101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* $XConsortium: heap.h /main/3 1996/06/11 17:17:11 cde-hal $
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*
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* Copyright (c) 1992 HaL Computer Systems, Inc. All rights reserved.
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* UNPUBLISHED -- rights reserved under the Copyright Laws of the United
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* States. Use of a copyright notice is precautionary only and does not
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* imply publication or disclosure.
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*
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* This software contains confidential information and trade secrets of HaL
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* Computer Systems, Inc. Use, disclosure, or reproduction is prohibited
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* without the prior express written permission of HaL Computer Systems, Inc.
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*
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* RESTRICTED RIGHTS LEGEND
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* Use, duplication, or disclosure by the Government is subject to
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* restrictions as set forth in subparagraph (c)(l)(ii) of the Rights in
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* Technical Data and Computer Software clause at DFARS 252.227-7013.
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* HaL Computer Systems, Inc.
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* 1315 Dell Avenue, Campbell, CA 95008
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*
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*/
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#ifndef _heap_h
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#define _heap_h 1
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#include "utility/funcs.h"
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#include "utility/buffer.h"
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typedef void (*call_back_func_ptr_t)(int, void*);
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class heap : private buffer {
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public:
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heap(cmp_func_ptr_t eq, cmp_func_ptr_t ls, int exp_elements = 1000);
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virtual ~heap();
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// insert function, no heapifying action taken
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Boolean insert(voidPtr elm) ;
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Boolean insert_heapify(voidPtr elm) ;
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// make a heap out of inserted elements
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void heapify();
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// retrieve function
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void* max_elm() ;
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void adjust_max_to(voidPtr new_max_item);
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void delete_max(call_back_func_ptr_t call_back_func_t = 0);
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void remove(); // remove all elements
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// status function: number of elements in the heap
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int count() {
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return buffer::content_sz() / sizeof(voidPtr) - 1;
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};
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Boolean update() { return v_updated; };
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void adjust(int i, call_back_func_ptr_t call_back_func_t = 0);
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// iterator
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int first();
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voidPtr operator()(int ind);
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void next(int& ind);
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protected:
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void _delete_max(int i, voidPtr *heap_space);
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protected:
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Boolean v_updated;
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cmp_func_ptr_t f_cmp_func_eq;
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cmp_func_ptr_t f_cmp_func_ls;
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};
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typedef heap *heapPtr;
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#endif
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