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      std::swap(std::thread)

      From cppreference.com
      <cpp‎ |thread‎ |thread

      [edit template]
       
       
      Concurrency support library
      Threads
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      this_thread namespace
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      void swap(std::thread& lhs,std::thread& rhs)noexcept;
      (since C++11)

      Overloads thestd::swap algorithm forstd::thread. Exchanges the state oflhs with that ofrhs. Effectively callslhs.swap(rhs).

      Contents

      [edit]Parameters

      lhs, rhs - threads whose states to swap

      [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(){usingstd::swap; std::thread t1(foo);std::thread t2(bar); std::cout<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n';     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';     t1.join();    t2.join();}

      Possible output:

      thread 1 id: 1892thread 2 id: 2584after std::swap(t1, t2):thread 1 id: 2584thread 2 id: 1892after t1.swap(t2):thread 1 id: 1892thread 2 id: 2584

      [edit]See also

      swaps two thread objects
      (public member function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/thread/swap2&oldid=129227"

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