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- Next: <a href="Varargs.html#Varargs" accesskey="n" rel="next">Varargs</a>, Up: <a href="Arglists.html#Arglists" accesskey="u" rel="up">Arglists</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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- <a name="ANSI_002dstandard-macros_002c-stdarg_002eh"></a>
- <h3 class="section">14.1 ANSI-standard macros, <samp>stdarg.h</samp></h3>
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- <p>In ANSI C, a function has a variable number of arguments when its
- parameter list ends in an ellipsis (<code>...</code>). The parameter list
- must also include at least one explicitly named argument; that argument
- is used to initialize the variable list data structure.
- </p>
- <p>ANSI C defines three macros (<code>va_start</code>, <code>va_arg</code>, and
- <code>va_end</code>) to operate on variable argument lists. <samp>stdarg.h</samp>
- also defines a special type to represent variable argument lists: this
- type is called <code>va_list</code>.
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