(C++) LoopReader
January 25, 2018 · View on GitHub
(C++) LoopReader
./CppLoopReader/CppLoopReader.pri
INCLUDEPATH += \ ../../Classes/CppLoopReader SOURCES += # ../../Classes/CppLoopReader/loopreader.cpp HEADERS += \ ../../Classes/CppLoopReader/loopreader.h OTHER_FILES += \ ../../Classes/CppLoopReader/Licence.txt
./CppLoopReader/loopreader.h
//--------------------------------------------------------------------------- /* LoopReader, class that reads a sequence looped Copyright 2010-2015 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- // From http://www.richelbilderbeek.nl/CppLoopReader.htm //--------------------------------------------------------------------------- #ifndef LOOPREADER_H #define LOOPREADER_H #include <cassert> #include <string> #include <vector> namespace ribi { // From http://www.richelbilderbeek.nl/CppLoopReader.htm //Reads a container in a loop: // when the end is reached, it starts // reading from the beginning again template <class Iterator> struct LoopReader { explicit LoopReader(const Iterator begin, const Iterator end) : m_begin(begin), m_end(end), m_cur(begin) { assert(m_begin != m_end); } const Iterator Read() const noexcept { return m_cur; } void Next() noexcept { assert(m_cur != m_end); ++m_cur; if (m_cur == m_end) m_cur = m_begin; } static std::string GetVersion() noexcept { return "1.2"; } static std::vector<std::string> GetVersionHistory() noexcept { return { "2009-08-26: Version 1.0: initial version", "2011-03-06: Version 1.1: added GetVersion and GetVersionHistory member functions", "2013-11-25: Version 1.2: added some asserts, added noexcept" }; } private: const Iterator m_begin; const Iterator m_end; //The current address to read Iterator m_cur; }; } //~namespace ribi #endif // LOOPREADER_H