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   <title>Common headers</title><link rel="stylesheet" href="boostbook.css" type="text/css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.75.2"><link rel="home" href="index.html" title="Meta State Machine (MSM) V2.12"><link rel="up" href="pt02.html" title="Part&nbsp;II.&nbsp;Reference"><link rel="prev" href="ch10.html" title="Chapter&nbsp;10.&nbsp; Functional programming"><link rel="next" href="re02.html" title="Back-end"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Common headers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch10.html">Prev</a>&nbsp;</td><th width="60%" align="center">Part&nbsp;II.&nbsp;Reference</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="re02.html">Next</a></td></tr></table><hr></div><div class="refentry" title="Common headers"><a name="d0e4524"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>Common headers &#8212; The common types used by front- and back-ends</p></div><div class="refsect1" title="msm/common.hpp"><a name="d0e4530"></a><h2>msm/common.hpp</h2><p>This header provides one type, wrap, which is an empty type whose only reason
                    to exist is to be cheap to construct, so that it can be used with mpl::for_each,
                    as shown in the Metaprogramming book, chapter 9.</p><pre class="classsynopsis"> <span class="ooclass"><span class="classname">template &lt;class Dummy&gt; wrap{};</span></span>&nbsp;{<br>}</pre></div><div class="refsect1" title="msm/row_tags.hpp"><a name="d0e4539"></a><h2>msm/row_tags.hpp</h2><p>This header contains the row type tags which front-ends can support partially
                    or totally. Please see the <span class="command"><strong><a class="command" href="ch06s02.html#internals-front-back-interface">Internals</a></strong></span> section for a description of the different
                    types.</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch10.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="pt02.html">Up</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="re02.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter&nbsp;10.&nbsp;
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