From 05c7330ca03650bbcb6a55f5fa490b3bb03c1940 Mon Sep 17 00:00:00 2001
From: The 8472 <git@infinite-source.de>
Date: Sat, 30 Jul 2022 01:48:16 +0200
Subject: Implement Default for some alloc/core iterators

This way one can `mem::take()` them out of structs or #[derive(Default)] on structs containing them.

These changes will be insta-stable.
---
 library/alloc/src/vec/into_iter.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'library/alloc/src/vec')

diff --git a/library/alloc/src/vec/into_iter.rs b/library/alloc/src/vec/into_iter.rs
index 37966007eb7..2be484c3dd4 100644
--- a/library/alloc/src/vec/into_iter.rs
+++ b/library/alloc/src/vec/into_iter.rs
@@ -347,6 +347,13 @@ impl<T, A: Allocator> FusedIterator for IntoIter<T, A> {}
 #[unstable(feature = "trusted_len", issue = "37572")]
 unsafe impl<T, A: Allocator> TrustedLen for IntoIter<T, A> {}
 
+#[stable(feature = "default_iters", since = "CURRENT_RUSTC_VERSION")]
+impl<T> Default for IntoIter<T> {
+    fn default() -> Self {
+        super::Vec::new().into_iter()
+    }
+}
+
 #[doc(hidden)]
 #[unstable(issue = "none", feature = "std_internals")]
 #[rustc_unsafe_specialization_marker]
-- 
cgit 1.4.1-3-g733a5