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
MatrixDiag.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: MatrixDiag.h,v 1.17 2007-06-23 15:59:00 opetzold Exp $ 00022 */ 00023 00024 #ifndef TVMET_XPR_MATRIX_DIAG_H 00025 #define TVMET_XPR_MATRIX_DIAG_H 00026 00027 namespace tvmet { 00028 00029 00030 /** 00031 * \class XprMatrixDiag MatrixDiag.h "tvmet/xpr/MatrixDiag.h" 00032 * \brief Expression on matrix used for access on the diagonal vector. 00033 */ 00034 template<class E, std::size_t Sz> 00035 class XprMatrixDiag 00036 : public TvmetBase< XprMatrixDiag<E, Sz> > 00037 { 00038 XprMatrixDiag(); 00039 XprMatrixDiag& operator=(const XprMatrixDiag<E, Sz>&); 00040 00041 public: 00042 typedef typename E::value_type value_type; 00043 00044 public: 00045 /** Complexity counter. */ 00046 enum { 00047 ops_expr = E::ops, 00048 ops = ops_expr/Sz 00049 }; 00050 00051 public: 00052 /** Constructor. */ 00053 explicit XprMatrixDiag(const E& e) 00054 : m_expr(e) 00055 { } 00056 00057 /** Copy Constructor. Not explicit! */ 00058 #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR) 00059 XprMatrixDiag(const XprMatrixDiag& e) 00060 : m_expr(e.m_expr) 00061 { } 00062 #endif 00063 00064 /** index operator for arrays/matrizes */ 00065 value_type operator()(std::size_t i) const { 00066 TVMET_RT_CONDITION(i < Sz, "XprMatrixDiag Bounce Violation") 00067 return m_expr(i, i); 00068 } 00069 00070 public: // debugging Xpr parse tree 00071 void print_xpr(std::ostream& os, std::size_t l=0) const { 00072 os << IndentLevel(l++) 00073 << "XprMatrixDiag[O=" << ops << ", (O=" << ops_expr << ")]<" 00074 << std::endl; 00075 m_expr.print_xpr(os, l); 00076 os << IndentLevel(l) 00077 << "Sz=" << Sz << std::endl 00078 << IndentLevel(--l) << ">" 00079 << ((l != 0) ? "," : "") << std::endl; 00080 } 00081 00082 private: 00083 const E m_expr; 00084 }; 00085 00086 00087 } // namespace tvmet 00088 00089 #endif // TVMET_XPR_MATRIX_DIAG_H 00090 00091 // Local Variables: 00092 // mode:C++ 00093 // tab-width:8 00094 // End:
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