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| author | kennytm <kennytm@gmail.com> | 2018-11-13 13:03:24 +0800 |
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| committer | kennytm <kennytm@gmail.com> | 2018-11-13 19:20:58 +0800 |
| commit | 4d764407e959ac7a6bdba33b38eee4a3ffd97724 (patch) | |
| tree | e28db30405ff10faa1e2f691ab6c3bf9690e2a9b | |
| parent | 99986a5a057a02fb37e41c3e4fe20db1f75aa6cc (diff) | |
| parent | 4da9f1069f16ec06912f85f0ca684f09f36d45a7 (diff) | |
| download | rust-4d764407e959ac7a6bdba33b38eee4a3ffd97724.tar.gz rust-4d764407e959ac7a6bdba33b38eee4a3ffd97724.zip | |
Rollup merge of #55896 - rust-lang:opt-fuse, r=shepmaster
Document optimizations enabled by FusedIterator When reading this I wondered what “some significant optimizations” referred to. As far as I can tell from reading code, the specialization of `.fuse()` is the only case where `FusedIterator` has any impact at all. Is this accurate @Stebalien?
| -rw-r--r-- | src/libcore/iter/traits.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcore/iter/traits.rs b/src/libcore/iter/traits.rs index f95f8e7dbcb..d2c5a3bed28 100644 --- a/src/libcore/iter/traits.rs +++ b/src/libcore/iter/traits.rs @@ -960,7 +960,7 @@ impl<T, U, E> Product<Result<U, E>> for Result<T, E> /// /// Calling next on a fused iterator that has returned `None` once is guaranteed /// to return [`None`] again. This trait should be implemented by all iterators -/// that behave this way because it allows for some significant optimizations. +/// that behave this way because it allows optimizing [`Iterator::fuse`]. /// /// Note: In general, you should not use `FusedIterator` in generic bounds if /// you need a fused iterator. Instead, you should just call [`Iterator::fuse`] |