188 lines
13 KiB
HTML
188 lines
13 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.11"/>
|
|
<title>libsigc++: compose()</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
<link href="doxygen-extra.css" rel="stylesheet" type="text/css"/>
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td id="projectalign" style="padding-left: 0.5em;">
|
|
<div id="projectname">libsigc++
|
|
 <span id="projectnumber">2.10.3</span>
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.11 -->
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="pages.html"><span>Related Pages</span></a></li>
|
|
<li class="current"><a href="modules.html"><span>Modules</span></a></li>
|
|
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
|
|
<li><a href="annotated.html"><span>Classes</span></a></li>
|
|
</ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="summary">
|
|
<a href="#nested-classes">Classes</a> |
|
|
<a href="#func-members">Functions</a> </div>
|
|
<div class="headertitle">
|
|
<div class="title">compose()<div class="ingroups"><a class="el" href="group__adaptors.html">Adaptors</a></div></div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
|
|
<p><a class="el" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a" title="Creates an adaptor of type sigc::compose1_functor which combines two functors. ">sigc::compose()</a> combines two or three arbitrary functors.
|
|
<a href="#details">More...</a></p>
|
|
<table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
|
|
Classes</h2></td></tr>
|
|
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1compose1__functor.html">sigc::compose1_functor< T_setter, T_getter ></a></td></tr>
|
|
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Adaptor that combines two functors. <a href="structsigc_1_1compose1__functor.html#details">More...</a><br /></td></tr>
|
|
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1compose2__functor.html">sigc::compose2_functor< T_setter, T_getter1, T_getter2 ></a></td></tr>
|
|
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Adaptor that combines three functors. <a href="structsigc_1_1compose2__functor.html#details">More...</a><br /></td></tr>
|
|
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table><table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
|
|
Functions</h2></td></tr>
|
|
<tr class="memitem:ga34cf5da8f6323bfdc41bc7113d6ad20a"><td class="memTemplParams" colspan="2">template<class T_setter , class T_getter > </td></tr>
|
|
<tr class="memitem:ga34cf5da8f6323bfdc41bc7113d6ad20a"><td class="memTemplItemLeft" align="right" valign="top">compose1_functor< T_setter, T_getter > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a">sigc::compose</a> (const T_setter& _A_setter, const T_getter& _A_getter)</td></tr>
|
|
<tr class="memdesc:ga34cf5da8f6323bfdc41bc7113d6ad20a"><td class="mdescLeft"> </td><td class="mdescRight">Creates an adaptor of type <a class="el" href="structsigc_1_1compose1__functor.html" title="Adaptor that combines two functors. ">sigc::compose1_functor</a> which combines two functors. <a href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a">More...</a><br /></td></tr>
|
|
<tr class="separator:ga34cf5da8f6323bfdc41bc7113d6ad20a"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ga4abf2a45eb2307a3dc5d870c86b0450d"><td class="memTemplParams" colspan="2">template<class T_setter , class T_getter1 , class T_getter2 > </td></tr>
|
|
<tr class="memitem:ga4abf2a45eb2307a3dc5d870c86b0450d"><td class="memTemplItemLeft" align="right" valign="top">compose2_functor< T_setter, T_getter1, T_getter2 > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group__compose.html#ga4abf2a45eb2307a3dc5d870c86b0450d">sigc::compose</a> (const T_setter& _A_setter, const T_getter1& _A_getter1, const T_getter2& _A_getter2)</td></tr>
|
|
<tr class="memdesc:ga4abf2a45eb2307a3dc5d870c86b0450d"><td class="mdescLeft"> </td><td class="mdescRight">Creates an adaptor of type <a class="el" href="structsigc_1_1compose2__functor.html" title="Adaptor that combines three functors. ">sigc::compose2_functor</a> which combines three functors. <a href="group__compose.html#ga4abf2a45eb2307a3dc5d870c86b0450d">More...</a><br /></td></tr>
|
|
<tr class="separator:ga4abf2a45eb2307a3dc5d870c86b0450d"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table>
|
|
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
|
|
<p><a class="el" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a" title="Creates an adaptor of type sigc::compose1_functor which combines two functors. ">sigc::compose()</a> combines two or three arbitrary functors. </p>
|
|
<p>On invokation, parameters are passed on to one or two getter functor(s). The return value(s) are then passed on to the setter function.</p>
|
|
