std::thread::id (3) - Linux Manuals

std::thread::id: std::thread::id

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 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

              constructs an id that does not represent a thread
constructor (public member function)

Non-member functions

operator==
operator!= compares two thread::id objects
operator<_ (function)
operator<=_
operator>_
operator>=
            serializes a thread::id object
operator<< (function template)

Helper classes

                           specializes std::hash
std::hash<std::thread::id> (class template specialization)