123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225 |
- <?xml version="1.0" encoding="utf-8" ?>
- <!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" xml:lang="en" lang="en">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" />
- <title>The MPL Reference Manual: bind</title>
- <link rel="stylesheet" href="../style.css" type="text/css" />
- </head>
- <body class="docframe refmanual">
- <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./lambda.html" class="navigation-link">Prev</a> <a href="./quote.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./lambda.html" class="navigation-link">Back</a> <a href="./quote.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./composition-and-argument-binding.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
- <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./metafunctions.html" class="navigation-link">Metafunctions</a> / <a href="./composition-and-argument-binding.html" class="navigation-link">Composition and Argument Binding</a> / <a href="./bind.html" class="navigation-link">bind</a></td>
- </tr></table><div class="header-separator"></div>
- <div class="section" id="bind">
- <h1><a class="toc-backref" href="./composition-and-argument-binding.html#id1531">bind</a></h1>
- <div class="section" id="id929">
- <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
- <pre class="literal-block">
- template<
- typename F
- >
- struct bind0
- {
- // <em>unspecified</em>
- // <em>...</em>
- };
- template<
- typename F, typename A1
- >
- struct bind1
- {
- // <em>unspecified</em>
- // <em>...</em>
- };
- <em>...</em>
- template<
- typename F, typename A1,<em>...</em> typename An
- >
- struct <a href="./bind.html" class="identifier">bind</a><em>n</em>
- {
- // <em>unspecified</em>
- // <em>...</em>
- };
- template<
- typename F
- , typename A1 = <em>unspecified</em>
- <em>...</em>
- , typename An = <em>unspecified</em>
- >
- struct <a href="./bind.html" class="identifier">bind</a>
- {
- // <em>unspecified</em>
- // <em>...</em>
- };
- </pre>
- </div>
- <div class="section" id="id930">
- <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
- <p><tt class="literal"><span class="pre"><a href="./bind.html" class="identifier">bind</a></span></tt> is a higher-order primitive for <a class="reference internal" href="./metafunction-class.html">Metafunction Class</a> composition
- and argument binding. In essence, it's a compile-time counterpart of
- the similar run-time functionality provided by <a class="reference external" href="http://www.boost.org/libs/bind/bind.html" target="_top">Boost.Bind</a> and <a class="reference external" href="http://www.boost.org/libs/lambda/doc/index.html" target="_top">Boost.Lambda</a>
- libraries.</p>
- </div>
- <div class="section" id="id931">
- <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
- <pre class="literal-block">
- #include <<a href="../../../../boost/mpl/bind.hpp" class="header">boost/mpl/bind.hpp</a>>
- </pre>
- </div>
- <div class="section" id="id932">
- <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
- <p><a class="reference internal" href="./metafunction-class.html">Metafunction Class</a></p>
- </div>
- <div class="section" id="id933">
- <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
- <table border="1" class="docutils table">
- <colgroup>
- <col width="15%" />
- <col width="36%" />
- <col width="48%" />
- </colgroup>
- <thead valign="bottom">
- <tr><th class="head">Parameter</th>
- <th class="head">Requirement</th>
- <th class="head">Description</th>
- </tr>
- </thead>
- <tbody valign="top">
- <tr><td><tt class="literal"><span class="pre">F</span></tt></td>
- <td><a class="reference internal" href="./metafunction-class.html">Metafunction Class</a></td>
- <td>An metafunction class to perform binding on.</td>
- </tr>
- <tr><td><tt class="literal"><span class="pre">A1</span></tt>,... <tt class="literal"><span class="pre">An</span></tt></td>
- <td>Any type</td>
- <td>Arguments to bind.</td>
- </tr>
- </tbody>
- </table>
- </div>
- <div class="section" id="id934">
- <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
- <p>For any <a class="reference internal" href="./metafunction-class.html">Metafunction Class</a> <tt class="literal"><span class="pre">f</span></tt> and arbitrary types <tt class="literal"><span class="pre">a1</span></tt>,... <tt class="literal"><span class="pre">an</span></tt>:</p>
- <pre class="literal-block">
- typedef <a href="./bind.html" class="identifier">bind</a><f,a1,...a<em>n</em>> g;
- typedef <a href="./bind.html" class="identifier">bind</a><em>n</em><f,a1,...a<em>n</em>> g;
- </pre>
- <table class="docutils field-list" frame="void" rules="none">
- <col class="field-name" />
- <col class="field-body" />
- <tbody valign="top">
- <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><a class="reference internal" href="./metafunction-class.html">Metafunction Class</a></td>
- </tr>
- </tbody>
- </table>
- <table class="docutils field-list" frame="void" id="bind-semantics" rules="none">
- <col class="field-name" />
- <col class="field-body" />
- <tbody valign="top">
- <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
- <pre class="literal-block">
- struct g
- {
- template<
- typename U1 = <em>unspecified</em>
- <em>...</em>
- , typename U<em>n</em> = <em>unspecified</em>
- >
- struct <a href="./apply.html" class="identifier">apply</a>
- : <a href="./apply-wrap.html" class="identifier">apply_wrap</a><em>n</em><
- typename h0<f,U1,<em>...</em>U<em>n</em>>::type
- , typename h1<a1,U1,<em>...</em>U<em>n</em>>::type
- <em>...</em>
- , typename h<em>n</em><a<em>n</em>,U1,<em>...</em>U<em>n</em>>::type
- >
- {
- };
- };
- </pre>
- <p>where <tt class="literal"><span class="pre">h</span></tt><em>k</em> is equivalent to</p>
- <pre class="literal-block">
- template< typename X, typename U1,<em>...</em> typename U<em>n</em> > struct h<em>k</em>
- : <a href="./apply-wrap.html" class="identifier">apply_wrap</a><em>n</em><X,U1,<em>...</em>U<em>n</em>>
- {
- };
- </pre>
- <p>if <tt class="literal"><span class="pre">f</span></tt> or <tt class="literal"><span class="pre">a</span></tt><em>k</em> is a <a class="reference internal" href="./terminology.html#bind-expression">bind expression</a> or a <a class="reference internal" href="./placeholders.html#placeholder">placeholder</a>, and</p>
- <pre class="literal-block">
- template< typename X, typename U1,<em>...</em> typename U<em>n</em> > struct h<em>k</em>
- {
- typedef X type;
- };
- </pre>
- <p class="last">otherwise. [<em>Note:</em> Every <tt class="literal"><span class="pre">n</span></tt>th appearance of the <a class="reference internal" href="./placeholders.html">unnamed placeholder</a>
- in the <tt class="literal"><span class="pre"><a href="./bind.html" class="identifier">bind</a><f,a1,...an></span></tt> specialization is replaced with the corresponding
- numbered placeholder <tt class="literal"><span class="pre">_</span></tt><em>n</em> — <em>end note</em>]</p>
- </td>
- </tr>
- </tbody>
- </table>
- </div>
- <div class="section" id="id936">
- <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
- <pre class="literal-block">
- struct f1
- {
- template< typename T1 > struct <a href="./apply.html" class="identifier">apply</a>
- {
- typedef T1 type;
- };
- };
- struct f5
- {
- template< typename T1, typename T2, typename T3, typename T4, typename T5 >
- struct <a href="./apply.html" class="identifier">apply</a>
- {
- typedef T5 type;
- };
- };
- typedef <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">1</span></tt><
- <a href="./bind.html" class="identifier">bind</a><tt class="literal"><span class="pre">1</span></tt><f1,<a href="./placeholders.html" class="identifier">_1</a>>
- , int
- >::type r11;
- typedef <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">5</span></tt><
- <a href="./bind.html" class="identifier">bind</a><tt class="literal"><span class="pre">1</span></tt><f1,<a href="./placeholders.html" class="identifier">_5</a>>
- , void,void,void,void,int
- >::type r12;
- <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same<r11,int> ));
- <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same<r12,int> ));
- typedef <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">5</span></tt><
- <a href="./bind.html" class="identifier">bind</a><tt class="literal"><span class="pre">5</span></tt><f5,<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>,<a href="./placeholders.html" class="identifier">_3</a>,<a href="./placeholders.html" class="identifier">_4</a>,<a href="./placeholders.html" class="identifier">_5</a>>
- , void,void,void,void,int
- >::type r51;
- typedef <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">5</span></tt><
- <a href="./bind.html" class="identifier">bind</a><tt class="literal"><span class="pre">5</span></tt><f5,<a href="./placeholders.html" class="identifier">_5</a>,<a href="./placeholders.html" class="identifier">_4</a>,<a href="./placeholders.html" class="identifier">_3</a>,<a href="./placeholders.html" class="identifier">_2</a>,<a href="./placeholders.html" class="identifier">_1</a>>
- , int,void,void,void,void
- >::type r52;
- <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same<r51,int> ));
- <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same<r52,int> ));
- </pre>
- </div>
- <div class="section" id="id937">
- <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
- <p><a class="reference internal" href="./composition-and-argument-binding.html">Composition and Argument Binding</a>, <a class="reference internal" href="./invocation.html">invocation</a>, <a class="reference internal" href="./placeholders.html">Placeholders</a>, <a class="reference internal" href="./lambda.html">lambda</a>, <a class="reference internal" href="./quote.html">quote</a>,
- <a class="reference internal" href="./protect.html">protect</a>, <a class="reference internal" href="./apply.html">apply</a>, <a class="reference internal" href="./apply-wrap.html">apply_wrap</a></p>
- <!-- Metafunctions/Composition and Argument Binding//quote |40 -->
- </div>
- </div>
- <div class="footer-separator"></div>
- <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./lambda.html" class="navigation-link">Prev</a> <a href="./quote.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./lambda.html" class="navigation-link">Back</a> <a href="./quote.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./composition-and-argument-binding.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
- <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body>
- </html>
|