38 lines
968 B
C++
38 lines
968 B
C++
/*
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* A Widget Iterator Template
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* Copyright(C) 2017-2018 Jinhao(cnjinhao@hotmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file: nana/gui/widgets/detail/widget_iterator.hpp
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* @description: widget_iterator is the base class provided to simplify definitions of the required types for widget iterators.
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* It is provided because of deprecation of std::iterator in C++17
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*/
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#ifndef NANA_GUI_WIDGET_ITERATOR_INCLUDED
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#define NANA_GUI_WIDGET_ITERATOR_INCLUDED
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#include <cstddef> //provides std::ptrdiff_t
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namespace nana {
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namespace widgets {
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namespace detail
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{
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template<typename Category, typename T>
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class widget_iterator
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{
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public:
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using iterator_category = Category;
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using value_type = T;
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using difference_type = std::ptrdiff_t;
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using pointer = T * ;
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using reference = T & ;
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};
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}
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}
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}
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#endif
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