1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Reference</title> 6<link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../tribool.html" title="Chapter 23. Boost.Tribool"> 10<link rel="prev" href="tutorial.html" title="Tutorial"> 11<link rel="next" href="../boost/logic/tribool.html" title="Class tribool"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td> 16<td align="center"><a href="../../../index.html">Home</a></td> 17<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="tutorial.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../tribool.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../boost/logic/tribool.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="section"> 27<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 28<a name="tribool.reference"></a>Reference</h2></div></div></div> 29<div class="toc"><dl class="toc"> 30<dt><span class="section"><a href="reference.html#header.boost.logic.tribool_hpp">Header <boost/logic/tribool.hpp></a></span></dt> 31<dt><span class="section"><a href="reference.html#header.boost.logic.tribool_fwd_hpp">Header <boost/logic/tribool_fwd.hpp></a></span></dt> 32<dt><span class="section"><a href="reference.html#header.boost.logic.tribool_io_hpp">Header <boost/logic/tribool_io.hpp></a></span></dt> 33</dl></div> 34<div class="section"> 35<div class="titlepage"><div><div><h3 class="title"> 36<a name="header.boost.logic.tribool_hpp"></a>Header <<a href="../../../../../boost/logic/tribool.hpp" target="_top">boost/logic/tribool.hpp</a>></h3></div></div></div> 37<pre class="synopsis"> 38 39<a class="link" href="../BOOST_TRIBOOL_THIRD_STATE.html" title="Macro BOOST_TRIBOOL_THIRD_STATE">BOOST_TRIBOOL_THIRD_STATE</a>(Name)</pre> 40<pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> 41 <span class="keyword">namespace</span> <span class="identifier">logic</span> <span class="special">{</span> 42 <span class="keyword">class</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">;</span> 43 <span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">bool</span> <a class="link" href="../boost/logic/indeterminate.html" title="Function indeterminate"><span class="identifier">indeterminate</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">)</span><span class="special">;</span> 44 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_.html" title="Function operator!"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 45 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator&&"><span class="keyword">operator</span><span class="special">&&</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 46 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator&&"><span class="keyword">operator</span><span class="special">&&</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> 47 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator&&"><span class="keyword">operator</span><span class="special">&&</span></a><span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 48 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator&&"><span class="keyword">operator</span><span class="special">&&</span></a><span class="special">(</span><span class="identifier">indeterminate_keyword_t</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 49 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator&&"><span class="keyword">operator</span><span class="special">&&</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="identifier">indeterminate_keyword_t</span><span class="special">)</span><span class="special">;</span> 50 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_idm46053020544032.html" title="Function operator||"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 51 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_idm46053020544032.html" title="Function operator||"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> 52 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_idm46053020544032.html" title="Function operator||"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 53 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_idm46053020544032.html" title="Function operator||"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><span class="identifier">indeterminate_keyword_t</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 54 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator_idm46053020544032.html" title="Function operator||"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="identifier">indeterminate_keyword_t</span><span class="special">)</span><span class="special">;</span> 55 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator=="><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 56 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator=="><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> 57 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator=="><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 58 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator=="><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="identifier">indeterminate_keyword_t</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 59 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator=="><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="identifier">indeterminate_keyword_t</span><span class="special">)</span><span class="special">;</span> 60 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator!="><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 61 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator!="><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> 62 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator!="><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 63 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator!="><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="identifier">indeterminate_keyword_t</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 64 <span class="identifier">BOOST_CONSTEXPR</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__.html" title="Function operator!="><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">,</span> <span class="identifier">indeterminate_keyword_t</span><span class="special">)</span><span class="special">;</span> 65 <span class="special">}</span> 66<span class="special">}</span></pre> 67</div> 68<div class="section"><div class="titlepage"><div><div><h3 class="title"> 69<a name="header.boost.logic.tribool_fwd_hpp"></a>Header <<a href="../../../../../boost/logic/tribool_fwd.hpp" target="_top">boost/logic/tribool_fwd.hpp</a>></h3></div></div></div></div> 70<div class="section"> 71<div class="titlepage"><div><div><h3 class="title"> 72<a name="header.boost.logic.tribool_io_hpp"></a>Header <<a href="../../../../../boost/logic/tribool_io.hpp" target="_top">boost/logic/tribool_io.hpp</a>></h3></div></div></div> 73<pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> 74 <span class="keyword">namespace</span> <span class="identifier">logic</span> <span class="special">{</span> 75 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">></span> <span class="keyword">class</span> <a class="link" href="../boost/logic/indeterminate_name.html" title="Class template indeterminate_name">indeterminate_name</a><span class="special">;</span> 76 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> 77 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <a class="link" href="../boost/logic/get_defa_idm46053020440096.html" title="Function template get_default_indeterminate_name"><span class="identifier">get_default_indeterminate_name</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 78 79 <span class="comment">// Returns the character string "indeterminate". </span> 80 <span class="keyword">template</span><span class="special"><</span><span class="special">></span> 81 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span> <span class="keyword">char</span> <span class="special">></span> <a name="boost.logic.get_defa_idm46053020437024"></a><span class="identifier">get_default_indeterminate_name</span><span class="special"><</span><span class="keyword">char</span> <span class="special">></span><span class="special">(</span><span class="special">)</span><span class="special">;</span> 82 83 <span class="comment">// Returns the wide character string L"indeterminate". </span> 84 <span class="keyword">template</span><span class="special"><</span><span class="special">></span> 85 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span> <span class="keyword">wchar_t</span> <span class="special">></span> <a name="boost.logic.get_defa_idm46053020435760"></a><span class="identifier">get_default_indeterminate_name</span><span class="special"><</span><span class="keyword">wchar_t</span> <span class="special">></span><span class="special">(</span><span class="special">)</span><span class="special">;</span> 86 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 87 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 88 <a class="link" href="../boost/logic/operator_idm46053020434496.html" title="Function template operator<<"><span class="keyword">operator</span><span class="special"><<</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span> 89 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 90 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 91 <a class="link" href="../boost/logic/operator_idm46053020425808.html" title="Function template operator<<"><span class="keyword">operator</span><span class="special"><<</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">)</span><span class="special">;</span> 92 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 93 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 94 <a class="link" href="../boost/logic/operator_idm46053020419408.html" title="Function template operator>>"><span class="keyword">operator</span><span class="special">>></span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 95 <span class="special">}</span> 96<span class="special">}</span></pre> 97</div> 98</div> 99<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 100<td align="left"></td> 101<td align="right"><div class="copyright-footer">Copyright © 2002-2004 Douglas Gregor<p>Use, modification and distribution is subject to the Boost 102 Software License, Version 1.0. (See accompanying file 103 <code class="filename">LICENSE_1_0.txt</code> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</p> 104</div></td> 105</tr></table> 106<hr> 107<div class="spirit-nav"> 108<a accesskey="p" href="tutorial.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../tribool.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../boost/logic/tribool.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 109</div> 110</body> 111</html> 112
