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For code for double ended queues, or code that wouldn't nearly be the same without a deque. Not for code that merely happens to use a deque incidentally but whose real focus is something else.

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A simple thread-safe Deque in C++

::deque<T, Allocator> deque; }; Technically, we do need to include <condition_variable>; we're not allowed to assume that <mutex> always pulls it in. … It's helpful to show that members are intentionally default-constructed, and it pacifies g++ -Weffc++: std::deque<T> deque = {}; std::mutex mutex = {}; std::condition_variable condition = {}; …
Toby Speight's user avatar
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