From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/petgraph/src/util.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 vendor/petgraph/src/util.rs

(limited to 'vendor/petgraph/src/util.rs')

diff --git a/vendor/petgraph/src/util.rs b/vendor/petgraph/src/util.rs
new file mode 100644
index 000000000..f4d28d9d4
--- /dev/null
+++ b/vendor/petgraph/src/util.rs
@@ -0,0 +1,25 @@
+use std::iter;
+
+pub fn enumerate<I>(iterable: I) -> iter::Enumerate<I::IntoIter>
+where
+    I: IntoIterator,
+{
+    iterable.into_iter().enumerate()
+}
+
+#[cfg(feature = "serde-1")]
+pub fn rev<I>(iterable: I) -> iter::Rev<I::IntoIter>
+where
+    I: IntoIterator,
+    I::IntoIter: DoubleEndedIterator,
+{
+    iterable.into_iter().rev()
+}
+
+pub fn zip<I, J>(i: I, j: J) -> iter::Zip<I::IntoIter, J::IntoIter>
+where
+    I: IntoIterator,
+    J: IntoIterator,
+{
+    i.into_iter().zip(j)
+}
-- 
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