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| author | Kyle Huey <khuey@kylehuey.com> | 2019-04-19 21:13:37 -0700 |
|---|---|---|
| committer | Kyle Huey <khuey@kylehuey.com> | 2019-04-19 21:52:43 -0700 |
| commit | 3e86cf36b5114f201868bf459934fe346a76a2d4 (patch) | |
| tree | 60a7de7db6b5733586c144a3dfe113c1fc70dfcd /src/libstd/env.rs | |
| parent | 8aaae4294b16b8070a52b858364f440873bfc95c (diff) | |
| download | rust-3e86cf36b5114f201868bf459934fe346a76a2d4.tar.gz rust-3e86cf36b5114f201868bf459934fe346a76a2d4.zip | |
Add implementations of last in terms of next_back on a bunch of DoubleEndedIterators.
r?Manishearth
Diffstat (limited to 'src/libstd/env.rs')
| -rw-r--r-- | src/libstd/env.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libstd/env.rs b/src/libstd/env.rs index 01b301cb43d..6cb160067f7 100644 --- a/src/libstd/env.rs +++ b/src/libstd/env.rs @@ -740,6 +740,10 @@ impl Iterator for Args { self.inner.next().map(|s| s.into_string().unwrap()) } fn size_hint(&self) -> (usize, Option<usize>) { self.inner.size_hint() } + #[inline] + fn last(mut self) -> Option<String> { + self.next_back() + } } #[stable(feature = "env", since = "1.0.0")] @@ -775,6 +779,8 @@ impl Iterator for ArgsOs { type Item = OsString; fn next(&mut self) -> Option<OsString> { self.inner.next() } fn size_hint(&self) -> (usize, Option<usize>) { self.inner.size_hint() } + #[inline] + fn last(mut self) -> Option<OsString> { self.next_back() } } #[stable(feature = "env", since = "1.0.0")] |