thread_capture.cpp

#include <iostream>
#include <string>
#include <thread>

struct A {
    
    static unsigned global_counter;
    unsigned counter;
    
    A() {
        counter = global_counter++;
        std::cout << "[" << std::this_thread::get_id() << "]";
        std::cout << "A" << counter << std::endl;    
    }
    ~A() {
        std::cout << "[" << std::this_thread::get_id() << "]";
        std::cout << "~A" << counter << std::endl;    
    }
    A(const A& a) {
        counter = global_counter++;
        std::cout << "[" << std::this_thread::get_id() << "]";
        std::cout << "A&" << counter << std::endl;    
    }
    A(A&& a) {
        counter = global_counter++;
        std::cout << "[" << std::this_thread::get_id() << "]";
        std::cout << "A&&" << counter << std::endl;    
    }
    void operator() (){
        std::cout << "[" << std::this_thread::get_id() << "]";
        std::cout << "A()" << counter << std::endl;
    }
};

unsigned A::global_counter = 0;

int main(){
    
    A a;
    std::thread{ a }.join();   
}