freebsd-dev/contrib/sendmail/libsm/gen.html
2002-06-11 21:12:04 +00:00

44 lines
910 B
HTML

<html>
<head>
<title>libsm : General Definitions</title>
</head>
<body>
<a href="index.html">Back to libsm overview</a>
<center>
<h1> libsm : General Definitions </h1>
<br> $Id: gen.html,v 1.5 2000/12/08 21:41:42 ca Exp $
</center>
<h2> Introduction </h2>
The header file <tt>&lt;sm/gen.h&gt;</tt>
contains general definitions that are used by every other
header file in <b>libsm</b>.
<h2> Synopsis </h2>
<pre>
#include &lt;sm/gen.h&gt;
#define NULL ((void*)0)
typedef int bool;
#define false 0
#define true 1
#define SM_MAX(a, b) ((a) &gt; (b) ? (a) : (b))
#define SM_MIN(a, b) ((a) &lt; (b) ? (a) : (b))
/*
** The following types can be accessed and updated atomically.
** This is relevant in the context of signal handlers and threads.
*/
typedef <i>some signed integral type</i> SM_ATOMIC_INT_T;
typedef <i>some unsigned integral type</i> SM_ATOMIC_UINT_T;
</pre>
</body>
</html>