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Eurobot2012_Secondary

Fork of Eurobot_2012_Secondary by Shuto Naruse

tvmet/xpr/UnOperator.h@1:cc2a9eb0bd55, 2012-10-17 (annotated)

Committer:
narshu
Date:
Wed Oct 17 22:25:31 2012 +0000
Revision:
1:cc2a9eb0bd55
Commit before publishing

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narshu 1:cc2a9eb0bd55 1 /*
narshu 1:cc2a9eb0bd55 2 * Tiny Vector Matrix Library
narshu 1:cc2a9eb0bd55 3 * Dense Vector Matrix Libary of Tiny size using Expression Templates
narshu 1:cc2a9eb0bd55 4 *
narshu 1:cc2a9eb0bd55 5 * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net>
narshu 1:cc2a9eb0bd55 6 *
narshu 1:cc2a9eb0bd55 7 * This library is free software; you can redistribute it and/or
narshu 1:cc2a9eb0bd55 8 * modify it under the terms of the GNU Lesser General Public
narshu 1:cc2a9eb0bd55 9 * License as published by the Free Software Foundation; either
narshu 1:cc2a9eb0bd55 10 * version 2.1 of the License, or (at your option) any later version.
narshu 1:cc2a9eb0bd55 11 *
narshu 1:cc2a9eb0bd55 12 * This library is distributed in the hope that it will be useful,
narshu 1:cc2a9eb0bd55 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
narshu 1:cc2a9eb0bd55 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
narshu 1:cc2a9eb0bd55 15 * Lesser General Public License for more details.
narshu 1:cc2a9eb0bd55 16 *
narshu 1:cc2a9eb0bd55 17 * You should have received a copy of the GNU Lesser General Public
narshu 1:cc2a9eb0bd55 18 * License along with this library; if not, write to the Free Software
narshu 1:cc2a9eb0bd55 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
narshu 1:cc2a9eb0bd55 20 *
narshu 1:cc2a9eb0bd55 21 * $Id: UnOperator.h,v 1.17 2007-06-23 15:59:00 opetzold Exp $
narshu 1:cc2a9eb0bd55 22 */
narshu 1:cc2a9eb0bd55 23
narshu 1:cc2a9eb0bd55 24 #ifndef TVMET_XPR_UNOPERATOR_H
narshu 1:cc2a9eb0bd55 25 #define TVMET_XPR_UNOPERATOR_H
narshu 1:cc2a9eb0bd55 26
narshu 1:cc2a9eb0bd55 27 namespace tvmet {
narshu 1:cc2a9eb0bd55 28
narshu 1:cc2a9eb0bd55 29
narshu 1:cc2a9eb0bd55 30 /**
narshu 1:cc2a9eb0bd55 31 * \class XprUnOp UnOperator.h "tvmet/xpr/UnOperator.h"
narshu 1:cc2a9eb0bd55 32 * \brief Unary operator working on one subexpression.
narshu 1:cc2a9eb0bd55 33 *
narshu 1:cc2a9eb0bd55 34 * Using the access operator() the unary operation will be evaluated.
narshu 1:cc2a9eb0bd55 35 */
narshu 1:cc2a9eb0bd55 36 template<class UnOp, class E>
narshu 1:cc2a9eb0bd55 37 class XprUnOp
narshu 1:cc2a9eb0bd55 38 : public TvmetBase< XprUnOp<UnOp, E> >
narshu 1:cc2a9eb0bd55 39 {
narshu 1:cc2a9eb0bd55 40 XprUnOp();
