Is there any API to collect from an ExactSizedIterator? something like FromExactSizedIterator and corresponding collect? If not, are there any plans to consider this? Alternatively, does collect have a specialization for ExactSizedIterator? At the arrow crate (from Apache arrow), are working with …

It's not sound to rely on ExactSizeIterator implementations being correct. This code from your branch has undefined behavior if iterator.len() returns an incorrect value. Since ExactSizeIterator is a safe trait, this means that someone could cause undefined behavior in safe Rust, by implementing E…

Collect for ExactSizedIterator?

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SkiFire13 January 19, 2021, 9:40am 6

An assert_eq also contains an if that has to run in each iteration.

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Collect for ExactSizedIterator?

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