/* * This file is a part of Pcompress, a chunked parallel multi- * algorithm lossless compression and decompression program. * * Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved. * Use is subject to license terms. * * This program 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; either * version 3 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. * If not, see . * * moinakg@belenix.org, http://moinakg.wordpress.com/ * */ /////////////////////////////////////////////////////////////////////////////// // /// \file crc_macros.h /// \brief Some endian-dependent macros for CRC32 and CRC64 // // Author: Lasse Collin // // This file has been put into the public domain. // You can do whatever you want with this file. // /////////////////////////////////////////////////////////////////////////////// #include #ifdef WORDS_BIGENDIAN # define A(x) ((x) >> 24) # define B(x) (((x) >> 16) & 0xFF) # define C(x) (((x) >> 8) & 0xFF) # define D(x) ((x) & 0xFF) # define S8(x) ((x) << 8) # define S32(x) ((x) << 32) #else # define A(x) ((x) & 0xFF) # define B(x) (((x) >> 8) & 0xFF) # define C(x) (((x) >> 16) & 0xFF) # define D(x) ((x) >> 24) # define S8(x) ((x) >> 8) # define S32(x) ((x) >> 32) #endif