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Replace gcc's normal_iterator with boost/stl_interfaces/iterator_inte…
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| Original file line number | Diff line number | Diff line change |
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| // Copyright (C) 2020 T. Zachary Laine | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See | ||
| // accompanying file LICENSE_1_0.txt or copy at | ||
| // http://www.boost.org/LICENSE_1_0.txt) | ||
| #ifndef BOOST_STL_INTERFACES_CONFIG_HPP | ||
| #define BOOST_STL_INTERFACES_CONFIG_HPP | ||
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| // Included for definition of __cpp_lib_concepts. | ||
| #include <iterator> | ||
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| #if defined(__cpp_lib_concepts) && defined(__cpp_lib_ranges) && !defined(BOOST_STL_INTERFACES_DISABLE_CONCEPTS) | ||
| #define BOOST_STL_INTERFACES_USE_CONCEPTS 1 | ||
| #else | ||
| #define BOOST_STL_INTERFACES_USE_CONCEPTS 0 | ||
| #endif | ||
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| #if defined(__cpp_explicit_this_parameter) && BOOST_STL_INTERFACES_USE_CONCEPTS && \ | ||
| !defined(BOOST_STL_INTERFACES_DISABLE_DEDUCED_THIS) | ||
| #define BOOST_STL_INTERFACES_USE_DEDUCED_THIS 1 | ||
| #else | ||
| #define BOOST_STL_INTERFACES_USE_DEDUCED_THIS 0 | ||
| #endif | ||
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| // The inline namespaces v1, v2, and v3 represent C++14, C++20, and C++23 and | ||
| // later, respectively. v1 is inline for standards before C++20, and v2 is | ||
| // inline for C++20 and later. Note that this only applies to code for which | ||
| // multiple vI namespace alternatives exist. For example, some instances of | ||
| // the v1 namespace may still be inline, if there is no v2 version of its | ||
| // contents. | ||
| #if !BOOST_STL_INTERFACES_USE_CONCEPTS && !BOOST_STL_INTERFACES_USE_DEDUCED_THIS | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V1 inline namespace v1 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V2 namespace v2 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V3 namespace v3 | ||
| #elif BOOST_STL_INTERFACES_USE_CONCEPTS && !BOOST_STL_INTERFACES_USE_DEDUCED_THIS | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V1 namespace v1 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V2 inline namespace v2 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V3 namespace v3 | ||
| #else | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V1 namespace v1 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V2 namespace v2 | ||
| #define BOOST_STL_INTERFACES_NAMESPACE_V3 inline namespace v3 | ||
| #endif | ||
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| // Copyright (C) 2019 T. Zachary Laine | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See | ||
| // accompanying file LICENSE_1_0.txt or copy at | ||
| // http://www.boost.org/LICENSE_1_0.txt) | ||
| #ifndef BOOST_STL_INTERFACES_FWD_HPP | ||
| #define BOOST_STL_INTERFACES_FWD_HPP | ||
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| #include <Beman/Optional26/detail/stl_interfaces/config.hpp> | ||
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| #if BOOST_STL_INTERFACES_USE_CONCEPTS | ||
| #include <ranges> | ||
| #endif | ||
| #if defined(__cpp_lib_three_way_comparison) | ||
| #include <compare> | ||
| #endif | ||
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| #ifndef BOOST_STL_INTERFACES_DOXYGEN | ||
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| #if defined(_MSC_VER) || defined(__GNUC__) && __GNUC__ < 8 | ||
| #define BOOST_STL_INTERFACES_NO_HIDDEN_FRIEND_CONSTEXPR | ||
| #define BOOST_STL_INTERFACES_HIDDEN_FRIEND_CONSTEXPR | ||
| #else | ||
| #define BOOST_STL_INTERFACES_HIDDEN_FRIEND_CONSTEXPR constexpr | ||
| #endif | ||
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| #if defined(__GNUC__) && __GNUC__ < 9 | ||
| #define BOOST_STL_INTERFACES_CONCEPT concept bool | ||
| #else | ||
| #define BOOST_STL_INTERFACES_CONCEPT concept | ||
| #endif | ||
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| #endif | ||
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| namespace boost { | ||
| namespace stl_interfaces { | ||
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| /** An enumeration used to indicate whether the underlying data have a | ||
| contiguous or discontiguous layout when instantiating `view_interface` | ||
| and `sequence_container_interface`. */ | ||
| enum class element_layout : bool { discontiguous = false, contiguous = true }; | ||
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| BOOST_STL_INTERFACES_NAMESPACE_V1 { | ||
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| namespace v1_dtl { | ||
| template <typename... T> | ||
| using void_t = void; | ||
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| template <typename Iter> | ||
| using iter_difference_t = typename std::iterator_traits<Iter>::difference_type; | ||
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| template <typename Range, typename = void> | ||
| struct iterator; | ||
| template <typename Range> | ||
| struct iterator<Range, void_t<decltype(std::declval<Range&>().begin())>> { | ||
| using type = decltype(std::declval<Range&>().begin()); | ||
| }; | ||
| template <typename Range> | ||
| using iterator_t = typename iterator<Range>::type; | ||
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| template <typename Range, typename = void> | ||
| struct sentinel; | ||
| template <typename Range> | ||
| struct sentinel<Range, void_t<decltype(std::declval<Range&>().end())>> { | ||
| using type = decltype(std::declval<Range&>().end()); | ||
| }; | ||
| template <typename Range> | ||
| using sentinel_t = typename sentinel<Range>::type; | ||
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| template <typename Range> | ||
| using range_difference_t = iter_difference_t<iterator_t<Range>>; | ||
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| template <typename Range> | ||
| using common_range = std::is_same<iterator_t<Range>, sentinel_t<Range>>; | ||
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| template <typename Range, typename = void> | ||
| struct decrementable_sentinel : std::false_type {}; | ||
| template <typename Range> | ||
| struct decrementable_sentinel<Range, void_t<decltype(--std::declval<sentinel_t<Range>&>())>> : std::true_type {}; | ||
| } // namespace v1_dtl | ||
| } | ||
| } // namespace stl_interfaces | ||
| } // namespace boost | ||
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| #endif |
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