What should ellipsis in attribute-list in C++ be used for? : <p>In <a href="http://en.cppreference.com/w/cpp/language/attributes" rel="noreferrer">C++ reference</a> I found information about allowed syntax of attributes in C++, it is:</p>

<pre><code>[[attribute-list]]
[[ using attribute-namespace : attribute-list ]]
</code></pre>

<p>"where attribute-list is a comma-separated sequence of zero or more attributes (possibly ending with an ellipsis ... indicating a pack expansion)" </p>

<p>I've tried to use its, but I see no difference between:</p>

<pre><code>[[deprecated]] void f() 
{
}
</code></pre>

<p>and</p>

<pre><code>[[deprecated...]] void f() 
{
}
</code></pre>

<p>In both cases output is the same.</p>
