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<a name="FWEB-macros-with-variable-arguments"></a>
<h4 class="subsubsection">7.2.1.1 <small>FWEB</small> macros with variable arguments</h4>
<a name="index-Macros_002c-with-variable-arguments"></a>
<a name="index-Variable-arguments"></a>
<p>An important extension to the ANSI-C syntax is to allow macros with
variable (optional) arguments. <small>FWEB</small> macros with a variable number of arguments
are indicated by an ellipsis, as in
</p>
<div class="example">
<pre class="example">@m VAR(x,y,z,...) text
</pre></div>
<p>The tokens ‘<samp>#0</samp>’ (number of variable arguments), ‘<samp>#<i>n</i></samp>’
(value of the <i>n</i>th optional argument), and ‘<samp>#.</samp>’ (comma-delimited list of
the optional arguments) are useful in this context.
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