From: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Date: Sat, 24 Jul 2021 11:34:16 +0000 (+0700)
Subject: doc: clarify non-nil zero length slice to array pointer conversion
X-Git-Tag: go1.17rc2~1^2~12
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=ecaa6816bfdbcef2ad749958a11a321de5c2ebd8;p=gostls13.git

doc: clarify non-nil zero length slice to array pointer conversion

There is an example for nil slice already, so adding example for non-nil
zero length slice, too, clarifying to the reader that the result is also
non-nil and different from nil slice case.

Updates #395

Change-Id: I019db1b1a1c0c621161ecaaacab5a4d888764b1a
Reviewed-on: https://go-review.googlesource.com/c/go/+/336890
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
---

diff --git a/doc/go_spec.html b/doc/go_spec.html
index cc7ed6a561..0e14a1f3b6 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -1,6 +1,6 @@
 <!--{
 	"Title": "The Go Programming Language Specification",
-	"Subtitle": "Version of Jul 24, 2021",
+	"Subtitle": "Version of Jul 26, 2021",
 	"Path": "/ref/spec"
 }-->
 
@@ -4335,6 +4335,9 @@ s4 := (*[4]byte)(s)      // panics: len([4]byte) > len(s)
 var t []string
 t0 := (*[0]string)(t)    // t0 == nil
 t1 := (*[1]string)(t)    // panics: len([1]string) > len(t)
+
+u := make([]byte, 0)
+u0 = (*[0]byte)(u)       // u0 != nil
 </pre>
 
 <h3 id="Constant_expressions">Constant expressions</h3>