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Experimental library header <experimental/ranges/utility>

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Standard library headers
Experimental library headers
Execution P2300
<experimental/execution>
Filesystem TS
<experimental/filesystem>
Parallelism TS (v1, v2)
experimental/algorithm
experimental/execution_policy
experimental/exception_list
experimental/numeric
<experimental/simd>
experimental/task_block
Library Fundamentals TS (v1, v2, v3)
experimental/algorithm
<experimental/any>
experimental/array
experimental/chrono
experimental/deque
experimental/forward_list
<experimental/functional>
experimental/future
experimental/iterator
experimental/list
experimental/map
experimental/memory
<experimental/memory_resource>
experimental/numeric
<experimental/optional>
experimental/propagate_const
experimental/random
experimental/ratio
experimental/regex
experimental/scope
experimental/set
experimental/source_location
experimental/string
<experimental/string_view>
experimental/system_error
experimental/tuple
experimental/type_traits
experimental/unordered_map
experimental/unordered_set
experimental/utility
experimental/vector

Concurrency TS
experimental/atomic
experimental/barrier
experimental/future
experimental/latch
Ranges TS
Coroutines TS
experimental/coroutine
Networking TS
experimental/buffer
experimental/executor
experimental/internet
experimental/io_context
<experimental/net>
experimental/netfwd
experimental/socket
experimental/timer
Reflection TS
<experimental/reflect>

此头文件属于 ranges 库。

目录

实用工具组件

定义于命名空间 std::experimental::ranges
交换两个对象的值
(定制点对象)
以新值替换实参并返回其先前值
(函数模板)

标签概念

定义于 命名空间 std::experimental::ranges
指定类型为标签说明符
(概念)
指定类型表示标签说明符及其元素类型
(概念)

带标签的配对

定义于命名空间 std::experimental::ranges
为类元组类型增强命名访问器
(类模板)
带标记的 std::pair 别名模板
(别名模板)
创建 tagged_pair 的便捷函数
(函数模板)

概要 

namespace std { namespace experimental { namespace ranges { inline namespace v1 {
namespace {
  constexpr /* 未指定 */ swap = /* 未指定 */;
} 
template<MoveConstructible T, class U = T>
  requires Assignable<T&, U>
constexpr T exchange(T& obj, U&& new_val) noexcept(/* 见定义 */);
template <class T>
concept bool TagSpecifier = /* 见定义 */;
template <class F>
concept bool TaggedType = /* 见定义 */;
template <class Base, TagSpecifier... Tags>
  requires sizeof...(Tags) <= std::tuple_size<Base>::value
struct tagged;
template <TaggedType T1, TaggedType T2>
using tagged_pair = /* 见定义 */;
template <TagSpecifier Tag1, TagSpecifier Tag2, class T1, class T2>
constexpr /* 见定义 */ make_tagged_pair(T1&& x, T2&& y);
}}}}
namespace std {
template <class Base, class... Tags>
struct tuple_size<experimental::ranges::tagged<Base, Tags...>>;
template <size_t N, class Base, class... Tags>
struct tuple_element<N, experimental::ranges::tagged<Base, Tags...>>;
}