<dl class="section user"><dt>Examples:</dt><dd><div class="fragment"><div class="line"><span class="keywordtype">float</span> square_root(<span class="keywordtype">float</span> a) { <span class="keywordflow">return</span> sqrtf(a); }</div><div class="line"><span class="keywordtype">float</span> <a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01484.html#gabf296b8981ebb3c123b3ba99e753598f">sum</a>(<span class="keywordtype">float</span> a, <span class="keywordtype">float</span> b) { <span class="keywordflow">return</span> a+b; }</div><div class="line"><a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01544.html#aaf93fdf0812752e0e02c501dea1b38f0">std::cout</a> << <a class="code" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a">sigc::compose</a>(&square_root, &<a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01484.html#gabf296b8981ebb3c123b3ba99e753598f">sum</a>)(9, 16); <span class="comment">// calls square_root(sum(3,6))</span></div><div class="line"><a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01544.html#aaf93fdf0812752e0e02c501dea1b38f0">std::cout</a> << <a class="code" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a">sigc::compose</a>(&<a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01484.html#gabf296b8981ebb3c123b3ba99e753598f">sum</a>, &square_root, &square_root)(9); <span class="comment">// calls sum(square_root(9), square_root(9))</span></div></div><!-- fragment --></dd></dl>
|
|
<p>The functor <a class="el" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a" title="Creates an adaptor of type sigc::compose1_functor which combines two functors. ">sigc::compose()</a> returns can be passed directly into <a class="el" href="classsigc_1_1signal7.html#adc55ac9b0f935fd87a67904022e03cb2" title="Add a slot to the list of slots. ">sigc::signal::connect()</a>.</p>
|
|
<dl class="section user"><dt>Example:</dt><dd><div class="fragment"><div class="line"><a class="code" href="classsigc_1_1signal.html">sigc::signal<float,float,float></a> some_signal;</div><div class="line">some_signal.<a class="code" href="classsigc_1_1signal7.html#adc55ac9b0f935fd87a67904022e03cb2">connect</a>(<a class="code" href="group__compose.html#ga34cf5da8f6323bfdc41bc7113d6ad20a">sigc::compose</a>(&square_root, &<a class="codeRef" doxygen="libstdc++.tag:http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01484.html#gabf296b8981ebb3c123b3ba99e753598f">sum</a>));</div></div><!-- fragment --> </dd></dl>
|
|
<h2 class="groupheader">Function Documentation</h2>
|
|
<a class="anchor" id="ga34cf5da8f6323bfdc41bc7113d6ad20a"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template <class T_setter , class T_getter > </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">compose1_functor<T_setter, T_getter> sigc::compose </td>
|
|
<td>(</td>
|
|
<td class="paramtype">const T_setter & </td>
|
|
<td class="paramname"><em>_A_setter</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">const T_getter & </td>
|
|
<td class="paramname"><em>_A_getter</em> </td>
|
|
</tr>
|
|
<tr>
|
|
<td></td>
|
|
<td>)</td>
|
|
<td></td><td></td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p>Creates an adaptor of type <a class="el" href="structsigc_1_1compose1__functor.html" title="Adaptor that combines two functors. ">sigc::compose1_functor</a> which combines two functors. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">_A_setter</td><td>Functor that receives the return value of the invokation of <em>_A_getter</em>. </td></tr>
|
|
<tr><td class="paramname">_A_getter</td><td>Functor to invoke from operator()(). </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
<dl class="section return"><dt>Returns</dt><dd>Adaptor that executes <em>_A_setter</em> with the value returned from invokation of <em>_A_getter</em>. </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="ga4abf2a45eb2307a3dc5d870c86b0450d"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<div class="memtemplate">
|
|
template <class T_setter , class T_getter1 , class T_getter2 > </div>
|
|
<table class="mlabels">
|
|
<tr>
|
|
<td class="mlabels-left">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">compose2_functor<T_setter, T_getter1, T_getter2> sigc::compose </td>
|
|
<td>(</td>
|
|
<td class="paramtype">const T_setter & </td>
|
|
<td class="paramname"><em>_A_setter</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">const T_getter1 & </td>
|
|
<td class="paramname"><em>_A_getter1</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">const T_getter2 & </td>
|
|
<td class="paramname"><em>_A_getter2</em> </td>
|
|
</tr>
|
|
<tr>
|
|
<td></td>
|
|
<td>)</td>
|
|
<td></td><td></td>
|
|
</tr>
|
|
</table>
|
|
</td>
|
|
<td class="mlabels-right">
|
|
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
|
|
<p>Creates an adaptor of type <a class="el" href="structsigc_1_1compose2__functor.html" title="Adaptor that combines three functors. ">sigc::compose2_functor</a> which combines three functors. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">_A_setter</td><td>Functor that receives the return values of the invokation of <em>_A_getter1</em> and <em>_A_getter2</em>. </td></tr>
|
|
<tr><td class="paramname">_A_getter1</td><td>Functor to invoke from operator()(). </td></tr>
|
|
<tr><td class="paramname">_A_getter2</td><td>Functor to invoke from operator()(). </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
<dl class="section return"><dt>Returns</dt><dd>Adaptor that executes <em>_A_setter</em> with the values return from invokation of <em>_A_getter1</em> and <em>_A_getter2</em>. </dd></dl>
|
|
|
|
</div>
|
|
</div>
|
|
</div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated on Wed Mar 25 2020 10:13:27 for libsigc++ by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.11
|
|
</small></address>
|
|
</body>
|
|
</html>
|