From 449007f2dc139a7d3a5e209e1d5003a70ce9e294 Mon Sep 17 00:00:00 2001
From: lucasallison <lucasgallison@gmail.com>
Date: Tue, 7 Nov 2023 12:49:05 +0100
Subject: [PATCH] Changed the `assert_within_bounds` in the
 `extend_from_within` function to allow ranges that include the last element
 of the vector.

---
 src/vec/api.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vec/api.rs b/src/vec/api.rs
index 09d2d65d..a962b0f7 100644
--- a/src/vec/api.rs
+++ b/src/vec/api.rs
@@ -965,7 +965,7 @@ where
 	where R: RangeExt<usize> {
 		let old_len = self.len();
 		let src = src.normalize(0, old_len);
-		self.assert_in_bounds(src.end, 0 .. old_len);
+		self.assert_in_bounds(src.end, 0 ..=old_len);
 		self.resize(old_len + src.len(), false);
 		unsafe {
 			self.copy_within_unchecked(src, old_len);