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  1. #include <iostream>
  2. #include <thread>
  3. #include <map>
  4. #include <string>
  5. using namespace std;
  6.  
  7. std::map<std::thread::id, std::string> threadMap;
  8. std::thread::id threadId1;
  9.  
  10. void printThread(std::thread::id threadId) {
  11. 	if (threadMap.find(threadId) != threadMap.end()) {
  12. 		cout<<"Thread exist name is "<<threadMap[threadId]<<endl;
  13. 	} else {
  14. 		cout<<"Thread isn't exist"<<endl;
  15. 	}
  16. }
  17.  
  18. void executeThreads() {
  19. 	std::thread t1([](){
  20. 		threadMap.insert(std::pair<std::thread::id, std::string>(std::this_thread::get_id(), string("Thread1")));
  21. 		cout<<"Printing thread 1"<<endl;
  22. 		printThread(std::this_thread::get_id());
  23. 		threadId1 = std::this_thread::get_id();
  24. 	});
  25. 	cout<<"Joining T1 thread"<<endl;
  26. 	t1.join();
  27. 	cout<<"T1 joined thread"<<endl;
  28. 	std::thread t2([](){
  29. 		threadMap.insert(std::pair<std::thread::id, std::string>(std::this_thread::get_id(), string("Thread2")));
  30. 		cout<<"Printing thread 2"<<endl;
  31. 		printThread(std::this_thread::get_id());
  32. 	});
  33. 	cout<<"Joining T2 thread"<<endl;
  34. 	t2.join();
  35. 	cout<<"T2 joined thread"<<endl;
  36. }
  37.  
  38. int main() {
  39. 	executeThreads();
  40. 	cout<<"Checking if thread 1 ID still exist in map"<<endl;
  41. 	printThread(threadId1);
  42. 	cout<<"Checking if current thread exist in map"<<endl;
  43. 	printThread(std::this_thread::get_id());
  44. 	return 0;
  45. }
Success #stdin #stdout 0.01s 5420KB
comments (?)
stdin
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Standard input is empty
stdout
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Joining T1 thread
Printing thread 1
Thread exist name is Thread1
T1 joined thread
Joining T2 thread
Printing thread 2
Thread exist name is Thread1
T2 joined thread
Checking if thread 1 ID still exist in map
Thread exist name is Thread1
Checking if current thread exist in map
Thread isn't exist
https://ideone.com/hS5T24
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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