From f6ab79d1aaedf6fbb8f566f1d7444d0da92a264f Mon Sep 17 00:00:00 2001
From: Florian Keller <github@floriankeller.de>
Date: Wed, 20 Dec 2017 11:43:49 +0100
Subject: [PATCH] docs(slice): Clarify half-open interval

---
 src/libcore/slice/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcore/slice/mod.rs b/src/libcore/slice/mod.rs
index 49c51f4f04fdc..ca5cf04b1d437 100644
--- a/src/libcore/slice/mod.rs
+++ b/src/libcore/slice/mod.rs
@@ -400,7 +400,7 @@ impl<T> SliceExt for [T] {
         while size > 1 {
             let half = size / 2;
             let mid = base + half;
-            // mid is always in [0, size).
+            // mid is always in [0, size), that means mid is >= 0 and < size.
             // mid >= 0: by definition
             // mid < size: mid = size / 2 + size / 4 + size / 8 ...
             let cmp = f(unsafe { s.get_unchecked(mid) });