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std::this_thread:: get_id

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定义于头文件 <thread>
std:: thread :: id get_id ( ) noexcept ;
(C++11 起)

返回当前线程的 id 。

目录

参数

(无)

返回值

当前线程的 id 。

示例

运行此代码 
#include <chrono>
#include <iostream>
#include <syncstream>
#include <thread>
using namespace std::chrono_literals;
void foo()
{
    std::thread::id this_id = std::this_thread::get_id();
    std::osyncstream(std::cout) << "thread " << this_id << " sleeping...\n";
    std::this_thread::sleep_for(500ms);
}
int main()
{
    std::jthread t1{foo};
    std::jthread t2{foo};
}

可能的输出： 

thread 140113018054400 sleeping...
thread 140113009661696 sleeping...

参见

返回线程的 标识符
( std::thread 的公开成员函数)
C 文档 关于 thrd_current