narshu 1:cc2a9eb0bd55 41 XprUnOp& operator=(const XprUnOp&);
narshu 1:cc2a9eb0bd55 42
narshu 1:cc2a9eb0bd55 43 public:
narshu 1:cc2a9eb0bd55 44 typedef typename UnOp::value_type value_type;
narshu 1:cc2a9eb0bd55 45
narshu 1:cc2a9eb0bd55 46 public:
narshu 1:cc2a9eb0bd55 47 /** Complexity counter. */
narshu 1:cc2a9eb0bd55 48 enum {
narshu 1:cc2a9eb0bd55 49 ops_expr = E::ops,
narshu 1:cc2a9eb0bd55 50 ops = 1 * ops_expr
narshu 1:cc2a9eb0bd55 51 };
narshu 1:cc2a9eb0bd55 52
narshu 1:cc2a9eb0bd55 53 public:
narshu 1:cc2a9eb0bd55 54 /** Constructor for an expressions. */
narshu 1:cc2a9eb0bd55 55 explicit XprUnOp(const E& e)
narshu 1:cc2a9eb0bd55 56 : m_expr(e)
narshu 1:cc2a9eb0bd55 57 { }
narshu 1:cc2a9eb0bd55 58
narshu 1:cc2a9eb0bd55 59 /** Copy Constructor. Not explicit! */
narshu 1:cc2a9eb0bd55 60 #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR)
narshu 1:cc2a9eb0bd55 61 XprUnOp(const XprUnOp& e)
narshu 1:cc2a9eb0bd55 62 : m_expr(e.m_expr)
narshu 1:cc2a9eb0bd55 63 { }
narshu 1:cc2a9eb0bd55 64 #endif
narshu 1:cc2a9eb0bd55 65
narshu 1:cc2a9eb0bd55 66 /** Index operator, evaluates the expression inside. */
narshu 1:cc2a9eb0bd55 67 value_type operator()(std::size_t i) const {
narshu 1:cc2a9eb0bd55 68 return UnOp::apply_on(m_expr(i));
narshu 1:cc2a9eb0bd55 69 }
narshu 1:cc2a9eb0bd55 70
narshu 1:cc2a9eb0bd55 71 /** index operator for arrays/matrices. */
narshu 1:cc2a9eb0bd55 72 value_type operator()(std::size_t i, std::size_t j) const {
narshu 1:cc2a9eb0bd55 73 return UnOp::apply_on(m_expr(i, j));
narshu 1:cc2a9eb0bd55 74 }
narshu 1:cc2a9eb0bd55 75
narshu 1:cc2a9eb0bd55 76 public: // debugging Xpr parse tree
narshu 1:cc2a9eb0bd55 77 void print_xpr(std::ostream& os, std::size_t l=0) const {
narshu 1:cc2a9eb0bd55 78 os << IndentLevel(l++)
narshu 1:cc2a9eb0bd55 79 << "XprUnOp[O="<< ops << ", (O=" << ops_expr << ")]<"
narshu 1:cc2a9eb0bd55 80 << std::endl;
narshu 1:cc2a9eb0bd55 81 UnOp::print_xpr(os, l);
narshu 1:cc2a9eb0bd55 82 m_expr.print_xpr(os, l);
narshu 1:cc2a9eb0bd55 83 os << IndentLevel(--l)
narshu 1:cc2a9eb0bd55 84 << ">," << std::endl;
narshu 1:cc2a9eb0bd55 85 }
narshu 1:cc2a9eb0bd55 86
narshu 1:cc2a9eb0bd55 87 private:
narshu 1:cc2a9eb0bd55 88 const E m_expr;
narshu 1:cc2a9eb0bd55 89 };
narshu 1:cc2a9eb0bd55 90
narshu 1:cc2a9eb0bd55 91
narshu 1:cc2a9eb0bd55 92 } // namespace tvmet
narshu 1:cc2a9eb0bd55 93
narshu 1:cc2a9eb0bd55 94 #endif // TVMET_XPR_UNOPERATOR_H
narshu 1:cc2a9eb0bd55 95
narshu 1:cc2a9eb0bd55 96 // Local Variables:
narshu 1:cc2a9eb0bd55 97 // mode:C++
narshu 1:cc2a9eb0bd55 98 // tab-width:8
narshu 1:cc2a9eb0bd55 99 // End: