From 463431dd719b01e232db301fc6ed9889d472a343 Mon Sep 17 00:00:00 2001
From: linsonglin <linsonglin@roboeye.ai>
Date: Tue, 23 Feb 2021 11:04:04 +0800
Subject: [PATCH] fix shift count type int, must be unsigned integer

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

diff --git a/bitfield/bitfield.go b/bitfield/bitfield.go
index 1ca7ecd..817ebb1 100644
--- a/bitfield/bitfield.go
+++ b/bitfield/bitfield.go
@@ -10,7 +10,7 @@ func (bf Bitfield) HasPiece(index int) bool {
 	if byteIndex < 0 || byteIndex >= len(bf) {
 		return false
 	}
-	return bf[byteIndex]>>(7-offset)&1 != 0
+	return bf[byteIndex]>>uint(7-offset)&1 != 0
 }
 
 // SetPiece sets a bit in the bitfield
@@ -22,5 +22,5 @@ func (bf Bitfield) SetPiece(index int) {
 	if byteIndex < 0 || byteIndex >= len(bf) {
 		return
 	}
-	bf[byteIndex] |= 1 << (7 - offset)
+	bf[byteIndex] |= 1 << uint(7 - offset)
 }