From 6acd90f0c91bfdb5ab2678fadaa571096a78ee5f Mon Sep 17 00:00:00 2001
From: Tobias Bucher <tobiasbucher5991@gmail.com>
Date: Tue, 29 Mar 2016 23:21:13 +0200
Subject: [PATCH] Add a note about overflowing in the `RangeFrom` iterator

---
 src/libcore/ops.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libcore/ops.rs b/src/libcore/ops.rs
index 44c498ef6d4e0..a2f84230afc44 100644
--- a/src/libcore/ops.rs
+++ b/src/libcore/ops.rs
@@ -1539,6 +1539,11 @@ impl<Idx: PartialOrd<Idx>> Range<Idx> {
 ///
 /// See the [`contains()`](#method.contains) method for its characterization.
 ///
+/// Note: Currently, no overflow checking is done for the iterator
+/// implementation; if you use an integer range and the integer overflows, it
+/// might panic in debug mode or create an endless loop in release mode. This
+/// overflow behavior might change in the future.
+///
 /// # Examples
 ///
 /// ```