std::thread::swap
From cppreference.com
void swap( std::thread& other ) noexcept; |
(since C++11) | |
Exchanges the underlying handles of two thread objects.
Parameters
| other | - | the thread to swap with |
Return value
(none)
Example
Run this code
#include <chrono>
#include <iostream>
#include <thread>
void foo()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
}
void bar()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
}
int main()
{
std::thread t1(foo);
std::thread t2(bar);
std::cout << "thread 1 id: " << t1.get_id() << '\n'
<< "thread 2 id: " << t2.get_id() << '\n';
std::swap(t1, t2);
std::cout << "after std::swap(t1, t2):" << '\n'
<< "thread 1 id: " << t1.get_id() << '\n'
<< "thread 2 id: " << t2.get_id() << '\n';
t1.swap(t2);
std::cout << "after t1.swap(t2):" << '\n'
<< "thread 1 id: " << t1.get_id() << '\n'
<< "thread 2 id: " << t2.get_id() << '\n';
t1.join();
t2.join();
}
Possible output:
thread 1 id: 140185268262656
thread 2 id: 140185259869952
after std::swap(t1, t2):
thread 1 id: 140185259869952
thread 2 id: 140185268262656
after t1.swap(t2):
thread 1 id: 140185268262656
thread 2 id: 140185259869952
See also
(C++11) |
specializes the std::swap algorithm (function) |