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std::jthread::get_id(3) C++ Standard Libary std::jthread::get_id(3) NAME std::jthread::get_id - std::jthread::get_id Synopsis [[nodiscard]] std::jthread::id get_id() const noexcept; (since C++20) Returns a value of std::jthread::id (which is a type alias for std::thread::id) identifying the thread associated with *this. Parameters (none) Return value A value of type std::jthread::id identifying the thread associated with *this. If there is no thread associated, default constructed std::jthread::id is returned. Example // Run this code #include <chrono> #include <iostream> #include <thread> void foo() { std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::jthread t1(foo); std::jthread::id t1_id = t1.get_id(); std::jthread t2(foo); std::jthread::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: 140146221688576 t2's id: 140146213295872 t1's id after join: thread::id of a non-executing thread t2's id after join: thread::id of a non-executing thread See also id represents the id of a thread (public member class of std::thread) checks whether the thread is joinable, i.e. potentially running in parallel joinable context (public member function) http://cppreference.com 2024.06.10 std::jthread::get_id(3)
NAME | Synopsis | Parameters | Return value | Example | Possible output: | See also
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