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- Added documentation for function_traits class template


[SVN r14672]
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Douglas Gregor
2002-08-05 02:00:26 +00:00
parent 9788a1455d
commit ac4289bd6c
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@@ -32,6 +32,7 @@ first. </p>
<a href="#relationships">Relationships Between Types</a>
<a href="#transformations">Transformations Between Types</a>
<a href="#synthesized">Synthesizing Types</a>
<a href="#function_traits">Function Traits</a>
<a href="#compiler">Compiler Support Information</a>
<a href="#headers">Type traits headers</a>
<a href="#example">Example Code</a></pre>
@@ -812,6 +813,53 @@ properties. </p>
</tr>
</table>
<h2><a name="function_traits"></a>Function Traits</h2>
<p> The <code>::boost::function_traits</code> class template extracts information from function types.
<table border="0" cellpadding="7" cellspacing="1" width="100%">
<tr>
<td valign="top" width="5%">&nbsp;</td>
<td valign="top" width="23%" bgcolor="#008080"><p
align="center">Expression</p>
</td>
<td valign="top" width="28%" bgcolor="#008080"><p
align="center">Description</p>
</td>
<td valign="top" width="13%" bgcolor="#008080"><p
align="center">Reference</p>
</td>
<td valign="top" width="25%" bgcolor="#008080"><p
align="center">Compiler requirements</p>
</td>
<td valign="top" width="5%">&nbsp;</td>
</tr>
<tr>
<td valign="top" width="5%">&nbsp;</td>
<td valign="top" width="23%" bgcolor="#C0C0C0"><code>::boost::function_traits&lt;F&gt;::arity</code></td>
<td valign="top" width="28%" bgcolor="#C0C0C0">Determine the arity of the function type <code>F</code>. </td>
<td valign="top" width="13%" bgcolor="#C0C0C0">&nbsp;</td>
<td width="25%" bgcolor="#C0C0C0">P</td>
<td valign="top" width="5%">&nbsp;</td>
</tr>
<tr>
<td valign="top" width="5%">&nbsp;</td>
<td valign="top" width="23%" bgcolor="#C0C0C0"><code>::boost::function_traits&lt;F&gt;::result_type</code></td>
<td valign="top" width="28%" bgcolor="#C0C0C0">The type returned by function type <code>F</code>. </td>
<td valign="top" width="13%" bgcolor="#C0C0C0">&nbsp;</td>
<td width="25%" bgcolor="#C0C0C0">P</td>
<td valign="top" width="5%">&nbsp;</td>
</tr>
<tr>
<td valign="top" width="5%">&nbsp;</td>
<td valign="top" width="23%" bgcolor="#C0C0C0"><code>::boost::function_traits&lt;F&gt;::arg<em>N</em>_type</code></td>
<td valign="top" width="28%" bgcolor="#C0C0C0">The <code><em>N</em></code>th argument type of function type <code>F</code>, where <code>1&lt;=<em>N</em>&lt;=</code>arity of <code>F</code>.</td>
<td valign="top" width="13%" bgcolor="#C0C0C0">&nbsp;</td>
<td width="25%" bgcolor="#C0C0C0">P</td>
<td valign="top" width="5%">&nbsp;</td>
</tr>
</table>
<h2><a name="compiler"></a>Compiler Support Information</h2>
<p>The legends used in the tables above have the following