From 94acb6ee4ab21800c4fbd0d6d94dbfb15c686366 Mon Sep 17 00:00:00 2001
From: Denys Smirnov <denis.smirnov.91@gmail.com>
Date: Mon, 17 Oct 2016 17:12:29 +0300
Subject: [PATCH] add helper to check for zero uuid

---
 ioctl_h.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ioctl_h.go b/ioctl_h.go
index 0691e89..e460c89 100644
--- a/ioctl_h.go
+++ b/ioctl_h.go
@@ -25,8 +25,9 @@ var zeroUUID UUID
 
 type UUID [UUIDSize]byte
 
+func (id UUID) IsZero() bool { return id == zeroUUID }
 func (id UUID) String() string {
-	if id == zeroUUID {
+	if id.IsZero() {
 		return "<zero>"
 	}
 	buf := make([]byte, UUIDSize*2+4)