std::barrier<CompletionFunction>::barrier - cppreference.com
Namespaces
Variants

    std::barrier<CompletionFunction>::barrier

    From cppreference.com
     
    C++
     
    Concurrency support library
    Threads
    (C++11)
    (C++20)
    (C++17)(C++17)
    this_thread namespace
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Cooperative cancellation
    Mutual exclusion
    (C++11)
    (C++11)
    (C++17)
    Generic lock management
    (C++11)
    (C++11)
    (C++17)
    (C++11)
    (C++14)
    (C++11)
    (C++11)
    (C++11)
    (C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
    Condition variables
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Semaphores
    (C++20)(C++20)
    Latches and Barriers
    (C++20)
    (C++20)
    Futures
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Safe Reclamation
    Read-Copy-Update Mechanism
    (C++26)
    (C++26)
    (C++26)
    Hazard Pointers
    (C++26)
    (C++26)
    (C++26)
    Atomic types
    (C++11)
    (C++20)
    (C++11)
    Initialization of atomic types
    (C++11)(deprecated in C++20)
    (C++11)(deprecated in C++20)
    (C++11)
    Memory ordering
    (C++11)
    (C++11)(deprecated in C++26)
    (C++11)
    (C++11)
    Free functions for atomic operations
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)(C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++26)(C++26)
    (C++26)(C++26)
    (C++11)
    (C++20)(C++20)
    (C++20)
    (C++20)
    Free functions for atomic flags
    (C++11)(C++11)
    (C++11)(C++11)
    (C++20)(C++20)
    (C++20)(C++20)
    (C++20)
    (C++20)
     
    std::barrier
     
    constexpr explicit barrier( std::ptrdiff_t expected,
                            CompletionFunction f = CompletionFunction());
    		(1) (since C++20) 
    barrier( const barrier& ) = delete;
    		(2) (since C++20)
    1) Sets the both initial expected count for each phase and the current expected count for the first phase to expected, initializes the completion function object with std::move(f), and then starts the first phase. The behavior is undefined if expected is negative or greater than max().
    2) Copy constructor is deleted. barrier is neither copyable nor movable.

    Parameters

    Exceptions

    1) Any exception thrown by CompletionFunction's move constructor.

    Notes

    expected is permitted to be zero. However, calling any non-static member function other than the destructor on such barrier results in undefined behavior. In other words, such barrier can only be destroyed.