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 golang#395 Change-Id: I019db1b1a1c0c621161ecaaacab5a4d888764b1a Reviewed-on: https://go-review.googlesource.com/c/go/+/336890 Trust: Cuong Manh Le <[email protected]> Trust: Robert Griesemer <[email protected]> Run-TryBot: Cuong Manh Le <[email protected]> TryBot-Result: Go Bot <[email protected]> Reviewed-by: Robert Griesemer <[email protected]>
Gerrard-YNWA · Jul 26, 2021 · ecaa681 · ecaa681
1 parent 1868f82
commit ecaa681
Showing 1 changed file with 4 additions and 1 deletion.
diff --git 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 @@ <h4 id="Conversions_from_slice_to_array_pointer">Conversions from slice to array
 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>