Image Component Library (ICL)
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00001 /******************************************************************** 00002 ** Image Component Library (ICL) ** 00003 ** ** 00004 ** Copyright (C) 2006-2013 CITEC, University of Bielefeld ** 00005 ** Neuroinformatics Group ** 00006 ** Website: www.iclcv.org and ** 00007 ** http://opensource.cit-ec.de/projects/icl ** 00008 ** ** 00009 ** File : ICLUtils/src/ICLUtils/FixedArray.h ** 00010 ** Module : ICLUtils ** 00011 ** Authors: Christof Elbrechter ** 00012 ** ** 00013 ** ** 00014 ** GNU LESSER GENERAL PUBLIC LICENSE ** 00015 ** This file may be used under the terms of the GNU Lesser General ** 00016 ** Public License version 3.0 as published by the ** 00017 ** ** 00018 ** Free Software Foundation and appearing in the file LICENSE.LGPL ** 00019 ** included in the packaging of this file. Please review the ** 00020 ** following information to ensure the license requirements will ** 00021 ** be met: http://www.gnu.org/licenses/lgpl-3.0.txt ** 00022 ** ** 00023 ** The development of this software was supported by the ** 00024 ** Excellence Cluster EXC 277 Cognitive Interaction Technology. ** 00025 ** The Excellence Cluster EXC 277 is a grant of the Deutsche ** 00026 ** Forschungsgemeinschaft (DFG) in the context of the German ** 00027 ** Excellence Initiative. ** 00028 ** ** 00029 ********************************************************************/ 00030 00031 #pragma once 00032 00033 #include <ICLUtils/CompatMacros.h> 00034 00035 namespace icl{ 00036 namespace utils{ 00038 00044 template<class T,unsigned int DIM> 00045 struct FixedArray{ 00046 T m_data[DIM]; 00047 00049 T &operator[](unsigned int idx) { return m_data[idx]; } 00050 00052 const T &operator[](unsigned int idx) const { return m_data[idx]; } 00053 }; 00054 00056 template<class T> 00057 struct FixedArray<T, 1u>{ 00058 union{ 00059 T m_data[1]; 00060 T x; 00061 }; 00062 00064 FixedArray(){} 00065 00067 FixedArray(const T &x) : x(x){} 00068 00070 T &operator[](unsigned int idx) { return m_data[idx]; } 00071 00073 const T &operator[](unsigned int idx) const { return m_data[idx]; } 00074 00076 inline operator T() const{ 00077 return x; 00078 } 00079 }; 00080 00082 template<class T> 00083 struct FixedArray<T, 2u>{ 00084 union{ 00085 T m_data[2]; 00086 struct { T x; T y; }; 00087 }; 00088 00090 FixedArray(){} 00091 00093 FixedArray(const T &x, const T &y) : x(x),y (y){} 00094 00096 T &operator[](unsigned int idx) { return m_data[idx]; } 00097 00099 const T &operator[](unsigned int idx) const { return m_data[idx]; } 00100 }; 00101 00102 00104 template<class T> 00105 struct FixedArray<T, 3u>{ 00106 00108 FixedArray(){} 00109 00111 FixedArray(const T &x, const T &y, const T &z) : x(x), y(y), z(z){} 00112 00113 union{ 00114 T m_data[3]; 00115 struct { T x; T y; T z; }; 00116 }; 00118 T &operator[](unsigned int idx) { return m_data[idx]; } 00119 00121 const T &operator[](unsigned int idx) const { return m_data[idx]; } 00122 }; 00123 00125 template<class T> 00126 struct FixedArray<T, 4u>{ 00127 00129 FixedArray(){} 00130 00132 FixedArray(const T &x, const T &y, const T &z, const T &w) : x(x), y(y), z(z), w(w){} 00133 00134 union{ 00135 T m_data[4]; 00136 struct { 00137 T x; 00138 T y; 00139 T z; 00140 union { 00141 T h; 00142 T w; 00143 }; 00144 }; 00145 }; 00146 00148 T &operator[](unsigned int idx) { return m_data[idx]; } 00149 00151 const T &operator[](unsigned int idx) const { return m_data[idx]; } 00152 }; 00153 00154 } // namespace utils 00155 } // namespace icl 00156