From: Gabriel Aszalos <gabriel.aszalos@gmail.com>
Date: Mon, 18 Sep 2017 15:07:21 +0000 (+0200)
Subject: bytes: removed unnecessary slicing on copy
X-Git-Tag: go1.10beta1~1081
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=66ce8e383f1070320b9d63d06dc7f5ec40d35135;p=gostls13.git

bytes: removed unnecessary slicing on copy

Change-Id: Ia42e3479c852a88968947411de8b32e5bcda5ae3
Reviewed-on: https://go-review.googlesource.com/64371
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/bytes/buffer.go b/src/bytes/buffer.go
index 67566a13d9..099e431a36 100644
--- a/src/bytes/buffer.go
+++ b/src/bytes/buffer.go
@@ -131,7 +131,7 @@ func (b *Buffer) grow(n int) int {
 		// slice. We only need m+n <= c to slide, but
 		// we instead let capacity get twice as large so we
 		// don't spend all our time copying.
-		copy(b.buf[:], b.buf[b.off:])
+		copy(b.buf, b.buf[b.off:])
 	} else if c > maxInt-c-n {
 		panic(ErrTooLarge)
 	} else {