Add a doctest for BTreeMap's iter method. #19592
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You can check out the other collections for what they do (Vec has an example for into_iter). For iter_mut you could demonstrating mutating the contents through the references. Something simple like increasing every number by one or something, maybe? |
alexcrichton
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I'm interested in including doctests for `BTreeMap`'s `iter_mut` and `into_iter` methods in this PR as well, but I am not sure of the best way to demonstrate/test what they do for the doctests.
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I'm interested in including doctests for
BTreeMap'siter_mutandinto_itermethods in this PR as well, but I am not sure of the best way to demonstrate/test what they do for the doctests.