Ryan Savitski / Mbed 2 deprecated ICRSEurobot14

2014 Eurobot fork

Dependencies:   mbed-rtos mbed QEI

tvmet/xpr/UnOperator.h@15:9c5aaeda36dc, 2013-04-06 (annotated)

Committer:
madcowswe
Date:
Sat Apr 06 20:57:54 2013 +0000
Revision:
15:9c5aaeda36dc
Encoders fairly tuned, still has random noise in it

Who changed what in which revision?

UserRevisionLine numberNew contents of line
madcowswe 15:9c5aaeda36dc 1 /*
madcowswe 15:9c5aaeda36dc 2 * Tiny Vector Matrix Library
madcowswe 15:9c5aaeda36dc 3 * Dense Vector Matrix Libary of Tiny size using Expression Templates
madcowswe 15:9c5aaeda36dc 4 *
madcowswe 15:9c5aaeda36dc 5 * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net>
madcowswe 15:9c5aaeda36dc 6 *
madcowswe 15:9c5aaeda36dc 7 * This library is free software; you can redistribute it and/or
madcowswe 15:9c5aaeda36dc 8 * modify it under the terms of the GNU Lesser General Public
madcowswe 15:9c5aaeda36dc 9 * License as published by the Free Software Foundation; either
madcowswe 15:9c5aaeda36dc 10 * version 2.1 of the License, or (at your option) any later version.
madcowswe 15:9c5aaeda36dc 11 *
madcowswe 15:9c5aaeda36dc 12 * This library is distributed in the hope that it will be useful,
madcowswe 15:9c5aaeda36dc 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
madcowswe 15:9c5aaeda36dc 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
madcowswe 15:9c5aaeda36dc 15 * Lesser General Public License for more details.
madcowswe 15:9c5aaeda36dc 16 *
madcowswe 15:9c5aaeda36dc 17 * You should have received a copy of the GNU Lesser General Public
madcowswe 15:9c5aaeda36dc 18 * License along with this library; if not, write to the Free Software
madcowswe 15:9c5aaeda36dc 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
madcowswe 15:9c5aaeda36dc 20 *
madcowswe 15:9c5aaeda36dc 21 * $Id: UnOperator.h,v 1.17 2007-06-23 15:59:00 opetzold Exp $
madcowswe 15:9c5aaeda36dc 22 */
madcowswe 15:9c5aaeda36dc 23
madcowswe 15:9c5aaeda36dc 24 #ifndef TVMET_XPR_UNOPERATOR_H
madcowswe 15:9c5aaeda36dc 25 #define TVMET_XPR_UNOPERATOR_H
madcowswe 15:9c5aaeda36dc 26
madcowswe 15:9c5aaeda36dc 27 namespace tvmet {
madcowswe 15:9c5aaeda36dc 28
madcowswe 15:9c5aaeda36dc 29
madcowswe 15:9c5aaeda36dc 30 /**
madcowswe 15:9c5aaeda36dc 31 * \class XprUnOp UnOperator.h "tvmet/xpr/UnOperator.h"
madcowswe 15:9c5aaeda36dc 32 * \brief Unary operator working on one subexpression.
madcowswe 15:9c5aaeda36dc 33 *
madcowswe 15:9c5aaeda36dc 34 * Using the access operator() the unary operation will be evaluated.
madcowswe 15:9c5aaeda36dc 35 */
madcowswe 15:9c5aaeda36dc 36 template<class UnOp, class E>
madcowswe 15:9c5aaeda36dc 37 class XprUnOp
madcowswe 15:9c5aaeda36dc 38 : public TvmetBase< XprUnOp<UnOp, E> >
madcowswe 15:9c5aaeda36dc 39 {
madcowswe 15:9c5aaeda36dc 40 XprUnOp();
