33 Concurrency support library [thread]

33.4 Threads [thread.threads]

33.4.3 Class thread [thread.thread.class] General [thread.thread.class.general]

The class thread provides a mechanism to create a new thread of execution, to join with a thread (i.e., wait for a thread to complete), and to perform other operations that manage and query the state of a thread.
A thread object uniquely represents a particular thread of execution.
That representation may be transferred to other thread objects in such a way that no two thread objects simultaneously represent the same thread of execution.
A thread of execution is detached when no thread object represents that thread.
Objects of class thread can be in a state that does not represent a thread of execution.
[Note 1: 
A thread object does not represent a thread of execution after default construction, after being moved from, or after a successful call to detach or join.
— end note]
namespace std { class thread { public: // [thread.thread.id], class thread​::​id class id; using native_handle_type = implementation-defined; // see [thread.req.native] // construct/copy/destroy thread() noexcept; template<class F, class... Args> explicit thread(F&& f, Args&&... args); ~thread(); thread(const thread&) = delete; thread(thread&&) noexcept; thread& operator=(const thread&) = delete; thread& operator=(thread&&) noexcept; // [thread.thread.member], members void swap(thread&) noexcept; bool joinable() const noexcept; void join(); void detach(); id get_id() const noexcept; native_handle_type native_handle(); // see [thread.req.native] // static members static unsigned int hardware_concurrency() noexcept; }; }