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  1. #include <iostream>
  2. #include <string>
  3. #include <thread>
  4. #include <future>
  5. #include <chrono>
  6.  
  7.  
  8. int main()
  9. {
  10.     auto pms = std::promise<std::string>();
  11.     auto ftr = pms.get_future();
  12.  
  13.     std::thread thread([&](){pms.set_value("hello world");});    
  14.     ftr.wait();
  15.     std::cout << ftr.get() << std::endl;
  16.     thread.join ();
  17.     return 0;
  18. }
Success #stdin #stdout 0s 6552KB
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stdin
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Standard input is empty
stdout
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hello world
https://ideone.com/JZpKL8
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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