Colour sensors calibrated
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tvmet/xpr/BinOperator.h
- Committer:
- xiaxia686
- Date:
- 2013-04-12
- Revision:
- 46:adcd57a5e402
- Parent:
- 15:9c5aaeda36dc
File content as of revision 46:adcd57a5e402:
/* * Tiny Vector Matrix Library * Dense Vector Matrix Libary of Tiny size using Expression Templates * * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * $Id: BinOperator.h,v 1.19 2007-06-23 15:58:59 opetzold Exp $ */ #ifndef TVMET_XPR_BINOPERATOR_H #define TVMET_XPR_BINOPERATOR_H #include <tvmet/TypePromotion.h> namespace tvmet { /** * \class XprBinOp BinOperator.h "tvmet/xpr/BinOperator.h" * \brief Binary operators working on two sub expressions. * * On acessing using the index operator() the binary operation will be * evaluated at compile time. */ template<class BinOp, class E1, class E2> class XprBinOp : public TvmetBase< XprBinOp<BinOp, E1, E2> > { XprBinOp(); XprBinOp& operator=(const XprBinOp&); public: typedef typename BinOp::value_type value_type; public: /** Complexity counter. */ enum { ops_lhs = E1::ops, ops_rhs = E2::ops, ops = 2 * (ops_lhs + ops_rhs) // lhs op rhs }; public: /** Constructor for two expressions. */ explicit XprBinOp(const E1& lhs, const E2& rhs) : m_lhs(lhs), m_rhs(rhs) { } /** Copy Constructor. Not explicit! */ #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR) XprBinOp(const XprBinOp& e) : m_lhs(e.m_lhs), m_rhs(e.m_rhs) { } #endif /** Index operator, evaluates the expression inside. */ value_type operator()(std::size_t i) const { return BinOp::apply_on(m_lhs(i), m_rhs(i)); } /** Index operator for arrays/matrices */ value_type operator()(std::size_t i, std::size_t j) const { return BinOp::apply_on(m_lhs(i, j), m_rhs(i, j)); } public: // debugging Xpr parse tree void print_xpr(std::ostream& os, std::size_t l=0) const { os << IndentLevel(l++) << "XprBinOp[O="<< ops << ", (O1=" << ops_lhs << ", O2=" << ops_rhs << ")]<" << std::endl; BinOp::print_xpr(os, l); m_lhs.print_xpr(os, l); m_rhs.print_xpr(os, l); os << IndentLevel(--l) << ">," << std::endl; } private: const E1 m_lhs; const E2 m_rhs; }; } // namespace tvmet #endif // TVMET_XPR_BINOPERATOR_H // Local Variables: // mode:C++ // tab-width:8 // End: