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diff --git a/libs/phoenix/doc/html/phoenix/modules/function/adapting_functions.html b/libs/phoenix/doc/html/phoenix/modules/function/adapting_functions.html new file mode 100644 index 0000000000..1263a0afb6 --- /dev/null +++ b/libs/phoenix/doc/html/phoenix/modules/function/adapting_functions.html @@ -0,0 +1,370 @@ +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> +<title>Adapting Functions</title> +<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> +<meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> +<link rel="home" href="../../../index.html" title="Chapter 1. Phoenix 3.0"> +<link rel="up" href="../function.html" title="Function"> +<link rel="prev" href="../function.html" title="Function"> +<link rel="next" href="../operator.html" title="Operator"> +</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="../function.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../function.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="../operator.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="phoenix.modules.function.adapting_functions"></a><a class="link" href="adapting_functions.html" title="Adapting Functions">Adapting + Functions</a> +</h4></div></div></div> +<div class="toc"><dl> +<dt><span class="section"><a href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary">BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY</a></span></dt> +<dt><span class="section"><a href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function">BOOST_PHOENIX_ADAPT_FUNCTION</a></span></dt> +<dt><span class="section"><a href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary">BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY</a></span></dt> +<dt><span class="section"><a href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable">BOOST_PHOENIX_ADAPT_CALLABLE</a></span></dt> +</dl></div> +<p> + If you want to adapt already existing functions or function objects it + will become a repetetive task. Therefor the following boilerplate macros + are provided to help you adapt already exsiting functions, thus reducing + the need to <a class="link" href="../bind.html" title="Bind">phoenix.modules.bind</a> + functions. + </p> +<div class="section"> +<div class="titlepage"><div><div><h5 class="title"> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary"></a><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary" title="BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY">BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY</a> +</h5></div></div></div> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.h0"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.description"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.description">Description</a> + </h6> +<p> + <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY</span></code> + is a macro that can be used to generate all the necessary boilerplate + to make an arbitrary nullary function a lazy function. + </p> +<div class="note"><table border="0" summary="Note"> +<tr> +<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td> +<th align="left">Note</th> +</tr> +<tr><td align="left" valign="top"><p> + These macros generate no global objects. The resulting lazy functions + are real functions that create the lazy function expression object + </p></td></tr> +</table></div> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.h1"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.synopsis"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.synopsis">Synopsis</a> + </h6> +<pre class="programlisting"><span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY</span><span class="special">(</span> + <span class="identifier">RETURN_TYPE</span> + <span class="special">,</span> <span class="identifier">LAZY_FUNCTION</span> + <span class="special">,</span> <span class="identifier">FUNCTION</span> +<span class="special">)</span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.h2"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.semantics"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.semantics">Semantics</a> + </h6> +<p> + The above macro generates all necessary code to have a nullary lazy function + <code class="computeroutput"><span class="identifier">LAZY_FUNCTION</span></code> which calls + the nullary <code class="computeroutput"><span class="identifier">FUNCTION</span></code> + that has the return type <code class="computeroutput"><span class="identifier">RETURN_TYPE</span></code> + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.h3"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.header"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.header">Header</a> + </h6> +<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">function</span><span class="special">/</span><span class="identifier">adapt_function</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.h4"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.example"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function_nullary.example">Example</a> + </h6> +<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> +<span class="special">{</span> + <span class="keyword">int</span> <span class="identifier">foo</span><span class="special">()</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="number">42</span><span class="special">;</span> + <span class="special">}</span> +<span class="special">}</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION_NULLARY</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">foo</span><span class="special">)</span> + +<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> +<span class="special">{</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">placeholders</span><span class="special">::</span><span class="identifier">_1</span><span class="special">;</span> + + <span class="identifier">assert</span><span class="special">((</span><span class="identifier">_1</span> <span class="special">+</span> <span class="identifier">foo</span><span class="special">())(</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="number">43</span><span class="special">);</span> +<span class="special">}</span> +</pre> +</div> +<div class="section"> +<div class="titlepage"><div><div><h5 class="title"> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function"></a><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function" title="BOOST_PHOENIX_ADAPT_FUNCTION">BOOST_PHOENIX_ADAPT_FUNCTION</a> +</h5></div></div></div> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h0"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.description"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.description">Description</a> + </h6> +<p> + <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION</span></code> + is a macro that can be used to generate all the necessary boilerplate + to make an arbitrary function a lazy function. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h1"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.synopsis"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.synopsis">Synopsis</a> + </h6> +<pre class="programlisting"><span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION</span><span class="special">(</span> + <span class="identifier">RETURN_TYPE</span> + <span class="special">,</span> <span class="identifier">LAZY_FUNCTION</span> + <span class="special">,</span> <span class="identifier">FUNCTION</span> + <span class="special">,</span> <span class="identifier">FUNCTION_ARITY</span> +<span class="special">)</span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h2"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.semantics"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.semantics">Semantics</a> + </h6> +<p> + The above macro generates all necessary code to have a lazy function + <code class="computeroutput"><span class="identifier">LAZY_FUNCTION</span></code> which calls + <code class="computeroutput"><span class="identifier">FUNCTION</span></code> that has the + return type <code class="computeroutput"><span class="identifier">RETURN_TYPE</span></code> + with <code class="computeroutput"><span class="identifier">FUNCTION_ARITY</span></code> number + of arguments. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h3"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.header"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.header">Header</a> + </h6> +<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">function</span><span class="special">/</span><span class="identifier">adapt_function</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h4"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.example"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.example">Example</a> + </h6> +<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> +<span class="special">{</span> + <span class="keyword">int</span> <span class="identifier">plus</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">int</span> <span class="identifier">b</span><span class="special">)</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="identifier">a</span> <span class="special">+</span> <span class="identifier">b</span><span class="special">;</span> + <span class="special">}</span> + + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span> + <span class="identifier">T</span> + <span class="identifier">plus</span><span class="special">(</span><span class="identifier">T</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span> <span class="identifier">b</span><span class="special">,</span> <span class="identifier">T</span> <span class="identifier">c</span><span class="special">)</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="identifier">a</span> <span class="special">+</span> <span class="identifier">b</span> <span class="special">+</span> <span class="identifier">c</span><span class="special">;</span> + <span class="special">}</span> +<span class="special">}</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">plus</span><span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">plus</span><span class="special">,</span> <span class="number">2</span><span class="special">)</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_FUNCTION</span><span class="special">(</span> + <span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special"><</span><span class="identifier">A0</span><span class="special">>::</span><span class="identifier">type</span> + <span class="special">,</span> <span class="identifier">plus</span> + <span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">plus</span> + <span class="special">,</span> <span class="number">3</span> +<span class="special">)</span> + +<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> +<span class="special">{</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">arg_names</span><span class="special">::</span><span class="identifier">arg1</span><span class="special">;</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">arg_names</span><span class="special">::</span><span class="identifier">arg2</span><span class="special">;</span> + + <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">123</span><span class="special">;</span> + <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">256</span><span class="special">;</span> + + <span class="identifier">assert</span><span class="special">(</span><span class="identifier">plus</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">)(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">a</span><span class="special">+</span><span class="identifier">b</span><span class="special">);</span> + <span class="identifier">assert</span><span class="special">(</span><span class="identifier">plus</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">,</span> <span class="number">3</span><span class="special">)(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">a</span><span class="special">+</span><span class="identifier">b</span><span class="special">+</span><span class="number">3</span><span class="special">);</span> +<span class="special">}</span> +</pre> +</div> +<div class="section"> +<div class="titlepage"><div><div><h5 class="title"> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary"></a><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary" title="BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY">BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY</a> +</h5></div></div></div> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.h0"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.description"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.description">Description</a> + </h6> +<p> + <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY</span></code> + is a macro that can be used to generate all the necessary boilerplate + to make an arbitrary nullary function object a lazy function. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.h1"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.synopsis"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.synopsis">Synopsis</a> + </h6> +<pre class="programlisting"><span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY</span><span class="special">(</span> + <span class="identifier">LAZY_FUNCTION</span> + <span class="special">,</span> <span class="identifier">CALLABLE</span> +<span class="special">)</span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.h2"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.semantics"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.semantics">Semantics</a> + </h6> +<p> + The above macro generates all necessary code to create <code class="computeroutput"><span class="identifier">LAZY_FUNCTION</span></code> which creates a lazy + function object that represents a nullary call to <code class="computeroutput"><span class="identifier">CALLABLE</span></code>. + The return type is specified by <code class="computeroutput"><span class="identifier">CALLABLE</span></code> + conforming to the <a href="http://www.boost.org/doc/libs/release/libs/utility/utility.htm#result_of" target="_top">Boost.Result + Of</a> protocol. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.h3"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.header"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.header">Header</a> + </h6> +<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">function</span><span class="special">/</span><span class="identifier">adapt_callable</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.h4"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.example"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable_nullary.example">Example</a> + </h6> +<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> +<span class="special">{</span> + <span class="keyword">struct</span> <span class="identifier">foo</span> + <span class="special">{</span> + <span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">result_type</span><span class="special">;</span> + + <span class="identifier">result_type</span> <span class="keyword">operator</span><span class="special">()()</span> <span class="keyword">const</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="number">42</span><span class="special">;</span> + <span class="special">}</span> + <span class="special">}</span> +<span class="special">}</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE_NULLARY</span><span class="special">(</span><span class="identifier">foo</span><span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">foo</span><span class="special">)</span> + +<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> +<span class="special">{</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">placeholders</span><span class="special">::</span><span class="identifier">_1</span><span class="special">;</span> + + <span class="identifier">assert</span><span class="special">((</span><span class="identifier">_1</span> <span class="special">+</span> <span class="identifier">foo</span><span class="special">())(</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="number">43</span><span class="special">);</span> +<span class="special">}</span> +</pre> +</div> +<div class="section"> +<div class="titlepage"><div><div><h5 class="title"> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable"></a><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable" title="BOOST_PHOENIX_ADAPT_CALLABLE">BOOST_PHOENIX_ADAPT_CALLABLE</a> +</h5></div></div></div> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.h0"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.description"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.description">Description</a> + </h6> +<p> + <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE</span></code> + is a macro that can be used to generate all the necessary boilerplate + to make an arbitrary function object a lazy function. