From: Robert Griesemer <gri@golang.org>
Date: Tue, 10 Nov 2009 23:33:59 +0000 (-0800)
Subject: better code for a copy loop
X-Git-Tag: weekly.2009-11-10.1~17
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9e0d2fa89b7e9f2b8be546e4182042e7813f9c36;p=gostls13.git

better code for a copy loop

R=rsc
https://golang.org/cl/152046
---

diff --git a/src/pkg/container/vector/vector.go b/src/pkg/container/vector/vector.go
index 714312be48..0a4db3b1f9 100644
--- a/src/pkg/container/vector/vector.go
+++ b/src/pkg/container/vector/vector.go
@@ -19,8 +19,8 @@ type Vector struct {
 
 
 func copy(dst, src []Element) {
-	for i := 0; i < len(src); i++ {
-		dst[i] = src[i]
+	for i, x := range src {
+		dst[i] = x
 	}
 }