From 01a1c9169686deb54df6b73ee8dcdb1a5cb88634 Mon Sep 17 00:00:00 2001
From: Andrew Gerrand <adg@golang.org>
Date: Wed, 29 Jun 2011 14:58:01 +1000
Subject: [PATCH] [release-branch.r58] doc/faq: add question about converting
 from []T to []interface{}
MIME-Version: 1.0
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««« CL 4639046 / 995095e59d58
doc/faq: add question about converting from []T to []interface{}

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4639046
»»»

R=r
CC=golang-dev
https://golang.org/cl/4630077
---
 doc/go_faq.html | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/doc/go_faq.html b/doc/go_faq.html
index 953092f051..ef70033ace 100644
--- a/doc/go_faq.html
+++ b/doc/go_faq.html
@@ -598,6 +598,24 @@ the interface idea. Sometimes, though, they're necessary to resolve ambiguities
 among similar interfaces.
 </p>
 
+<h3 id="convert_slice_of_interface">
+Can I convert a []T to an []interface{}?</h3>
+
+<p>
+Not directly because they do not have the same representation in memory.
+It is necessary to copy the elements individually to the destination
+slice. This example converts a slice of <code>int</code> to a slice of
+<code>interface{}</code>:
+</p>
+
+<pre>
+t := []int{1, 2, 3, 4}
+s := make([]interface{}, len(t))
+for i, v := range t {
+	s[i] = v
+}
+</pre>
+
 <h2 id="values">Values</h2>
 
 <h3 id="conversions">
-- 
2.50.0