petgraph/util.rs
1
2use std::iter;
3
4pub fn enumerate<I>(iterable: I) -> iter::Enumerate<I::IntoIter>
5 where I: IntoIterator
6{
7 iterable.into_iter().enumerate()
8}
9
10#[cfg(feature = "serde-1")]
11pub fn rev<I>(iterable: I) -> iter::Rev<I::IntoIter>
12 where I: IntoIterator,
13 I::IntoIter: DoubleEndedIterator
14{
15 iterable.into_iter().rev()
16}
17
18pub fn zip<I, J>(i: I, j: J) -> iter::Zip<I::IntoIter, J::IntoIter>
19 where I: IntoIterator,
20 J: IntoIterator
21{
22 i.into_iter().zip(j)
23}