From 24bfd652eefab775dd9055abffc3a55a0eca5d9c Mon Sep 17 00:00:00 2001
From: Kyle Consalus <consalus@gmail.com>
Date: Wed, 5 May 2010 09:57:53 -0700
Subject: [PATCH] Conversion from loop to copy().

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/1072041
---
 src/pkg/strings/strings.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/pkg/strings/strings.go b/src/pkg/strings/strings.go
index 90417f811d..b6d84d07aa 100644
--- a/src/pkg/strings/strings.go
+++ b/src/pkg/strings/strings.go
@@ -275,9 +275,7 @@ func Map(mapping func(rune int) int, s string) string {
 				// Grow the buffer.
 				maxbytes = maxbytes*2 + utf8.UTFMax
 				nb := make([]byte, maxbytes)
-				for i, c := range b[0:nbytes] {
-					nb[i] = c
-				}
+				copy(nb, b[0:nbytes])
 				b = nb
 			}
 			nbytes += utf8.EncodeRune(rune, b[nbytes:maxbytes])
-- 
2.50.0