From 334cc1b02398be651373851653017e6cbf588f9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dariusz=20G=C3=B3recki?= <darek.krk@gmail.com>
Date: Thu, 4 Jun 2015 11:23:11 +0100
Subject: [PATCH] Simplify arithmetic so it's easier to understand

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

diff --git a/queue.go b/queue.go
index 1b3e168..2dc8d93 100644
--- a/queue.go
+++ b/queue.go
@@ -35,8 +35,8 @@ func (q *Queue) resize() {
 	if q.tail > q.head {
 		copy(newBuf, q.buf[q.head:q.tail])
 	} else {
-		copy(newBuf, q.buf[q.head:len(q.buf)])
-		copy(newBuf[len(q.buf)-q.head:], q.buf[:q.tail])
+		n := copy(newBuf, q.buf[q.head:])
+		copy(newBuf[n:], q.buf[:q.tail])
 	}
 
 	q.head = 0