static thread_local 인스턴스의 소멸 시점

#include <chrono>

#include <thread>

#include <iostream>

using namespace std;

class Foo

{

public:

Foo() {

cout << "call constructor" << endl;

}

~Foo() {

cout << "call destructor" << endl;

}

};

int main()

{

thread thrd{[]

{

static thread_local Foo foo;

this_thread::sleep_for(5s);

}};

cout << "before join" << endl;

thrd.join();

cout << "after join" << endl;

return 0;

}

스레드가 종료될 때 제거된다. 당연하게도.