std::swap(std::thread)
STD::交换%28std::线程%29
void swap( thread &lhs, thread &rhs | | (since C++11) |
---|
重载std::swap
算法std::thread
.交换lhs
与...rhs
.有效地打电话lhs.swap(rhs)
...
参数
lhs, rhs | - | threads whose states to swap |
---|
返回值
%280%29
例外
noexcept
规格:
noexcept
例
二次
#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(
}
二次
产出:
二次
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
二次
另见
swap | swaps two thread objects (public member function) |
---|
© cppreference.com
在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。