zip
parent
22c44ca551
commit
97b6efb1ff
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@ -1,6 +1,6 @@
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cmake_minimum_required(VERSION 3.20)
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include(cmake/color.cmake)
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set(BLT_VERSION 1.1.5)
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set(BLT_VERSION 1.1.6)
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set(BLT_TARGET BLT)
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@ -129,7 +129,7 @@ namespace blt::iterator
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}
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};
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namespace impls
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namespace impl
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{
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template<typename Derived>
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class skip_t
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@ -227,13 +227,13 @@ namespace blt::iterator
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};
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}
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template<typename IterBase, typename... Base>
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class iterator_container : public impls::take_t<iterator_container<IterBase, Base...>>,
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public impls::skip_t<iterator_container<IterBase, Base...>>,
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public Base ...
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template<typename IterBase>
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class iterator_container : public impl::take_t<iterator_container<IterBase>>,
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public impl::skip_t<iterator_container<IterBase>>
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{
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public:
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using iterator_category = typename IterBase::iterator_category;
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using iterator = IterBase;
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iterator_container(IterBase begin, IterBase end): m_begin(std::move(begin)), m_end(std::move(end))
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{}
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@ -247,7 +247,8 @@ namespace blt::iterator
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static_assert((std::is_same_v<typename IterBase::iterator_category, std::bidirectional_iterator_tag> ||
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std::is_same_v<typename IterBase::iterator_category, std::random_access_iterator_tag>),
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".rev() must be used with bidirectional (or better) iterators!");
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return iterator_container < std::reverse_iterator<IterBase>, Base...>{std::reverse_iterator<IterBase>{end()}, std::reverse_iterator<IterBase>{begin()}};
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return iterator_container<std::reverse_iterator<IterBase>>{std::reverse_iterator<IterBase>{end()},
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std::reverse_iterator<IterBase>{begin()}};
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}
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auto begin() const
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@ -97,6 +97,18 @@ namespace blt
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return min;
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}
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};
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// template<typename Iter>
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// struct zip_wrapper<Iter> : public Iter
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// {
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// using iterator_category = typename std::iterator_traits<Iter>::iterator_category;
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// using value_type = typename std::iterator_traits<Iter>::value_type;
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// using difference_type = typename std::iterator_traits<Iter>::difference_type;
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// using pointer = typename std::iterator_traits<Iter>::pointer;
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// using reference = typename std::iterator_traits<Iter>::reference;
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//
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// using Iter::Iter;
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// };
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}
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template<typename Iter>
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@ -112,17 +124,20 @@ namespace blt
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};
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template<typename... Iter>
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class zip_iterator_storage : public iterator::iterator_container<iterator::zip_wrapper<Iter...>>
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class zip_iterator_container : public iterator::iterator_container<iterator::zip_wrapper<Iter...>>
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{
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public:
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using iterator::iterator_container<iterator::zip_wrapper<Iter...>>::iterator_container;
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explicit zip_iterator_storage(iterator_pair<Iter>... iterator_pairs):
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explicit zip_iterator_container(iterator_pair<Iter>... iterator_pairs):
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iterator::iterator_container<iterator::zip_wrapper<Iter...>>(iterator::zip_wrapper<Iter...>{std::move(iterator_pairs.begin)...},
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iterator::zip_wrapper<Iter...>{std::move(iterator_pairs.end)...})
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{}
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};
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namespace impl
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{
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template<typename Derived>
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class zip_t
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{
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@ -130,20 +145,21 @@ namespace blt
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template<typename... Iter>
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auto zip(iterator_pair<Iter>... iterator_pairs)
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{
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iterator::iterator_container<iterator::zip_wrapper<Iter...>>(iterator::zip_wrapper<Iter...>{std::move(iterator_pairs.begin)...},
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zip_iterator_container(iterator::zip_wrapper<Iter...>{std::move(iterator_pairs.begin)...},
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iterator::zip_wrapper<Iter...>{std::move(iterator_pairs.end)...});
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}
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};
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}
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/*
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* CTAD for the zip containers
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*/
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template<typename... Iter>
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zip_iterator_storage(iterator_pair<Iter>...) -> zip_iterator_storage<Iter...>;
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zip_iterator_container(iterator_pair<Iter>...) -> zip_iterator_container<Iter...>;
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template<typename... Iter>
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zip_iterator_storage(std::initializer_list<Iter>...) -> zip_iterator_storage<Iter...>;
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zip_iterator_container(std::initializer_list<Iter>...) -> zip_iterator_container<Iter...>;
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/*
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@ -153,7 +169,7 @@ namespace blt
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template<typename... Container>
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auto zip(Container& ... container)
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{
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return zip_iterator_storage{iterator_pair{container.begin(), container.end()}...};
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return zip_iterator_container{iterator_pair{container.begin(), container.end()}...};
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}
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}
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