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      std::thread::get_id

      From cppreference.com
      <cpp‎ |thread‎ |thread

      [edit template]
       
       
      Concurrency support library
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      std::thread::id get_id()constnoexcept;
      (since C++11)

      Returns a value ofstd::thread::id identifying the thread associated with*this.

      Contents

      [edit]Parameters

      (none)

      [edit]Return value

      A value of typestd::thread::id identifying the thread associated with*this. If there is no thread associated, default constructedstd::thread::id is returned.

      [edit]Example

      Run this code
      #include <chrono>#include <iostream>#include <thread> void foo(){std::this_thread::sleep_for(std::chrono::seconds(1));} int main(){std::thread t1(foo);std::thread::id t1_id= t1.get_id(); std::thread t2(foo);std::thread::id t2_id= t2.get_id(); std::cout<<"t1's id: "<< t1_id<<'\n';std::cout<<"t2's id: "<< t2_id<<'\n';     t1.join();    t2.join(); std::cout<<"t1's id after join: "<< t1.get_id()<<'\n';std::cout<<"t2's id after join: "<< t2.get_id()<<'\n';}

      Possible output:

      t1's id: 140146221688576t2's id: 140146213295872t1's id after join: thread::id of a non-executing threadt2's id after join: thread::id of a non-executing thread

      [edit]See also

      represents theid of a thread
      (public member class)[edit]
      checks whether the thread is joinable, i.e. potentially running in parallel context
      (public member function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/thread/get_id&oldid=120724"

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