| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> |
| <title>Polymorphic Function Object</title> |
| <link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> |
| <link rel="home" href="../../../index.html" title="Chapter 1. Fusion 2.0"> |
| <link rel="up" href="../concepts.html" title="Concepts"> |
| <link rel="prev" href="def_callable.html" title="Deferred Callable Object"> |
| <link rel="next" href="../invocation.html" title="Invocation"> |
| </head> |
| <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> |
| <table cellpadding="2" width="100%"><tr> |
| <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> |
| <td align="center"><a href="../../../../../../../index.html">Home</a></td> |
| <td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> |
| <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> |
| <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> |
| <td align="center"><a href="../../../../../../../more/index.htm">More</a></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="def_callable.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="../invocation.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="fusion.functional.concepts.poly"></a><a class="link" href="poly.html" title="Polymorphic Function Object">Polymorphic Function |
| Object</a> |
| </h4></div></div></div> |
| <a name="fusion.functional.concepts.poly.description"></a><h6> |
| <a name="id1075307"></a> |
| <a class="link" href="poly.html#fusion.functional.concepts.poly.description">Description</a> |
| </h6> |
| <p> |
| A non-member-pointer <a class="link" href="def_callable.html" title="Deferred Callable Object">Deferred |
| Callable Object</a> type. |
| </p> |
| <a name="fusion.functional.concepts.poly.refinement_of"></a><h6> |
| <a name="id1075329"></a> |
| <a class="link" href="poly.html#fusion.functional.concepts.poly.refinement_of">Refinement |
| of</a> |
| </h6> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <a class="link" href="reg_callable.html" title="Regular Callable Object">Regular Callable |
| Object</a> |
| </li> |
| <li class="listitem"> |
| <a class="link" href="def_callable.html" title="Deferred Callable Object">Deferred Callable |
| Object</a> |
| </li> |
| </ul></div> |
| <div class="variablelist"> |
| <p class="title"><b>Notation</b></p> |
| <dl> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt> |
| <dd><p> |
| A possibly const-qualified Polymorphic Function Object type |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">f</span></code></span></dt> |
| <dd><p> |
| An object or reference to an object of type F |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span> <span class="special">...</span><span class="identifier">AN</span></code></span></dt> |
| <dd><p> |
| Argument types |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span> <span class="special">...</span><span class="identifier">aN</span></code></span></dt> |
| <dd><p> |
| Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span> |
| <span class="special">...</span><span class="identifier">AN</span></code> |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span></code></span></dt> |
| <dd><p> |
| <code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i <code class="computeroutput"><span class="special">&</span></code> |
| if <code class="computeroutput"><span class="identifier">a</span></code>i is an LValue, |
| same as <code class="computeroutput"><span class="identifier">A</span></code>i, otherwise |
| </p></dd> |
| </dl> |
| </div> |
| <a name="fusion.functional.concepts.poly.expression_requirements"></a><h6> |
| <a name="id1075551"></a> |
| <a class="link" href="poly.html#fusion.functional.concepts.poly.expression_requirements">Expression |
| requirements</a> |
| </h6> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Expression |
| </p> |
| </th> |
| <th> |
| <p> |
| Return Type |
| </p> |
| </th> |
| <th> |
| <p> |
| Runtime Complexity |
| </p> |
| </th> |
| </tr></thead> |
| <tbody><tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">a1</span><span class="special">,</span> |
| <span class="special">...</span><span class="identifier">aN</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">result_of</span><span class="special"><</span> |
| <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span><span class="special">,</span> |
| <span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">>::</span><span class="identifier">type</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Unspecified |
| </p> |
| </td> |
| </tr></tbody> |
| </table></div> |
| <a name="fusion.functional.concepts.poly.models"></a><h6> |
| <a name="id1075709"></a> |
| <a class="link" href="poly.html#fusion.functional.concepts.poly.models">Models</a> |
| </h6> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| function pointers |
| </li> |
| <li class="listitem"> |
| function objects of the Standard Library |
| </li> |
| <li class="listitem"> |
| all Fusion <a class="link" href="../adapters.html" title="Adapters">functional adapters</a> |
| </li> |
| </ul></div> |
| <a name="fusion.functional.concepts.poly.examples"></a><h6> |
| <a name="id1075752"></a> |
| <a class="link" href="poly.html#fusion.functional.concepts.poly.examples">Examples</a> |
| </h6> |
| <pre class="programlisting"><span class="special">&</span> <span class="identifier">a_free_function</span> |
| <span class="special">&</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_static_member_function</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>()</span> |
| <span class="comment">// using namespace boost; |
| </span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>(),</span> <span class="identifier">_1</span><span class="special">,</span> <span class="number">5</span><span class="special">)</span> |
| <span class="comment">// Note: Boost.Lambda expressions don't work with __boost_result_of__ |
| </span><span class="identifier">fusion</span><span class="special">::</span><a class="link" href="../generation/functions/mk_fused_fobj.html" title="make_fused_function_object"><code class="computeroutput"><span class="identifier">make_fused_function_object</span></code></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>())</span> |
| </pre> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias |
| Schwinger<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt 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> |
| </div></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="def_callable.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="../invocation.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| </body> |
| </html> |
