命名空间
变体
操作

标准库头文件 <barrier> (C++20)

来自 cppreference.com
< cpp‎ | header
 
 
标准库头文件
语言支持
概念
<concepts> (C++20)
诊断
<system_error> (C++11)

内存管理
<memory_resource> (C++17)  
元编程
<type_traits> (C++11)
<ratio> (C++11)
通用实用程序
<utility>
<tuple> (C++11)
<optional> (C++17)
<variant> (C++17)
<any> (C++17)
<debugging> (C++26)
<expected> (C++23)
<bitset>
<charconv> (C++17)
<format> (C++20)
<bit> (C++20)

字符串
<cuchar> (C++11)

容器
<flat_set> (C++23)
<span> (C++20)
<mdspan> (C++23)
<inplace_vector> (C++26)
迭代器
<iterator>
范围
<ranges> (C++20)
<generator> (C++23)
算法
数值
<cfenv> (C++11)
<complex>
<cmath>
<linalg> (C++26)
<numbers> (C++20)

时间
<chrono> (C++11)
本地化
<codecvt> (C++11/17/26*)
<text_encoding> (C++26)
输入/输出
<filesystem> (C++17)
<cstdio>
<cinttypes> (C++11)
<strstream> (C++98/26*)
正则表达式
<regex> (C++11)
并发支持
<stop_token> (C++20)
<thread> (C++11)
<atomic> (C++11)
<rcu> (C++26)
<stdatomic.h> (C++23)
<mutex> (C++11)
<shared_mutex> (C++14)

<condition_variable> (C++11)  
<semaphore> (C++20)
<latch> (C++20)

<barrier> (C++20)
<future> (C++11)
<hazard_pointer> (C++26)

C 兼容性
<cstdbool> (C++11/17/20*)  
<ccomplex> (C++11/17/20*)
<ctgmath> (C++11/17/20*)

<cstdalign> (C++11/17/20*)

<ciso646> (直到 C++20)

 

此头文件是 线程支持 库的一部分。

(C++20)
可重用线程屏障
(类模板) [编辑]

[编辑] 概要

namespace std {
  template<class CompletionFunction = /* see description */>
    class barrier;
}

[编辑] 类模板 std::barrier

namespace std {
  template<class CompletionFunction = /* see description */>
  class barrier {
  public:
    using arrival_token =  /* see description */;
 
    static constexpr ptrdiff_t max() noexcept;
 
    constexpr explicit barrier(ptrdiff_t expected,
                               CompletionFunction f = CompletionFunction());
    ~barrier();
 
    barrier(const barrier&) = delete;
    barrier& operator=(const barrier&) = delete;
 
    arrival_token arrive(ptrdiff_t update = 1);
    void wait(arrival_token&& arrival) const;
 
    void arrive_and_wait();
    void arrive_and_drop();
 
  private:
    CompletionFunction completion;      // exposition only
  };
}