/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2017 CERN * @author Maciej Suminski <maciej.suminski@cern.ch> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, you may find one here: * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * or you may search the http://www.gnu.org website for the version 2 license, * or you may write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ /** * @brief Hashing functions for EDA_ITEMs. */ #include <cstdlib> class EDA_ITEM; ///> Enables/disables properties that will be used for calculating the hash. ///> The properties might be combined using the bitwise 'or' operator. enum HASH_FLAGS { POSITION = 0x01, ///> use coordinates relative to the parent object REL_COORD = 0x02, ROTATION = 0x04, LAYER = 0x08, NET = 0x10, REFERENCE = 0x20, VALUE = 0x40, ALL = 0xff }; /** * Calculates hash of an EDA_ITEM. * @param aItem is the item for which the hash will be computed. * @return Hash value. */ std::size_t hash_eda( const EDA_ITEM* aItem, int aFlags = HASH_FLAGS::ALL );