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.h1"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.synopsis"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.synopsis">Synopsis</a> + </h6> +<pre class="programlisting"><span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE</span><span class="special">(</span> + <span class="identifier">LAZY_FUNCTION</span> + <span class="special">,</span> <span class="identifier">FUNCTION_NAME</span> + <span class="special">,</span> <span class="identifier">FUNCTION_ARITY</span> +<span class="special">)</span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.h2"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.semantics"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.semantics">Semantics</a> + </h6> +<p> + The above macro generates all necessary code to create <code class="computeroutput"><span class="identifier">LAZY_FUNCTION</span></code> which creates a lazy + function object that represents a call to <code class="computeroutput"><span class="identifier">CALLABLE</span></code> + with <code class="computeroutput"><span class="identifier">FUNCTION_ARITY</span></code> arguments. + The return type is specified by <code class="computeroutput"><span class="identifier">CALLABLE</span></code> + conforming to the <a href="http://www.boost.org/doc/libs/release/libs/utility/utility.htm#result_of" target="_top">Boost.Result + Of</a> protocol. + </p> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.h3"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.header"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.header">Header</a> + </h6> +<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">function</span><span class="special">/</span><span class="identifier">adapt_callable</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +</pre> +<h6> +<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.h4"></a> + <span><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.example"></a></span><a class="link" href="adapting_functions.html#phoenix.modules.function.adapting_functions.boost_phoenix_adapt_callable.example">Example</a> + </h6> +<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> +<span class="special">{</span> + <span class="keyword">struct</span> <span class="identifier">plus</span> + <span class="special">{</span> + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">></span> + <span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span> + + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">This</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A1</span><span class="special">></span> + <span class="keyword">struct</span> <span class="identifier">result</span><span class="special"><</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">A0</span><span class="special">,</span> <span class="identifier">A1</span><span class="special">)></span> + <span class="special">:</span> <span class="identifier">remove_reference</span><span class="special"><</span><span class="identifier">A0</span><span class="special">></span> + <span class="special">{};</span> + + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">This</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A2</span><span class="special">></span> + <span class="keyword">struct</span> <span class="identifier">result</span><span class="special"><</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">A0</span><span class="special">,</span> <span class="identifier">A1</span><span class="special">,</span> <span class="identifier">A2</span><span class="special">)></span> + <span class="special">:</span> <span class="identifier">remove_reference</span><span class="special"><</span><span class="identifier">A0</span><span class="special">></span> + <span class="special">{};</span> + + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A1</span><span class="special">></span> + <span class="identifier">A0</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">A0</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">a0</span><span class="special">,</span> <span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">a1</span><span class="special">)</span> <span class="keyword">const</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="identifier">a0</span> <span class="special">+</span> <span class="identifier">a1</span><span class="special">;</span> + <span class="special">}</span> + + <span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">A2</span><span class="special">></span> + <span class="identifier">A0</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">A0</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">a0</span><span class="special">,</span> <span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">a1</span><span class="special">,</span> <span class="identifier">A2</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">a2</span><span class="special">)</span> <span class="keyword">const</span> + <span class="special">{</span> + <span class="keyword">return</span> <span class="identifier">a0</span> <span class="special">+</span> <span class="identifier">a1</span> <span class="special">+</span> <span class="identifier">a2</span><span class="special">;</span> + <span class="special">}</span> + <span class="special">};</span> +<span class="special">}</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE</span><span class="special">(</span><span class="identifier">plus</span><span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">plus</span><span class="special">,</span> <span class="number">2</span><span class="special">)</span> + +<span class="identifier">BOOST_PHOENIX_ADAPT_CALLABLE</span><span class="special">(</span><span class="identifier">plus</span><span class="special">,</span> <span class="identifier">demo</span><span class="special">::</span><span class="identifier">plus</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span> + +<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> +<span class="special">{</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">arg_names</span><span class="special">::</span><span class="identifier">arg1</span><span class="special">;</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">arg_names</span><span class="special">::</span><span class="identifier">arg2</span><span class="special">;</span> + + <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">123</span><span class="special">;</span> + <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">256</span><span class="special">;</span> + + <span class="identifier">assert</span><span class="special">(</span><span class="identifier">plus</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">)(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">a</span><span class="special">+</span><span class="identifier">b</span><span class="special">);</span> + <span class="identifier">assert</span><span class="special">(</span><span class="identifier">plus</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">,</span> <span class="number">3</span><span class="special">)(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">a</span><span class="special">+</span><span class="identifier">b</span><span class="special">+</span><span class="number">3</span><span class="special">);</span> +<span class="special">}</span> +</pre> +</div> +</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 © 2002-2005, 2010 Joel de Guzman, Dan Marsden, Thomas Heller<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="../function.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../function.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="../operator.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> +</div> +</body> +</html> |