ValueOffset.h
Go to the documentation of this file.00001 /******************************************************************************* 00002 * 00003 * Copyright (c) 2008-2010 Michael Schulze <mschulze@ivs.cs.uni-magdeburg.de> 00004 * 2010 Marcus Foerster <MarcusFoerster1@gmx.de> 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 00014 * * Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in 00016 * the documentation and/or other materials provided with the 00017 * distribution. 00018 * 00019 * * Neither the name of the copyright holders nor the names of 00020 * contributors may be used to endorse or promote products derived 00021 * from this software without specific prior written permission. 00022 * 00023 * 00024 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00025 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00026 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00027 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00028 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00029 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00030 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00031 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00032 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00033 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00034 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00035 * 00036 * 00037 * $Id$ 00038 * 00039 ******************************************************************************/ 00040 00041 #ifndef _Value_Offset_ 00042 #define _Value_Offset_ 00043 00044 #include <stdint.h> 00045 00046 #include "ValueByteCount.h" 00047 #include "CaseSelector.h" 00048 00049 namespace famouso { 00050 namespace mw { 00051 namespace attributes { 00052 namespace detail { 00053 00062 template <typename Attr> 00063 struct ValueOffset { 00064 private: 00065 // For the second case (value fits extended) it is necessary to check if 00066 // the value only needs one byte, which would mean that it is simply written 00067 // into the second byte 00068 static const uint8_t res2 = (ValueBitCount<Attr>::value < 9) ? 1 : 0; 00069 00070 public: 00074 static const uint8_t value = CaseSelector<uint8_t, 00075 0, 00076 res2, 00077 1, 00078 2, 00079 2, 00080 3 00081 >::template select_ct<Attr>::value; 00082 }; 00083 00084 } // end namespace detail 00085 } // end namespace attributes 00086 } // end namespace mw 00087 } // end namespace famouso 00088 00089 #endif // _Value_Offset_