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by mikeash
3192 days ago
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The array capacity and length are stored inline before the contents. So you chase one pointer to get the capacity, length, or something stored in the array. Swift does have ArraySlice, but I don't get how borrows factor into that. Seems vaguely similar in concept, except ArraySlice exists to represent a subset of the original array, not just so you can pass arrays by reference. Since arrays are already passed by reference under the hood, that wouldn't really be useful. I'm not dismissing the concept out of hand, so I'm not sure why you're warning me about that.... |
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