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cppdraft/range/single/overview.md

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+[range.single.overview]
+
+# 25 Ranges library [[ranges]](./#ranges)
+
+## 25.6 Range factories [[range.factories]](range.factories#range.single.overview)
+
+### 25.6.3 Single view [[range.single]](range.single#overview)
+
+#### 25.6.3.1 Overview [range.single.overview]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2626)
+
+single_view produces a view that contains
+exactly one element of a specified value[.](#1.sentence-1)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2630)
+
+The name views​::​single denotes a
+customization point object ([[customization.point.object]](customization.point.object "16.3.3.3.5 Customization Point Object types"))[.](#2.sentence-1)
+
+Given a subexpression E, the expressionviews​::​single(E) is expression-equivalent tosingle_view<decay_t<decltype((E))>>(E)[.](#2.sentence-2)
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2638)
+
+[*Example [1](#example-1)*: for (int i : views::single(4)) cout << i; // prints 4 — *end example*]

cppdraft/range/single/view.md

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+[range.single.view]
+
+# 25 Ranges library [[ranges]](./#ranges)
+
+## 25.6 Range factories [[range.factories]](range.factories#range.single.view)
+
+### 25.6.3 Single view [[range.single]](range.single#view)
+
+#### 25.6.3.2 Class template single_view [range.single.view]
+
+[🔗](#lib:single_view)
+
+namespace std::ranges {template<[move_constructible](concept.moveconstructible#concept:move_constructible "18.4.13 Concept move_­constructible [concept.moveconstructible]") T>requires is_object_v<T>class single_view : public view_interface<single_view<T>> {private:*movable-box*<T> *value_*; // *exposition only* (see [[range.move.wrap]](range.move.wrap "25.7.3 Movable wrapper"))public: single_view() requires [default_initializable](concept.default.init#concept:default_initializable "18.4.12 Concept default_­initializable [concept.default.init]")<T> = default; constexpr explicit single_view(const T& t) requires [copy_constructible](concept.copyconstructible#concept:copy_constructible "18.4.14 Concept copy_­constructible [concept.copyconstructible]")<T>; constexpr explicit single_view(T&& t); template<class... Args>requires [constructible_from](concept.constructible#concept:constructible_from "18.4.11 Concept constructible_­from [concept.constructible]")<T, Args...>constexpr explicit single_view(in_place_t, Args&&... args); constexpr T* begin() noexcept; constexpr const T* begin() const noexcept; constexpr T* end() noexcept; constexpr const T* end() const noexcept; static constexpr bool empty() noexcept; static constexpr size_t size() noexcept; constexpr T* data() noexcept; constexpr const T* data() const noexcept; }; template<class T> single_view(T) -> single_view<T>;}
+
+[🔗](#lib:single_view,constructor)
+
+`constexpr explicit single_view(const T& t) requires [copy_constructible](concept.copyconstructible#concept:copy_constructible "18.4.14 Concept copy_­constructible [concept.copyconstructible]")<T>;
+`
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2686)
+
+*Effects*: Initializes *value_* with t[.](#1.sentence-1)
+
+[🔗](#lib:single_view,constructor_)
+
+`constexpr explicit single_view(T&& t);
+`
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2697)
+
+*Effects*: Initializes *value_* with std​::​move(t)[.](#2.sentence-1)
+
+[🔗](#lib:single_view,constructor__)
+
+`template<class... Args>
+  requires [constructible_from](concept.constructible#concept:constructible_from "18.4.11 Concept constructible_­from [concept.constructible]")<T, Args...>
+constexpr explicit single_view(in_place_t, Args&&... args);
+`
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2710)
+
+*Effects*: Initializes *value_* as if by*value_*{in_place, std​::​forward<Args>(args)...}[.](#3.sentence-1)
+
+[🔗](#lib:begin,single_view)
+
+`constexpr T* begin() noexcept;
+constexpr const T* begin() const noexcept;
+`
+
+[4](#4)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2723)
+
+*Effects*: Equivalent to: return data();
+
+[🔗](#lib:end,single_view)
+
+`constexpr T* end() noexcept;
+constexpr const T* end() const noexcept;
+`
+
+[5](#5)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2735)
+
+*Effects*: Equivalent to: return data() + 1;
+
+[🔗](#lib:empty,single_view)
+
+`static constexpr bool empty() noexcept;
+`
+
+[6](#6)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2746)
+
+*Effects*: Equivalent to: return false;
+
+[🔗](#lib:size,single_view)
+
+`static constexpr size_t size() noexcept;
+`
+
+[7](#7)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2757)
+
+*Effects*: Equivalent to: return 1;
+
+[🔗](#lib:data,single_view)
+
+`constexpr T* data() noexcept;
+constexpr const T* data() const noexcept;
+`
+
+[8](#8)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2769)
+
+*Effects*: Equivalent to: return *value_*.operator->();