Maybe we should just implement AdditiveIterator on &A as well? That way you can just say `values.iter().sum()`.
-Kevin On Sep 24, 2013, at 6:19 PM, Daniel Micay <[email protected]> wrote: > On Tue, Sep 24, 2013 at 8:37 PM, Tim Kuehn <[email protected]> wrote: > There's also std::iter::AdditiveIterator. > > fn average<T: Num + NumCast + Clone>(values: &[T]) -> T { > let sum = values.iter().map(|n| n.clone()).sum(); > sum / num::cast(values.len()) > } > > Using `iter().fold(Zero::zero(), |a, b| a + *b)` would be a lot more > efficient for big integers. I'm not sure if we should really have the `sum`, > `product`, `max` and `min` methods. > _______________________________________________ > Rust-dev mailing list > [email protected] > https://mail.mozilla.org/listinfo/rust-dev
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