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      std::this_thread::get_id

      From cppreference.com
      <cpp‎ |thread
       
       
      Concurrency support library
      Threads
      (C++11)
      (C++20)
      this_thread namespace
      get_id
      (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
       
      Defined in header<thread>
      std::thread::id get_id()noexcept;
      (since C++11)

      Returns theid of the current thread.

      Contents

      [edit]Parameters

      (none)

      [edit]Return value

      id of the current thread.

      [edit]Example

      Run this code
      #include <chrono>#include <iostream>#include <syncstream>#include <thread>usingnamespace std::chrono_literals; void foo(){std::thread::id this_id= std::this_thread::get_id(); std::osyncstream(std::cout)<<"thread "<< this_id<<" sleeping...\n"; std::this_thread::sleep_for(500ms);} int main(){std::jthread t1{foo};std::jthread t2{foo};}

      Possible output:

      thread 140113018054400 sleeping...thread 140113009661696 sleeping...

      [edit]See also

      returns theid of the thread
      (public member function ofstd::thread)[edit]
      C documentation forthrd_current
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/get_id&oldid=161141"

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