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std::this_thread:: get_id

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ヘッダーで定義 <thread>
std:: thread :: id get_id ( ) noexcept ;
(C++11以降)

現在のスレッドの id を返します。

目次

パラメータ

(なし)

戻り値

id 現在のスレッドの。

例

このコードを実行 
#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};
}

出力例: 

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

関連項目

スレッドの id を返す
( std::thread の公開メンバ関数)
Cドキュメント for thrd_current