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Update BTreeMap recommendation

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Focus on the ordering/range benefit.
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Arthur Silva 2018-01-19 15:40:02 +01:00 committed by arthurprs
parent 0b56ab0f7b
commit fdf444da76
1 changed files with 2 additions and 2 deletions
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4
src/libstd/collections/mod.rs
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@ -64,11 +64,11 @@
//! * You want a map, with no extra functionality.
//!
//! ### Use a `BTreeMap` when:
//! * You want a map sorted by its keys.
//! * You want to be able to get a range of entries on-demand.
//! * You're interested in what the smallest or largest key-value pair is.
//! * You want to find the largest or smallest key that is smaller or larger
//! than something.
//! * You want to be able to get all of the entries in order on-demand.
//! * You want a map sorted by its keys.
//!
//! ### Use the `Set` variant of any of these `Map`s when:
//! * You just want to remember which keys you've seen.