From 4ef6847d4df609054caca328b69b4ee5335426ae Mon Sep 17 00:00:00 2001
From: Manish Goregaokar <manishsmail@gmail.com>
Date: Mon, 18 Dec 2017 10:22:53 -0800
Subject: Use memchr for [i8]::contains as well

---
 src/libcore/slice/mod.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/libcore/slice')

diff --git a/src/libcore/slice/mod.rs b/src/libcore/slice/mod.rs
index 346ee273311..7b08ec13102 100644
--- a/src/libcore/slice/mod.rs
+++ b/src/libcore/slice/mod.rs
@@ -2635,3 +2635,11 @@ impl SliceContains for u8 {
         memchr::memchr(*self, x).is_some()
     }
 }
+
+impl SliceContains for i8 {
+    fn slice_contains(&self, x: &[Self]) -> bool {
+        let byte = *self as u8;
+        let bytes: &[u8] = unsafe { from_raw_parts(x.as_ptr() as *const u8, x.len()) };
+        memchr::memchr(byte, bytes).is_some()
+    }
+}
-- 
cgit 1.4.1-3-g733a5