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 cc7ed6a..0e14a1f 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 @@
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>
