int i, voidPtr *heap_space);
93 cmp_func_ptr_t f_cmp_func_eq;
94 cmp_func_ptr_t f_cmp_func_ls;
97 typedef heap *heapPtr;