From: Kunpei Sakai <namusyaka@gmail.com>
Date: Thu, 11 Jan 2018 00:58:16 +0000 (+0900)
Subject: net/http: avoid for-loop if possible
X-Git-Tag: go1.10beta2~2
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=6631f22776ab56f306bd00d44bc2e3b8d0b90585;p=gostls13.git

net/http: avoid for-loop if possible

Change-Id: I01900c3a2ebdda8c90d0585f179a39ee890c417f
Reviewed-on: https://go-review.googlesource.com/87336
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/net/http/server.go b/src/net/http/server.go
index 5a7966d961..57e1b5dacb 100644
--- a/src/net/http/server.go
+++ b/src/net/http/server.go
@@ -2242,9 +2242,12 @@ func (mux *ServeMux) shouldRedirect(host, path string) bool {
 	}
 
 	n := len(path)
+	if n == 0 {
+		return false
+	}
 	for _, c := range p {
 		if _, exist := mux.m[c+"/"]; exist {
-			return n > 0 && path[n-1] != '/'
+			return path[n-1] != '/'
 		}
 	}