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Also I’m a big fan of std::span

std::span also fills the role of the non-existing std::view by just using std::span<const T> instead of std::span<T>. It’s pretty versatile.

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To this day, this remains my favorite reference for an overview of retrofitting single-threaded IO-focused concurrency support on traditional programming languages (yet the approach that is ignored the most as people became keen on just copying variations of what NodeJS does). I don’t even allow Java get close to any of my projects, but this Java talk is the one I like the most on the topic.

The TL;DW is:

• Don’t focus on coroutines as building block for then adding concurrency. Focus on concurrency from the start.

• Use the native vocabulary that your language already offers for expressing control flow.

• Concurrency support brings concurrency problems so the new vocabulary should be aimed at taming concurrency.

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