ICRS Eurobot 2013
Dependencies: mbed mbed-rtos Servo QEI
UnOperator.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: UnOperator.h,v 1.17 2007-06-23 15:59:00 opetzold Exp $ 00022 */ 00023 00024 #ifndef TVMET_XPR_UNOPERATOR_H 00025 #define TVMET_XPR_UNOPERATOR_H 00026 00027 namespace tvmet { 00028 00029 00030 /** 00031 * \class XprUnOp UnOperator.h "tvmet/xpr/UnOperator.h" 00032 * \brief Unary operator working on one subexpression. 00033 * 00034 * Using the access operator() the unary operation will be evaluated. 00035 */ 00036 template<class UnOp, class E> 00037 class XprUnOp 00038 : public TvmetBase< XprUnOp<UnOp, E> > 00039 { 00040 XprUnOp(); 00041 XprUnOp& operator=(const XprUnOp&); 00042 00043 public: 00044 typedef typename UnOp::value_type value_type; 00045 00046 public: 00047 /** Complexity counter. */ 00048 enum { 00049 ops_expr = E::ops, 00050 ops = 1 * ops_expr 00051 }; 00052 00053 public: 00054 /** Constructor for an expressions. */ 00055 explicit XprUnOp(const E& e) 00056 : m_expr(e) 00057 { } 00058 00059 /** Copy Constructor. Not explicit! */ 00060 #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR) 00061 XprUnOp(const XprUnOp& e) 00062 : m_expr(e.m_expr) 00063 { } 00064 #endif 00065 00066 /** Index operator, evaluates the expression inside. */ 00067 value_type operator()(std::size_t i) const { 00068 return UnOp::apply_on(m_expr(i)); 00069 } 00070 00071 /** index operator for arrays/matrices. */ 00072 value_type operator()(std::size_t i, std::size_t j) const { 00073 return UnOp::apply_on(m_expr(i, j)); 00074 } 00075 00076 public: // debugging Xpr parse tree 00077 void print_xpr(std::ostream& os, std::size_t l=0) const { 00078 os << IndentLevel(l++) 00079 << "XprUnOp[O="<< ops << ", (O=" << ops_expr << ")]<" 00080 << std::endl; 00081 UnOp::print_xpr(os, l); 00082 m_expr.print_xpr(os, l); 00083 os << IndentLevel(--l) 00084 << ">," << std::endl; 00085 } 00086 00087 private: 00088 const E m_expr; 00089 }; 00090 00091 00092 } // namespace tvmet 00093 00094 #endif // TVMET_XPR_UNOPERATOR_H 00095 00096 // Local Variables: 00097 // mode:C++ 00098 // tab-width:8 00099 // End:
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