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auto merge of #16543 : huonw/rust/deprecated-btree, r=alexcrichton

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This is very half-baked at the moment and very inefficient, e.g.
inappropriate use of by-value `self` (and thus being forced into an
overuse of `clone`). People get the wrong impression about Rust when
using it, e.g. that Rust cannot express what other languages can because
the implementation is inefficient: https://news.ycombinator.com/item?id=8187831 .
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bors 2014-08-17 13:11:06 +00:00
commit eff87bc9d2
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src/libcollections/btree.rs
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@ -11,6 +11,13 @@
// btree.rs
//
// NB. this is not deprecated for removal, just deprecating the
// current implementation. If the major pain-points are addressed
// (overuse of by-value self and .clone), this can be removed.
#![deprecated = "the current implementation is extremely inefficient, \
prefer a HashMap, TreeMap or TrieMap"]
#![allow(deprecated)]
//! Starting implementation of a btree for rust.
//! Structure inspired by github user davidhalperin's gist.