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| 26 | <a name="BOOST_TRIBOOL_THIRD_STATE"></a><div class="titlepage"></div> |
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| 28 | <h2><span class="refentrytitle">Macro BOOST_TRIBOOL_THIRD_STATE</span></h2> |
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| 29 | <p>BOOST_TRIBOOL_THIRD_STATE — Declare a new name for the third state of a tribool. </p> |
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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">BOOST_TRIBOOL_THIRD_STATE(Name)</pre></div> |
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| 33 | <div class="refsect1" lang="en"> |
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| 34 | <a name="id2792350"></a><h2>Description</h2> |
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| 35 | <p>Use this macro to declare a new name for the third state of a tribool. This state can have any number of new names (in addition to <code class="computeroutput">indeterminate</code> ), all of which will be equivalent. The new name will be placed in the namespace in which the macro is expanded.</p> |
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| 36 | <p>Example: BOOST_TRIBOOL_THIRD_STATE(true_or_false)</p> |
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| 37 | <p>tribool x(true_or_false); // potentially set x if (true_or_false(x)) { // don't know what x is } </p> |
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