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spec: clarify that []byte("") must be non-nil

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The example text below suggests that []byte("") always evaluates to
the non-nil value []byte{}, but the text proper doesn't explicitly
require that. This CL makes it clear that it must not evaluate to
[]byte(nil), which otherwise was allowed by the wording.

Change-Id: I6564bfd5e2fd0c820d9b55d17406221ff93ce80c
Reviewed-on: https://go-review.googlesource.com/c/go/+/521035
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Matthew Dempsky 2023-08-18 15:52:34 -07:00 committed by Gopher Robot
parent e3c80f5778
commit ba6fe5172d
1 changed files with 2 additions and 2 deletions
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4
doc/go_spec.html
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@ -1,6 +1,6 @@
<!--{
"Title": "The Go Programming Language Specification",
"Subtitle": "Version of Aug 18, 2023",
"Subtitle": "Version of Aug 21, 2023",
"Path": "/ref/spec"
}-->
@ -5570,7 +5570,7 @@ myString([]myRune{0x1f30e}) // "\U0001f30e" == "🌎"
<li>
Converting a value of a string type to a slice of bytes type
yields a slice whose successive elements are the bytes of the string.
yields a non-nil slice whose successive elements are the bytes of the string.
<pre>
[]byte("hellø") // []byte{'h', 'e', 'l', 'l', '\xc3', '\xb8'}