Movatterモバイル変換


[0]ホーム

URL:


cppreference.com
Namespaces
Variants
    Actions

      std::atomic_flag::test

      From cppreference.com
      <cpp‎ |atomic‎ |atomic flag
       
       
      Concurrency support library
      Threads
      (C++11)
      (C++20)
      this_thread namespace
      (C++11)
      (C++11)
      (C++11)
      Cooperative cancellation
      Mutual exclusion
      Generic lock management
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Condition variables
      (C++11)
      Semaphores
      Latches and Barriers
      (C++20)
      (C++20)
      Futures
      (C++11)
      (C++11)
      (C++11)
      Safe reclamation
      Hazard pointers
      Atomic types
      (C++11)
      (C++20)
      Initialization of atomic types
      (C++11)(deprecated in C++20)
      (C++11)(deprecated in C++20)
      Memory ordering
      (C++11)(deprecated in C++26)
      Free functions for atomic operations
      Free functions for atomic flags
       
       
      bool test(std::memory_order order=
                     std::memory_order_seq_cst)constvolatilenoexcept;
      (1)(since C++20)
      bool test(std::memory_order order=
                     std::memory_order_seq_cst)constnoexcept;
      (2)(since C++20)

      Atomically reads the value of the*this and returns the value.

      Iforder is one ofstd::memory_order_release andstd::memory_order_acq_rel, the behavior is undefined.

      Contents

      [edit]Parameters

      order - the memory synchronization ordering

      [edit]Return value

      The value atomically read.

      [edit]Example

      This section is incomplete
      Reason: no example

      [edit]See also

      atomically returns the value of the flag
      (function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/atomic/atomic_flag/test&oldid=159555"

      [8]ページ先頭

      ©2009-2025 Movatter.jp