From 30ba4bd8e2da15ce8e2fe3c8fbc339ee67cb3241 Mon Sep 17 00:00:00 2001
From: Lzu Tao <taolzu@gmail.com>
Date: Sat, 10 Aug 2019 17:16:58 +0000
Subject: [PATCH] Use Result::unwrap_or_else instead of matching

---
 src/libcore/slice/mod.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/libcore/slice/mod.rs b/src/libcore/slice/mod.rs
index 29afc43599620..ce5af13d4ca90 100644
--- a/src/libcore/slice/mod.rs
+++ b/src/libcore/slice/mod.rs
@@ -1371,10 +1371,7 @@ impl<T> [T] {
     /// ```
     /// let mut s = vec![0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];
     /// let num = 42;
-    /// let idx = match s.binary_search(&num) {
-    ///     Ok(idx) => idx,
-    ///     Err(idx) => idx,
-    /// };
+    /// let idx = s.binary_search(&num).unwrap_or_else(|x| x);
     /// s.insert(idx, num);
     /// assert_eq!(s, [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 42, 55]);
     /// ```