Function read_input

example/cpp14/operations/callback_wrapper.cpp:20–31

template <typename Callback>
void read_input(const std::string& prompt, Callback cb)
{
  std::thread(
      [prompt, cb = std::move(cb)]() mutable
      {
        std::cout << prompt << ": ";
        std::cout.flush();
        std::string line;
        std::getline(std::cin, line);
        std::move(cb)(std::move(line));
      }).detach();
}

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