Std::thread::detach (3) Linux Manual Page

std::thread::detach – std::thread::detach

Synopsis

void detach();
(since C++ 11)

Separates the thread of execution from the thread object, allowing execution to continue independently. Any allocated resources will be freed once the thread exits.
After calling detach *this no longer owns any thread.

Parameters

(none)

Return value

(none)

Postconditions

joinable is false

Exceptions

std::system_error if joinable() == false or an error occurs.

Example

// Run this code

#include <iostream>

#include <chrono>

#include <thread>
void independentThread()

{
    std::cout << "Starting concurrent thread.\n";
    std::this_thread::sleep_for(std::chrono::seconds(2));
    std::cout << "Exiting concurrent thread.\n";
}
void threadCaller()

{
    std::cout << "Starting thread caller.\n";
    std::thread t(independentThread);
    t.detach();
    std::this_thread::sleep_for(std::chrono::seconds(1));
    std::cout << "Exiting thread caller.\n";
}
int main()

{
    threadCaller();
    std::this_thread::sleep_for(std::chrono::seconds(5));
}

Possible output:

  Starting thread caller.
  Starting concurrent thread.
  Exiting thread caller.
  Exiting concurrent thread.

References

* C++11 standard (ISO/IEC 14882:2011):

* 30.3.1.5 thread members [thread.thread.member]

std::thread::detach (3) Linux Manual Page