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The C++11 std::async is a simple tool for launching asynchronous tasks to either start a task in parallel or to defer execution on the same thread.
The benefit of std::async is simplicity, as std::async directly returns a std::future; however, we pay for that simplicity with a lack of control.
Compiler Explorer link: https://compiler-explorer.com/z/x3Kaq9eed
@simontoth Never used/seen std::async with the deferred option. Usually see ppl using RAII in classes for it. But it does sound interesting... Have you seen the deferred being used that way?
@paiusco Yes. While I do prefer RAII or std::unique_ptr with a custom deleted, it is an option.