00001 /* 00002 00003 Copyright (C) 2005-2007 by Peter Dimov. 00004 00005 This file is part of Calitko (http://www.calitko.org). 00006 00007 Calitko is free software; you can redistribute it and/or modify 00008 it under the terms of the GNU General Public License as published by 00009 the Free Software Foundation; either version 2 of the License, or 00010 (at your option) any later version. 00011 00012 Calitko is distributed in the hope that it will be useful, 00013 but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 GNU General Public License for more details. 00016 00017 You should have received a copy of the GNU General Public License 00018 along with Calitko; if not, write to the Free Software 00019 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00020 00021 */ 00022 00023 #include "Qt.h" 00024 00025 uint qHash(const QUuid &key) 00026 { 00027 // \todo Does the packing cuase "holes" between the fields? 00028 const uchar *p = reinterpret_cast <const uchar *>(&key); 00029 int n = sizeof (key); 00030 uint h = 0; 00031 uint g; 00032 00033 while (n--) { 00034 h = (h << 4) + *p++; 00035 if ((g = (h & 0xf0000000)) != 0) 00036 h ^= g >> 23; 00037 h &= ~g; 00038 } 00039 return h; 00040 }