ing element-wise comparison.
</p>

<pre><!--{{code "/doc/progs/go1.go" `/type Day struct/` `/Printf/`}}
-->    type Day struct {
        long  string
        short string
    }
    Christmas := Day{&#34;Christmas&#34;, &#34;XMas&#34;}
    Thanksgiving := Day{&#34;Thanksgiving&#34;, &#34;Turkey&#34;}
    holiday := map[Day]bool{
        Christmas:    true,
        Thanksgiving: true,
    }
    fmt.Printf(&#34;Christmas is a holiday: %t\n&#34;, holiday[Christmas])</pre>

<p>
Second, Go 1 removes the definitio