|
|
Member functions | ||||
Observers | ||||
Operations | ||||
Stop token handling | ||||
Non-member functions | ||||
swap(std::jthread) |
friendvoid swap( jthread& lhs, jthread& rhs)noexcept; | (since C++20) | |
Overloads thestd::swap algorithm forstd::jthread. Exchanges the state oflhs with that ofrhs. Effectively callslhs.swap(rhs). This function is not visible to ordinaryunqualified orqualified lookup, and can only be found byargument-dependent lookup when std::jthread is an associated class of the arguments.
Contents |
lhs, rhs | - | jthreads whose states to swap |
(none)
#include <chrono>#include <iostream>#include <thread> void foo(){std::this_thread::sleep_for(std::chrono::seconds(1));} void bar(){std::this_thread::sleep_for(std::chrono::seconds(1));} int main(){usingstd::swap; std::jthread t1(foo);std::jthread t2(bar); std::cout<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n'; swap(t1, t2); std::cout<<"after std::swap(t1, t2):"<<'\n'<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n'; t1.swap(t2); std::cout<<"after t1.swap(t2):"<<'\n'<<"thread 1 id: "<< t1.get_id()<<'\n'<<"thread 2 id: "<< t2.get_id()<<'\n'; }
Possible output:
thread 1 id: 1892thread 2 id: 2584after std::swap(t1, t2):thread 1 id: 2584thread 2 id: 1892after t1.swap(t2):thread 1 id: 1892thread 2 id: 2584
swaps two jthread objects (public member function)[edit] |