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std::jthread::get_id(3) | C++ Standard Libary | std::jthread::get_id(3) |
NAME¶
std::jthread::get_id - std::jthread::get_id
Synopsis¶
[[nodiscard]] std::jthread::id get_id() const noexcept; (since C++20)
Returns a value of std::jthread::id identifying the thread associated with
*this.
Parameters¶
(none)
Return value¶
A value of type std::jthread::id identifying the thread
associated with *this. If
there is no thread associated, default constructed std::jthread::id is
returned.
Example¶
// Run this code
#include <iostream>
#include <thread>
#include <chrono>
void foo()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
}
int main()
{
std::jthread t1(foo);
std::jthread::id t1_id = t1.get_id();
std::jthread t2(foo);
std::jthread::id t2_id = t2.get_id();
std::cout << "t1's id: " << t1_id << '\n';
std::cout << "t2's id: " << t2_id << '\n';
}
Possible output:¶
t1's id: 0x35a7210f
t2's id: 0x35a311c4
See also¶
id represents the id of a thread
(public member class of std::thread)
checks whether the thread is joinable, i.e. potentially running in parallel
joinable context
(public member function)
2022.07.31 | http://cppreference.com |