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: params.cc /main/4 1996/07/18 14:33:30 drk $
26 * Copyright (c) 1993 HAL Computer Systems International, Ltd.
27 * All rights reserved. Unpublished -- rights reserved under
28 * the Copyright Laws of the United States. USE OF A COPYRIGHT
29 * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
32 * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
33 * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
34 * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
35 * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
38 * RESTRICTED RIGHTS LEGEND
39 * Use, duplication, or disclosure by the Government is subject
40 * to the restrictions as set forth in subparagraph (c)(l)(ii)
41 * of the Rights in Technical Data and Computer Software clause
42 * at DFARS 252.227-7013.
44 * HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
51 #include "hmphf/params.h"
58 } partition_tbl [] = {
59 {100, 3.2, 0.52, 0.31}, {1000, 3.4, 0.55, 0.3}, {10000, 3.4, 0.57, 0.29},
60 {MAXINT, 4.2, 0.58, 0.3}
63 void params::select_value(float bts)
67 if ( (int)v_n <= partition_tbl[i].upper_bound )
72 v_bits = partition_tbl[i].bits;
77 v_b = ( v_n > 0 ) ? (int)( float(v_n*v_bits) / (1.0+flog2(v_n)) ) : 0;
79 v_p1 = (int)( partition_tbl[i].p1 * v_n);
80 v_p2 = (int)( partition_tbl[i].p2 * v_b);
82 if ( v_p1 == 0 ) v_p1++;
83 if ( v_p2 == 0 ) v_p2++;
88 void params::re_select_value()
90 select_value(v_bits+0.2);
93 ostream& operator<<(ostream& out, params& pms)
99 debug(out, (int)pms.v_bits);
101 debug(out, pms.v_seed);