std::thread::id(3) C++ Standard Libary std::thread::id(3) NAME std::thread::id - std::thread::id Synopsis Defined in header <thread> class thread::id; (since C++11) The class thread::id is a lightweight, trivially copyable class that serves as a unique identifier of std::thread and std::jthread (since C++20) objects. Instances of this class may also hold the special distinct value that does not represent any thread. Once a thread has finished, the value of std::thread::id may be reused by another thread. This class is designed for use as key in associative containers, both ordered and unordered. Member functions constructor constructs an id that does not represent a thread (public member function) Non-member functions operator== operator!= operator< operator<= operator> operator>= compares two thread::id objects operator<=> (function) (removed in C++20) (removed in C++20) (removed in C++20) (removed in C++20) (removed in C++20) (C++20) operator<< serializes a thread::id object (function template) Helper classes std::hash<std::thread::id> hash support for std::thread::id (C++11) (class template specialization) std::formatter<std::thread::id> formatting support for thread::id (C++23) (class template specialization) See also get_id returns the id of the thread (public member function) get_id returns the thread id of the current thread (C++11) (function) http://cppreference.com 2024.06.10 std::thread::id(3)
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