This is the Tiny Vector Matrix Expression Templates library found at http://tvmet.sourceforge.net. It is the fastest and most compact matrix lib out there (for < 10x10 matricies). I have done some minor tweaks to make it compile for mbed. For examples and hints on how to use, see: http://tvmet.sourceforge.net/usage.html
Dependents: Eurobot_2012_Secondary
Vector.h
00001 /* 00002 * Tiny Vector Matrix Library 00003 * Dense Vector Matrix Libary of Tiny size using Expression Templates 00004 * 00005 * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net> 00006 * 00007 * This library is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * This library is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU lesser General Public 00018 * License along with this library; if not, write to the Free Software 00019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00020 * 00021 * $Id: Vector.h,v 1.28 2007-06-23 15:59:00 opetzold Exp $ 00022 */ 00023 00024 #ifndef TVMET_XPR_VECTOR_H 00025 #define TVMET_XPR_VECTOR_H 00026 00027 #include <tvmet/meta/Vector.h> 00028 #include <tvmet/loop/Vector.h> 00029 00030 namespace tvmet { 00031 00032 00033 /* forwards */ 00034 template <class T, std::size_t Sz> class Vector; 00035 00036 /** 00037 * \class XprVector Vector.h "tvmet/xpr/Vector.h" 00038 * \brief Represents the expression for vectors at any node in the parse tree. 00039 * 00040 * Specifically, XprVector is the class that wraps the expression, and the 00041 * expression itself is represented by the template parameter E. The 00042 * class XprVector is known as an anonymizing expression wrapper because 00043 * it can hold any subexpression of arbitrary complexity, allowing 00044 * clients to work with any expression by holding on to it via the 00045 * wrapper, without having to know the name of the type object that 00046 * actually implements the expression. 00047 * \note leave the Ctors non-explicit to allow implicit type conversation. 00048 */ 00049 template<class E, std::size_t Sz> 00050 class XprVector : public TvmetBase< XprVector<E, Sz> > 00051 { 00052 XprVector(); 00053 XprVector& operator=(const XprVector&); 00054 00055 public: 00056 typedef typename E::value_type value_type; 00057 00058 public: 00059 /** Dimensions. */ 00060 enum { 00061 Size = Sz /**< The size of the vector. */ 00062 }; 00063 00064 public: 00065 /** Complexity counter */ 00066 enum { 00067 ops_assign = Size, 00068 ops = E::ops, 00069 use_meta = ops_assign < TVMET_COMPLEXITY_V_ASSIGN_TRIGGER ? true : false 00070 }; 00071 00072 public: 00073 /** Constructor. */ 00074 explicit XprVector(const E& e) 00075 : m_expr(e) 00076 { } 00077 00078 /** Copy Constructor. Not explicit! */ 00079 #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR) 00080 XprVector(const XprVector& e) 00081 : m_expr(e.m_expr) 00082 { } 00083 #endif 00084 00085 /** const index operator for vectors. */ 00086 value_type operator()(std::size_t i) const { 00087 TVMET_RT_CONDITION(i < Size, "XprVector Bounce Violation") 00088 return m_expr(i); 00089 } 00090 00091 /** const index operator for vectors. */ 00092 value_type operator[](std::size_t i) const { 00093 return this->operator()(i); 00094 } 00095 00096 private: 00097 /** Wrapper for meta assign. */ 00098 template<class Dest, class Src, class Assign> 00099 static inline 00100 void do_assign(dispatch<true>, Dest& dest, const Src& src, const Assign& assign_fn) { 00101 meta::Vector<Size, 0>::assign(dest, src, assign_fn); 00102 } 00103 00104 /** Wrapper for loop assign. */ 00105 template<class Dest, class Src, class Assign> 00106 static inline 00107 void do_assign(dispatch<false>, Dest& dest, const Src& src, const Assign& assign_fn) { 00108 loop::Vector<Size>::assign(dest, src, assign_fn); 00109 } 00110 00111 public: 00112 /** assign this expression to Vector dest. */ 00113 template<class Dest, class Assign> 00114 void assign_to(Dest& dest, const Assign& assign_fn) const { 00115 /* here is a way for caching, since each complex 'Node' 00116 is of type XprVector. */ 00117 do_assign(dispatch<use_meta>(), dest, *this, assign_fn); 00118 } 00119 00120 public: // debugging Xpr parse tree 00121 void print_xpr(std::ostream& os, std::size_t l=0) const { 00122 os << IndentLevel(l++) 00123 << "XprVector[" 00124 << (use_meta ? "M" : "L") << ", O=" << ops << "]<" 00125 << std::endl; 00126 m_expr.print_xpr(os, l); 00127 os << IndentLevel(l) 00128 << "Sz=" << Size << std::endl; 00129 os << IndentLevel(--l) << ">" 00130 << ((l != 0) ? "," : "") << std::endl; 00131 } 00132 00133 private: 00134 const E m_expr; 00135 }; 00136 00137 00138 } // namespace tvmet 00139 00140 #include <tvmet/Functional.h> 00141 00142 #include <tvmet/xpr/BinOperator.h> 00143 #include <tvmet/xpr/UnOperator.h> 00144 #include <tvmet/xpr/Literal.h> 00145 00146 #include <tvmet/xpr/VectorFunctions.h> 00147 #include <tvmet/xpr/VectorBinaryFunctions.h> 00148 #include <tvmet/xpr/VectorUnaryFunctions.h> 00149 #include <tvmet/xpr/VectorOperators.h> 00150 #include <tvmet/xpr/Eval.h> 00151 00152 #endif // TVMET_XPR_VECTOR_H 00153 00154 // Local Variables: 00155 // mode:C++ 00156 // tab-width:8 00157 // End:
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