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 5a7966d961052d052f2c0911d8351ff85790087b..57e1b5dacb3faf3dbecb5bbecba6d242580164d5 100644 (file)
--- 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] != '/'
                }
        }