From ec246695c5f8d05692da189f89645495c277eba8 Mon Sep 17 00:00:00 2001
From: yuin <yuin@inforno.net>
Date: Sun, 8 Dec 2019 19:00:20 +0900
Subject: [PATCH] Fix fail on go1.12

---
 util/util.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/util.go b/util/util.go
index 00cdbbb..479a9fa 100644
--- a/util/util.go
+++ b/util/util.go
@@ -844,7 +844,7 @@ func (s *bytesFilter) Add(b []byte) {
 		m = l
 	}
 	for i := 0; i < m; i++ {
-		s.chars[b[i]] |= 1 << i
+		s.chars[b[i]] |= 1 << uint8(i)
 	}
 	h := bytesHash(b) % uint64(len(s.slots))
 	slot := s.slots[h]
@@ -876,7 +876,7 @@ func (s *bytesFilter) Contains(b []byte) bool {
 		m = l
 	}
 	for i := 0; i < m; i++ {
-		if (s.chars[b[i]] & (1 << i)) == 0 {
+		if (s.chars[b[i]] & (1 << uint8(i))) == 0 {
 			return false
 		}
 	}