/indra/llcommon/llcommonutils.cpp
C++ | 56 lines | 21 code | 7 blank | 28 comment | 0 complexity | 7cc12e7667acf38fb2eb4127679e6e33 MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file llcommonutils.h
- * @brief Commin utils
- *
- * $LicenseInfo:firstyear=2010&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llcommonutils.h"
- void LLCommonUtils::computeDifference(
- const uuid_vec_t& vnew,
- const uuid_vec_t& vcur,
- uuid_vec_t& vadded,
- uuid_vec_t& vremoved)
- {
- uuid_vec_t vnew_copy(vnew);
- uuid_vec_t vcur_copy(vcur);
- std::sort(vnew_copy.begin(), vnew_copy.end());
- std::sort(vcur_copy.begin(), vcur_copy.end());
- size_t maxsize = llmax(vnew_copy.size(), vcur_copy.size());
- vadded.resize(maxsize);
- vremoved.resize(maxsize);
- uuid_vec_t::iterator it;
- // what was removed
- it = set_difference(vcur_copy.begin(), vcur_copy.end(), vnew_copy.begin(), vnew_copy.end(), vremoved.begin());
- vremoved.erase(it, vremoved.end());
- // what was added
- it = set_difference(vnew_copy.begin(), vnew_copy.end(), vcur_copy.begin(), vcur_copy.end(), vadded.begin());
- vadded.erase(it, vadded.end());
- }
- // EOF