From 9d07d37f317c2e58204c8aa2def2d8067133633b Mon Sep 17 00:00:00 2001
From: Robert Griesemer <gri@golang.org>
Date: Mon, 28 Dec 2009 15:48:58 -0800
Subject: [PATCH] A couple of tighter loops.

(I was looking at this code accidentally because of some gofmt
issues and thought that one could write this more effectively.
You may have deliberately chosen not to use ranges here to make
the index range clearer. Just let me know.)

R=agl, agl1
CC=golang-dev
https://golang.org/cl/181084
---
 src/pkg/crypto/md5/md5.go | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/src/pkg/crypto/md5/md5.go b/src/pkg/crypto/md5/md5.go
index 2ee57f4214..fd0984a418 100644
--- a/src/pkg/crypto/md5/md5.go
+++ b/src/pkg/crypto/md5/md5.go
@@ -68,8 +68,8 @@ func (d *digest) Write(p []byte) (nn int, err os.Error) {
 	n := _Block(d, p)
 	p = p[n:]
 	if len(p) > 0 {
-		for i := 0; i < len(p); i++ {
-			d.x[i] = p[i]
+		for i, x := range p {
+			d.x[i] = x
 		}
 		d.nx = len(p)
 	}
@@ -100,16 +100,12 @@ func (d *digest) Sum() []byte {
 
 	p := make([]byte, 16)
 	j := 0
-	for i := 0; i < 4; i++ {
-		s := d.s[i]
-		p[j] = byte(s)
-		j++
-		p[j] = byte(s >> 8)
-		j++
-		p[j] = byte(s >> 16)
-		j++
-		p[j] = byte(s >> 24)
-		j++
+	for _, s := range d.s {
+		p[j+0] = byte(s >> 0)
+		p[j+1] = byte(s >> 8)
+		p[j+2] = byte(s >> 16)
+		p[j+3] = byte(s >> 24)
+		j += 4
 	}
 	return p
 }
-- 
2.50.0