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Eurobot2012_Primary

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tvmet/util/Incrementor.h@26:0995f61cb7b8, 2012-10-17 (annotated)

Committer:
narshu
Date:
Wed Oct 17 22:22:47 2012 +0000
Revision:
26:0995f61cb7b8
Parent:
25:143b19c1fb05 
Eurobot 2012 Primary;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
narshu 25:143b19c1fb05 1 /*
narshu 25:143b19c1fb05 2 * Tiny Vector Matrix Library
narshu 25:143b19c1fb05 3 * Dense Vector Matrix Libary of Tiny size using Expression Templates
narshu 25:143b19c1fb05 4 *
narshu 25:143b19c1fb05 5 * Copyright (C) 2001 - 2007 Olaf Petzold <opetzold@users.sourceforge.net>
narshu 25:143b19c1fb05 6 *
narshu 25:143b19c1fb05 7 * This library is free software; you can redistribute it and/or
narshu 25:143b19c1fb05 8 * modify it under the terms of the GNU Lesser General Public
narshu 25:143b19c1fb05 9 * License as published by the Free Software Foundation; either
narshu 25:143b19c1fb05 10 * version 2.1 of the License, or (at your option) any later version.
narshu 25:143b19c1fb05 11 *
narshu 25:143b19c1fb05 12 * This library is distributed in the hope that it will be useful,
narshu 25:143b19c1fb05 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
narshu 25:143b19c1fb05 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
narshu 25:143b19c1fb05 15 * Lesser General Public License for more details.
narshu 25:143b19c1fb05 16 *
narshu 25:143b19c1fb05 17 * You should have received a copy of the GNU Lesser General Public
narshu 25:143b19c1fb05 18 * License along with this library; if not, write to the Free Software
narshu 25:143b19c1fb05 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
narshu 25:143b19c1fb05 20 *
narshu 25:143b19c1fb05 21 * $Id: Incrementor.h,v 1.7 2007-06-23 15:58:59 opetzold Exp $
narshu 25:143b19c1fb05 22 */
narshu 25:143b19c1fb05 23
narshu 25:143b19c1fb05 24 #ifndef TVMET_UTIL_INCREMENTOR_H
narshu 25:143b19c1fb05 25 #define TVMET_UTIL_INCREMENTOR_H
narshu 25:143b19c1fb05 26
narshu 25:143b19c1fb05 27 namespace tvmet {
narshu 25:143b19c1fb05 28
narshu 25:143b19c1fb05 29 namespace util {
narshu 25:143b19c1fb05 30
narshu 25:143b19c1fb05 31
narshu 25:143b19c1fb05 32 /**
narshu 25:143b19c1fb05 33 * \class Incrementor Incrementor.h "tvmet/util/Incrementor.h"
narshu 25:143b19c1fb05 34 * \brief A simple incrementor class.
narshu 25:143b19c1fb05 35 * The start value is given at construction time. After
narshu 25:143b19c1fb05 36 * each access the class increments the internal counter.
narshu 25:143b19c1fb05 37 * \ingroup _util_function
narshu 25:143b19c1fb05 38 *
narshu 25:143b19c1fb05 39 * \par Example:
narshu 25:143b19c1fb05 40 * \code
narshu 25:143b19c1fb05 41 * #include <algorithm>
narshu 25:143b19c1fb05 42 *
narshu 25:143b19c1fb05 43 * using namespace tvmet;
narshu 25:143b19c1fb05 44 *
narshu 25:143b19c1fb05 45 * ...
narshu 25:143b19c1fb05 46 *
narshu 25:143b19c1fb05 47 * std::generate(m1.begin(), m1.end(),
narshu 25:143b19c1fb05 48 * util::Incrementor<typename matrix_type::value_type>());
narshu 25:143b19c1fb05 49 * \endcode
narshu 25:143b19c1fb05 50 */
narshu 25:143b19c1fb05 51 template<class T>
narshu 25:143b19c1fb05 52 struct Incrementor
narshu 25:143b19c1fb05 53 {
narshu 25:143b19c1fb05 54 Incrementor(T start=0) : m_inc(start) { }
narshu 25:143b19c1fb05 55 T operator()() { m_inc+=1; return m_inc; }
narshu 25:143b19c1fb05 56
narshu 25:143b19c1fb05 57 private:
narshu 25:143b19c1fb05 58 T m_inc;
narshu 25:143b19c1fb05 59 };
narshu 25:143b19c1fb05 60
narshu 25:143b19c1fb05 61
narshu 25:143b19c1fb05 62 #if defined(TVMET_HAVE_COMPLEX)
narshu 25:143b19c1fb05 63 /**
narshu 25:143b19c1fb05 64 * \class Incrementor< std::complex<T> > Incrementor.h "tvmet/util/Incrementor.h"
narshu 25:143b19c1fb05 65 * \brief Specialized Incrementor class.
narshu 25:143b19c1fb05 66 * \ingroup _util_function
narshu 25:143b19c1fb05 67 */
narshu 25:143b19c1fb05 68 template<class T>
narshu 25:143b19c1fb05 69 struct Incrementor< std::complex<T> > {
narshu 25:143b19c1fb05 70 Incrementor(const std::complex<T>& start=0)
narshu 25:143b19c1fb05 71 : m_inc(start) { }
narshu 25:143b19c1fb05 72 std::complex<T> operator()() {
narshu 25:143b19c1fb05 73 m_inc += std::complex<T>(1,1);
narshu 25:143b19c1fb05 74 return m_inc;
narshu 25:143b19c1fb05 75 }
narshu 25:143b19c1fb05 76 private:
narshu 25:143b19c1fb05 77 std::complex<T> m_inc;
narshu 25:143b19c1fb05 78 };
narshu 25:143b19c1fb05 79 #endif // defined(TVMET_HAVE_COMPLEX)
narshu 25:143b19c1fb05 80
narshu 25:143b19c1fb05 81
narshu 25:143b19c1fb05 82 } // namespace util
narshu 25:143b19c1fb05 83
narshu 25:143b19c1fb05 84 } // namespace tvmet
narshu 25:143b19c1fb05 85
narshu 25:143b19c1fb05 86 #endif // TVMET_UTIL_INCREMENTOR_H
narshu 25:143b19c1fb05 87
narshu 25:143b19c1fb05 88 // Local Variables:
narshu 25:143b19c1fb05 89 // mode:C++
narshu 25:143b19c1fb05 90 // tab-width:8
narshu 25:143b19c1fb05 91 // End: