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| author | Steven Allen <steven@stebalien.com> | 2016-08-13 14:42:36 -0400 |
|---|---|---|
| committer | Steven Allen <steven@stebalien.com> | 2016-08-18 12:16:29 -0400 |
| commit | de91872a3337dddf9a0d27df7bfb64f3965c81b0 (patch) | |
| tree | 5204b54ce4d67aa5eb959f741167db6cba2f2454 /src/libcollections/string.rs | |
| parent | 43c090ed69a624928c03ad61a29a59badf80ff7b (diff) | |
| download | rust-de91872a3337dddf9a0d27df7bfb64f3965c81b0.tar.gz rust-de91872a3337dddf9a0d27df7bfb64f3965c81b0.zip | |
Add a FusedIterator trait.
This trait can be used to avoid the overhead of a fuse wrapper when an iterator is already well-behaved. Conforming to: RFC 1581 Closes: #35602
Diffstat (limited to 'src/libcollections/string.rs')
| -rw-r--r-- | src/libcollections/string.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs index 788c838cd3f..d4de726cfaf 100644 --- a/src/libcollections/string.rs +++ b/src/libcollections/string.rs @@ -57,7 +57,7 @@ use core::fmt; use core::hash; -use core::iter::FromIterator; +use core::iter::{FromIterator, FusedIterator}; use core::mem; use core::ops::{self, Add, AddAssign, Index, IndexMut}; use core::ptr; @@ -1995,3 +1995,6 @@ impl<'a> DoubleEndedIterator for Drain<'a> { self.iter.next_back() } } + +#[unstable(feature = "fused", issue = "35602")] +impl<'a> FusedIterator for Drain<'a> {} |