Summary
This episode clarifies and expands upon the std::future concepts introduced in Episode 9. Jason explains the launch policies of std::async: the default policy (which allows the system to choose between async or deferred execution), std::launch::async (which forces parallel execution), and std::launch::deferred (which implements lazy evaluation). The episode also demonstrates that a std::future's get() method can only be called once and explores how different standard library implementations (GNU libstdc++ vs LLVM libc++) handle thread creation strategies.
Related C++ Standard Sections
This episode covers topics found in these sections of the C++ standard:
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[futures.async]79% match -
[future.syn]40% match -
[futures.unique.future]40% match -
[thread.thread.this]40% match -
[time]40% match