C++11 thread::swap(8)

原文地址：http://www.cplusplus.com/reference/thread/thread/swap/

public member function

<thread>

std::thread::swap

void swap (thread& x) noexcept;

Swap threads

Swaps the state of the object with that of x.

交换两个对象的状态。

例子：

// example for thread::operator=
#include <iostream>       // std::cout
#include <thread>         // std::thread, std::this_thread::sleep_for
using namespace std;
void show(int n){
	cout<<"t"<<n<<"  currents id="<<this_thread::get_id()<<endl;
}
int main()
{
	thread t(show,0);
	cout<<"t.id="<<t.get_id()<<endl;
	
	thread t1(show,1);
	cout<<"t1.id="<<t1.get_id()<<endl;
	t.swap(t1);
	cout<<"after t.swap(t1)"<<endl;
	cout<<"t.id="<<t.get_id()<<endl;
	cout<<"t1.id="<<t1.get_id()<<endl;
	
	t1.join();
	t.join();
}

运行截图：

Parameters

x

thread object whose state is swapped with that of *this.

将要交换的线程对象。

Return value

none

Data races

Both x and the object are modified.

Exception safety

No-throw guarantee: never throws exceptions.

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转载请注明出处：http://blog.csdn.net/qq844352155

author:天下无双

Email:[email protected]

2014-9-4

于GDUT

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