C++11 this_thread::get_id(9)

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

function

<thread>

std::this_thread::get_id

thread::id get_id() noexcept;

Get thread id

Returns the thread id of the calling thread.

返回当前调用的线程ID。

This value uniquely identifies the thread.
该值独一地标识了一个线程。

Parameters

none

Return value

An object of member type thread::id that uniquely identifies the thread.
返回一个线程ID值独一地标识了一个线程。

Example

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// thread::get_id / this_thread::get_id #include <iostream> // std::cout #include <thread> // std::thread, std::thread::id, std::this_thread::get_id #include <chrono> // std::chrono::seconds std::thread::id main_thread_id = std::this_thread::get_id(); //设置为全局所以该ID是主线程的ID void is_main_thread() { if ( main_thread_id == std::this_thread::get_id() ) std::cout << "This is the main thread.\n"; else std::cout << "This is not the main thread.\n"; } int main() { is_main_thread(); std::thread th (is_main_thread); th.join(); }

Edit & Run

Output:

This is the main thread. This is not the main thread.

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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