<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Spirit Classic</title> <link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.0"> <link rel="home" href="../../index.html" title="Spirit 2.4"> <link rel="up" href="../what_s_new.html" title="What's New"> <link rel="prev" href="spirit_2_1.html" title="Spirit V2.1"> <link rel="next" href="../introduction.html" title="Introduction"> </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="spirit_2_1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../what_s_new.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="../introduction.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h3 class="title"> <a name="spirit.what_s_new.spirit_1_x"></a><a class="link" href="spirit_1_x.html" title="Spirit Classic"> Spirit Classic</a> </h3></div></div></div> <p> The Spirit V1.8.x code base has been integrated with Spirit V2. It is now called <a href="../../../../../../libs/spirit/classic/index.html" target="_top"><span class="emphasis"><em>Spirit.Classic</em></span></a>. Since the directory structure has changed (the Spirit Classic headers are now moved to the $BOOST_ROOT/boost/spirit/home/classic directory), we created forwarding headers allowing existing applications to compile without any change. However, these forwarding headers are deprecated, which will result in corresponding warnings generated for each of the headers starting with Boost V1.38. The forwarding headers are expected to be removed in the future. </p> <p> The recommended way of using Spirit Classic now is to include header files from the directory $BOOST_ROOT/boost/spirit/include. All Spirit Classic headers in this directory have 'classic_' prefixed to their name. For example the include </p> <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">core</span><span class="special">/</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> <p> now should be written as: </p> <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">classic_core</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> <p> To avoid namespace conflicts with the new Spirit V2 library we moved Spirit Classic into the namespace <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">classic</span></code>. All references to the former namespace <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span></code> need to be adjusted as soon as the header names are corrected as described above. As an alternative you can define the preprocessor constant <code class="computeroutput"><span class="identifier">BOOST_SPIRIT_USE_OLD_NAMESPACE</span></code>, which will force the Spirit Classic code to be in the namespace <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span></code> as before. This is not recommended, though, as it may result in naming clashes. </p> <p> The change of the namespace will be automatically deactivated whenever the deprecated include files are being used. This ensures full backwards compatibility for existing applications. </p> </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 © 2001-2010 Joel de Guzman, Hartmut Kaiser<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="spirit_2_1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../what_s_new.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="../introduction.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>