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  30 <dt><span class="section"><a href="reference.html#header.boost.logic.tribool_hpp">Header &lt;boost/logic/tribool.hpp&gt;</a></span></dt>
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  35 <div class="titlepage"><div><div><h3 class="title">
  36 <a name="header.boost.logic.tribool_hpp"></a>Header &lt;<a href="../../../../../boost/logic/tribool.hpp" target="_top">boost/logic/tribool.hpp</a>&gt;</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&amp;&amp;"><span class="keyword">operator</span><span class="special">&amp;&amp;</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&amp;&amp;"><span class="keyword">operator</span><span class="special">&amp;&amp;</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&amp;&amp;"><span class="keyword">operator</span><span class="special">&amp;&amp;</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&amp;&amp;"><span class="keyword">operator</span><span class="special">&amp;&amp;</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&amp;&amp;"><span class="keyword">operator</span><span class="special">&amp;&amp;</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_idm45206260823936.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_idm45206260823936.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_idm45206260823936.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_idm45206260823936.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_idm45206260823936.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 &lt;<a href="../../../../../boost/logic/tribool_fwd.hpp" target="_top">boost/logic/tribool_fwd.hpp</a>&gt;</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 &lt;<a href="../../../../../boost/logic/tribool_io.hpp" target="_top">boost/logic/tribool_io.hpp</a>&gt;</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">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</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">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span>
  77       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span> <a class="link" href="../boost/logic/get_defa_idm45206260720000.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">&lt;</span><span class="special">&gt;</span>
  81       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="keyword">char</span> <span class="special">&gt;</span> <a name="boost.logic.get_defa_idm45206260716928"></a><span class="identifier">get_default_indeterminate_name</span><span class="special">&lt;</span><span class="keyword">char</span> <span class="special">&gt;</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">&lt;</span><span class="special">&gt;</span>
  85       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="keyword">wchar_t</span> <span class="special">&gt;</span> <a name="boost.logic.get_defa_idm45206260715664"></a><span class="identifier">get_default_indeterminate_name</span><span class="special">&lt;</span><span class="keyword">wchar_t</span> <span class="special">&gt;</span><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  86     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span>
  87       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span>
  88       <a class="link" href="../boost/logic/operator_idm45206260714400.html" title="Function template operator&lt;&lt;"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</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">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span>
  90       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span>
  91       <a class="link" href="../boost/logic/operator_idm45206260705712.html" title="Function template operator&lt;&lt;"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</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">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">&gt;</span>
  93       <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span>
  94       <a class="link" href="../boost/logic/operator_idm45206260699312.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  95   <span class="special">}</span>
  96 <span class="special">}</span></pre>
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