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Add peek_index to Enumerate #130682

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Add peek_index to Enumerate #130682

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f165ff4
Add `peek_index` to `Enumerate`
x4exr Sep 22, 2024
6e10d65
Add unstable attribute with tracking issue to `peek_index`
x4exr Sep 22, 2024
fb199e0
Add missing documentation on public method.
x4exr Sep 22, 2024
cfe6e65
Included more documentation regarding the expected use case
x4exr Sep 22, 2024
1c49225
Replaced reference to next in doc with [`Iterator::next`]
x4exr Sep 22, 2024
66343c6
Ran `./x.py fmt`
x4exr Sep 22, 2024
d8f391f
Fix typo in doc comment
x4exr Sep 22, 2024
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4 changes: 4 additions & 0 deletions library/core/src/iter/adapters/enumerate.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,10 @@ impl<I> Enumerate<I> {
pub(in crate::iter) fn new(iter: I) -> Enumerate<I> {
Enumerate { iter, count: 0 }
}

pub fn peek_index(&self) -> usize {
self.count
}
}

#[stable(feature = "rust1", since = "1.0.0")]
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