std::thread::swap
void swap( 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 <iostream> #include <thread> #include <chrono> 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() << std::endl; std::cout << "thread 2 id: " << t2.get_id() << std::endl; std::swap(t1, t2); std::cout << "after std::swap(t1, t2):" << std::endl; std::cout << "thread 1 id: " << t1.get_id() << std::endl; std::cout << "thread 2 id: " << t2.get_id() << std::endl; t1.swap(t2); std::cout << "after t1.swap(t2):" << std::endl; std::cout << "thread 1 id: " << t1.get_id() << std::endl; std::cout << "thread 2 id: " << t2.get_id() << std::endl; t1.join(); t2.join(); }
Possible output:
thread 1 id: 1892 thread 2 id: 2584 after std::swap(t1, t2): thread 1 id: 2584 thread 2 id: 1892 after t1.swap(t2): thread 1 id: 1892 thread 2 id: 2584
See also
(C++11) |
specializes the std::swap algorithm (function template) |