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| 27 | <div class="refnamediv"> |
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| 28 | <h2><span class="refentrytitle">Function template operator<<</span></h2> |
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| 29 | <p>boost::logic::operator<< — Writes the value of a tribool to a stream. </p> |
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| 30 | </div> |
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| 31 | <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> |
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| 32 | <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"> |
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| 33 | <span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> CharT, <span class="bold"><strong>typename</strong></span> Traits> |
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| 34 | <span class="type">std::basic_ostream< CharT, Traits > &</span> |
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| 35 | <span class="bold"><strong>operator</strong></span><<(std::basic_ostream< CharT, Traits > & out, <a href="boost/logic/tribool.html" title="Class tribool">tribool</a> x);</pre></div> |
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| 36 | <div class="refsect1" lang="en"> |
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| 37 | <a name="id1565707"></a><h2>Description</h2> |
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| 38 | <p>When the value of <code class="computeroutput">x</code> is either <code class="computeroutput">true</code> or <code class="computeroutput">false</code> , this routine is semantically equivalent to: </p> |
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| 39 | <pre class="programlisting"> out << static_cast<bool>(x); |
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| 40 | </pre> |
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| 41 | <p>When <code class="computeroutput">x</code> has an indeterminate value, it outputs either the integer value 2 (if <code class="computeroutput">(out.flags() & std::ios_base::boolalpha) == 0</code> ) or the name of the indeterminate value. The name of the indeterminate value comes from the indeterminate_name facet (if it is defined in the output stream's locale), or from the get_default_indeterminate_name function (if it is not defined in the locale or if the C++ standard library implementation does not support locales).</p> |
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| 42 | <p></p> |
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| 43 | <p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>: |
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| 44 | |
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| 45 | <code class="computeroutput">out</code></p> |
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| 46 | </div> |
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| 50 | <td align="right"><small>Copyright © 2002-2004 Douglas Gregor</small></td> |
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