madcowswe 15:9c5aaeda36dc 41 XprUnOp& operator=(const XprUnOp&);
madcowswe 15:9c5aaeda36dc 42
madcowswe 15:9c5aaeda36dc 43 public:
madcowswe 15:9c5aaeda36dc 44 typedef typename UnOp::value_type value_type;
madcowswe 15:9c5aaeda36dc 45
madcowswe 15:9c5aaeda36dc 46 public:
madcowswe 15:9c5aaeda36dc 47 /** Complexity counter. */
madcowswe 15:9c5aaeda36dc 48 enum {
madcowswe 15:9c5aaeda36dc 49 ops_expr = E::ops,
madcowswe 15:9c5aaeda36dc 50 ops = 1 * ops_expr
madcowswe 15:9c5aaeda36dc 51 };
madcowswe 15:9c5aaeda36dc 52
madcowswe 15:9c5aaeda36dc 53 public:
madcowswe 15:9c5aaeda36dc 54 /** Constructor for an expressions. */
madcowswe 15:9c5aaeda36dc 55 explicit XprUnOp(const E& e)
madcowswe 15:9c5aaeda36dc 56 : m_expr(e)
madcowswe 15:9c5aaeda36dc 57 { }
madcowswe 15:9c5aaeda36dc 58
madcowswe 15:9c5aaeda36dc 59 /** Copy Constructor. Not explicit! */
madcowswe 15:9c5aaeda36dc 60 #if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR)
madcowswe 15:9c5aaeda36dc 61 XprUnOp(const XprUnOp& e)
madcowswe 15:9c5aaeda36dc 62 : m_expr(e.m_expr)
madcowswe 15:9c5aaeda36dc 63 { }
madcowswe 15:9c5aaeda36dc 64 #endif
madcowswe 15:9c5aaeda36dc 65
madcowswe 15:9c5aaeda36dc 66 /** Index operator, evaluates the expression inside. */
madcowswe 15:9c5aaeda36dc 67 value_type operator()(std::size_t i) const {
madcowswe 15:9c5aaeda36dc 68 return UnOp::apply_on(m_expr(i));
madcowswe 15:9c5aaeda36dc 69 }
madcowswe 15:9c5aaeda36dc 70
madcowswe 15:9c5aaeda36dc 71 /** index operator for arrays/matrices. */
madcowswe 15:9c5aaeda36dc 72 value_type operator()(std::size_t i, std::size_t j) const {
madcowswe 15:9c5aaeda36dc 73 return UnOp::apply_on(m_expr(i, j));
madcowswe 15:9c5aaeda36dc 74 }
madcowswe 15:9c5aaeda36dc 75
madcowswe 15:9c5aaeda36dc 76 public: // debugging Xpr parse tree
madcowswe 15:9c5aaeda36dc 77 void print_xpr(std::ostream& os, std::size_t l=0) const {
madcowswe 15:9c5aaeda36dc 78 os << IndentLevel(l++)
madcowswe 15:9c5aaeda36dc 79 << "XprUnOp[O="<< ops << ", (O=" << ops_expr << ")]<"
madcowswe 15:9c5aaeda36dc 80 << std::endl;
madcowswe 15:9c5aaeda36dc 81 UnOp::print_xpr(os, l);
madcowswe 15:9c5aaeda36dc 82 m_expr.print_xpr(os, l);
madcowswe 15:9c5aaeda36dc 83 os << IndentLevel(--l)
madcowswe 15:9c5aaeda36dc 84 << ">," << std::endl;
madcowswe 15:9c5aaeda36dc 85 }
madcowswe 15:9c5aaeda36dc 86
madcowswe 15:9c5aaeda36dc 87 private:
madcowswe 15:9c5aaeda36dc 88 const E m_expr;
madcowswe 15:9c5aaeda36dc 89 };
madcowswe 15:9c5aaeda36dc 90
madcowswe 15:9c5aaeda36dc 91
madcowswe 15:9c5aaeda36dc 92 } // namespace tvmet
madcowswe 15:9c5aaeda36dc 93
madcowswe 15:9c5aaeda36dc 94 #endif // TVMET_XPR_UNOPERATOR_H
madcowswe 15:9c5aaeda36dc 95
madcowswe 15:9c5aaeda36dc 96 // Local Variables:
madcowswe 15:9c5aaeda36dc 97 // mode:C++
madcowswe 15:9c5aaeda36dc 98 // tab-width:8
madcowswe 15:9c5aaeda36dc 99 // End: