Movatterモバイル変換


[0]ホーム

URL:


cppreference.com
Namespaces
Variants
    Actions

      std::jthread::swap

      From cppreference.com
      <cpp‎ |thread‎ |jthread

      [edit template]
       
       
      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
       
       
      void swap(std::jthread& other)noexcept;
      (since C++20)

      Exchanges the underlying handles of two jthread objects.

      Contents

      [edit]Parameters

      other - the jthread to swap with

      [edit]Return value

      (none)

      [edit]Example

      Run this code
      #include <chrono>#include <iostream>#include <thread> void foo(){std::this_thread::sleep_for(std::chrono::seconds(1));} void bar(){std::this_thread::sleep_for(std::chrono::seconds(1));} int main(){std::jthread t1(foo);std::jthread t2(bar); std::cout<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n'; std::swap(t1, t2); std::cout<<"after std::swap(t1, t2):"<<'\n'<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n';     t1.swap(t2); std::cout<<"after t1.swap(t2):"<<'\n'<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n';  }

      Possible output:

      thread 1 id: 140185268262656thread 2 id: 140185259869952after std::swap(t1, t2):thread 1 id: 140185259869952thread 2 id: 140185268262656after t1.swap(t2):thread 1 id: 140185268262656thread 2 id: 140185259869952

      [edit]See also

      specializes thestd::swap algorithm
      (function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/jthread/swap&oldid=129259"

      [8]ページ先頭

      ©2009-2025 Movatter.jp