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auto merge of #5196 : thestinger/rust/ord, r=catamorphism

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This allows `TreeMap`/`TreeSet` to fully express their requirements and reduces the comparisons from ~1.5 per level to 1 which really helps for string keys.

I also added `ReverseIter` to the prelude exports because I forgot when I originally added it.
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bors
2013-03-02 05:15:39 -08:00
parent 5aca7d6aef 035233a259
commit 2304fe6208
5 changed files with 253 additions and 93 deletions
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4
src/libcore/prelude.rs
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@@ -24,10 +24,10 @@ pub use result::{Result, Ok, Err};
/* Reexported types and traits */
pub use clone::Clone;
pub use cmp::{Eq, Ord};
pub use cmp::{Eq, Ord, TotalOrd, Ordering, Less, Equal, Greater};
pub use container::{Container, Mutable, Map, Set};
pub use hash::Hash;
pub use iter::{BaseIter, ExtendedIter, EqIter, CopyableIter};
pub use iter::{BaseIter, ReverseIter, ExtendedIter, EqIter, CopyableIter};
pub use iter::{CopyableOrderedIter, CopyableNonstrictIter, Times};
pub use num::NumCast;
pub use path::GenericPath;