From 73d9be2102a247535f5352567ca7e6eaa2f7e26f Mon Sep 17 00:00:00 2001
From: Douglas Gregor <doug.gregor@gmail.com>
Date: Thu, 3 Oct 2002 14:16:18 +0000
Subject: [PATCH] Added BOOST_TRIBOOL_THIRD_STATE

[SVN r556]
---
 doc/tribool.html | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/tribool.html b/doc/tribool.html
index 3a411ac..aa6e2de 100644
--- a/doc/tribool.html
+++ b/doc/tribool.html
@@ -90,6 +90,11 @@
   }
 </pre>
 
+<p> Users may introduce additional keywords for the indeterminate value in addition to the implementation-supplied <code>indeterminate</code> using the <code>BOOST_TRIBOOL_THIRD_STATE</code> macro. For instance, the following macro instantiation (at the global scope) will introduce the keyword <code>maybe</code> as a synonym for <code>indeterminate</code> (also residing in the <code>boost</code> namespace):
+<pre>
+  BOOST_TRIBOOL_THIRD_STATE(maybe)
+</pre>
+
 <a name="tables"><h2>Truth Tables</h2></a>
 <p>
 <table>