实现excel报表文件生成功能

thirdparty/OpenXLSX/include/headers/XLCellIterator.hpp

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+/*
+
+   ____                               ____      ___ ____       ____  ____      ___
+  6MMMMb                              `MM(      )M' `MM'      6MMMMb\`MM(      )M'
+ 8P    Y8                              `MM.     d'   MM      6M'    ` `MM.     d'
+6M      Mb __ ____     ____  ___  __    `MM.   d'    MM      MM        `MM.   d'
+MM      MM `M6MMMMb   6MMMMb `MM 6MMb    `MM. d'     MM      YM.        `MM. d'
+MM      MM  MM'  `Mb 6M'  `Mb MMM9 `Mb    `MMd       MM       YMMMMb     `MMd
+MM      MM  MM    MM MM    MM MM'   MM     dMM.      MM           `Mb     dMM.
+MM      MM  MM    MM MMMMMMMM MM    MM    d'`MM.     MM            MM    d'`MM.
+YM      M9  MM    MM MM       MM    MM   d'  `MM.    MM            MM   d'  `MM.
+ 8b    d8   MM.  ,M9 YM    d9 MM    MM  d'    `MM.   MM    / L    ,M9  d'    `MM.
+  YMMMM9    MMYMMM9   YMMMM9 _MM_  _MM_M(_    _)MM_ _MMMMMMM MYMMMM9 _M(_    _)MM_
+            MM
+            MM
+           _MM_
+
+  Copyright (c) 2018, Kenneth Troldal Balslev
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+  - Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  - Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+  - Neither the name of the author nor the
+    names of any contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ */
+
+#ifndef OPENXLSX_XLCELLITERATOR_HPP
+#define OPENXLSX_XLCELLITERATOR_HPP
+
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#pragma warning(disable : 4275)
+
+#include <algorithm>
+
+#include "OpenXLSX-Exports.hpp"
+#include "XLCell.hpp"
+#include "XLCellReference.hpp"
+#include "XLIterator.hpp"
+#include "XLXmlParser.hpp"
+
+namespace OpenXLSX
+{
+    class OPENXLSX_EXPORT XLCellIterator
+    {
+    public:
+        using iterator_category = std::forward_iterator_tag;
+        using value_type        = XLCell;
+        using difference_type   = int64_t;
+        using pointer           = XLCell*;
+        using reference         = XLCell&;
+
+        /**
+         * @brief
+         * @param cellRange
+         * @param loc
+         */
+        explicit XLCellIterator(const XLCellRange& cellRange, XLIteratorLocation loc);
+
+        /**
+         * @brief
+         */
+        ~XLCellIterator();
+
+        /**
+         * @brief
+         * @param other
+         */
+        XLCellIterator(const XLCellIterator& other);
+
+        /**
+         * @brief
+         * @param other
+         */
+        [[maybe_unused]] XLCellIterator(XLCellIterator&& other) noexcept;
+
+        /**
+         * @brief
+         * @param other
+         * @return
+         */
+        XLCellIterator& operator=(const XLCellIterator& other);
+
+        /**
+         * @brief
+         * @param other
+         * @return
+         */
+        XLCellIterator& operator=(XLCellIterator&& other) noexcept;
+
+        /**
+         * @brief
+         * @return
+         */
+        XLCellIterator& operator++();
+
+        /**
+         * @brief
+         * @return
+         */
+        XLCellIterator operator++(int);    // NOLINT
+
+        /**
+         * @brief
+         * @return
+         */
+        reference operator*();
+
+        /**
+         * @brief
+         * @return
+         */
+        pointer operator->();
+
+        /**
+         * @brief
+         * @param rhs
+         * @return
+         */
+        bool operator==(const XLCellIterator& rhs) const;
+
+        /**
+         * @brief
+         * @param rhs
+         * @return
+         */
+        bool operator!=(const XLCellIterator& rhs) const;
+
+        /**
+         * @brief
+         * @param last
+         * @return
+         */
+        uint64_t distance(const XLCellIterator& last);
+
+    private:
+        std::unique_ptr<XMLNode> m_dataNode;             /**< */
+        XLCellReference          m_topLeft;              /**< The cell reference of the first cell in the range */
+        XLCellReference          m_bottomRight;          /**< The cell reference of the last cell in the range */
+        XLCell                   m_currentCell;          /**< */
+        XLSharedStrings          m_sharedStrings;        /**< */
+        bool                     m_endReached { false }; /**< */
+    };
+
+}    // namespace OpenXLSX
+
+// ===== Template specialization for std::distance.
+namespace std    // NOLINT
+{
+    using OpenXLSX::XLCellIterator;
+    template<>
+    inline typename std::iterator_traits<XLCellIterator>::difference_type distance<XLCellIterator>(XLCellIterator first,
+                                                                                                   XLCellIterator last)
+    {
+        return static_cast<typename std::iterator_traits<XLCellIterator>::difference_type>(first.distance(last));
+    }
+}    // namespace std
+
+#pragma warning(pop)
+#endif    // OPENXLSX_XLCELLITERATOR_HPP