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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
commit2ff14448863ac1a1dd9533461708e29aae170c2d (patch)
tree85b9fea2bbfe3f06473cfa381eed11f273b57c5c /library/core/tests/iter/adapters/by_ref_sized.rs
parentAdding debian version 1.64.0+dfsg1-1. (diff)
downloadrustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz
rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/core/tests/iter/adapters/by_ref_sized.rs')
-rw-r--r--library/core/tests/iter/adapters/by_ref_sized.rs20
1 files changed, 20 insertions, 0 deletions
diff --git a/library/core/tests/iter/adapters/by_ref_sized.rs b/library/core/tests/iter/adapters/by_ref_sized.rs
new file mode 100644
index 000000000..a9c066f0e
--- /dev/null
+++ b/library/core/tests/iter/adapters/by_ref_sized.rs
@@ -0,0 +1,20 @@
+use core::iter::*;
+
+#[test]
+fn test_iterator_by_ref_sized() {
+ let a = ['a', 'b', 'c', 'd'];
+
+ let mut s = String::from("Z");
+ let mut it = a.iter().copied();
+ ByRefSized(&mut it).take(2).for_each(|x| s.push(x));
+ assert_eq!(s, "Zab");
+ ByRefSized(&mut it).fold((), |(), x| s.push(x));
+ assert_eq!(s, "Zabcd");
+
+ let mut s = String::from("Z");
+ let mut it = a.iter().copied();
+ ByRefSized(&mut it).rev().take(2).for_each(|x| s.push(x));
+ assert_eq!(s, "Zdc");
+ ByRefSized(&mut it).rfold((), |(), x| s.push(x));
+ assert_eq!(s, "Zdcba");
+}