forked from boostorg/fusion
Eric Niebler
b0a18ff5c1
https://svn.boost.org/svn/boost/trunk ........ r42194 | anthonyw | 2007-12-19 23:46:00 -0800 (Wed, 19 Dec 2007) | 1 line added missing parentheses ........ r42195 | anthonyw | 2007-12-20 00:37:02 -0800 (Thu, 20 Dec 2007) | 1 line added hardware_concurrency support for apple, freebsd and sun platforms ........ r42196 | niels_dekker | 2007-12-20 01:09:44 -0800 (Thu, 20 Dec 2007) | 1 line Removed "mark-expected-failures" from value_init_test, for both Borland and GCC, as value_init.hpp changeset [41942] provides a workaround for them. ........ r42202 | fmhess | 2007-12-20 06:39:53 -0800 (Thu, 20 Dec 2007) | 6 lines Made putting the name of a typedef inside a "classname" element successfully produce a link to the typedef's reference documentation, or to the typedef's synopsis if that is all it has. ........ r42217 | vladimir_prus | 2007-12-20 13:18:47 -0800 (Thu, 20 Dec 2007) | 1 line Explain a couple of gcc limitations with precompiled headers ........ r42220 | matias | 2007-12-20 13:56:39 -0800 (Thu, 20 Dec 2007) | 1 line add explicit std::string initialization ........ r42221 | matias | 2007-12-20 13:59:18 -0800 (Thu, 20 Dec 2007) | 1 line add license to each html page ........ r42222 | matias | 2007-12-20 14:15:11 -0800 (Thu, 20 Dec 2007) | 1 line Time out: test_bimap_property_map @ gcc-3.4.6_linux_x86_64 ........ r42223 | djowel | 2007-12-20 15:24:28 -0800 (Thu, 20 Dec 2007) | 1 line Removing fusion variant adapter ........ r42224 | djowel | 2007-12-20 15:28:26 -0800 (Thu, 20 Dec 2007) | 1 line Removing fusion variant adapter ........ r42227 | nmusatti | 2007-12-20 23:03:44 -0800 (Thu, 20 Dec 2007) | 1 line Increased the latest supported version to 5.9.3, corresponding to the December 2007 update. ........ r42228 | anthonyw | 2007-12-21 02:54:59 -0800 (Fri, 21 Dec 2007) | 1 line Updated thread ID test ........ r42229 | anthonyw | 2007-12-21 03:05:37 -0800 (Fri, 21 Dec 2007) | 1 line Markup hardware_concurrency failure as expected on tru64 platforms, as support is not implemented ........ r42234 | dgregor | 2007-12-21 13:18:17 -0800 (Fri, 21 Dec 2007) | 1 line Reduce header dependencies, from Shunsuke Sogame. Fixes #1535 ........ [SVN r42236]
277 lines
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<html>
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<title>Sequence Facade</title>
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<div class="section" lang="en">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="fusion.extension.sequence_facade"></a><a href="sequence_facade.html" title="Sequence Facade">Sequence Facade</a></h3></div></div></div>
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<a name="fusion.extension.sequence_facade.description"></a><h4>
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<a name="id650261"></a>
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<a href="sequence_facade.html#fusion.extension.sequence_facade.description">Description</a>
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</h4>
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<p>
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The <a href="sequence_facade.html" title="Sequence Facade"><tt class="computeroutput"><span class="identifier">sequence_facade</span></tt></a>
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template provides an intrusive mechanism for producing a conforming Fusion
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iterator.
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</p>
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<a name="fusion.extension.sequence_facade.synopsis"></a><h4>
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<a name="id650310"></a>
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<a href="sequence_facade.html#fusion.extension.sequence_facade.synopsis">Synopsis</a>
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</h4>
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<pre class="programlisting">
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Derived</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">TravesalTag</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">IsView</span> <span class="special">=</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">false_</span><span class="special">></span>
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<span class="keyword">struct</span> <span class="identifier">sequence_facade</span><span class="special">;</span>
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</pre>
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<a name="fusion.extension.sequence_facade.usage"></a><h4>
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<a name="id650445"></a>
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<a href="sequence_facade.html#fusion.extension.sequence_facade.usage">Usage</a>
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</h4>
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<p>
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The user of <a href="sequence_facade.html" title="Sequence Facade"><tt class="computeroutput"><span class="identifier">sequence_facade</span></tt></a> derives his sequence
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type from a specialization of <a href="sequence_facade.html" title="Sequence Facade"><tt class="computeroutput"><span class="identifier">sequence_facade</span></tt></a> and passes the derived
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sequence type as the first template parameter. The second template parameter
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should be the traversal category of the sequence being implemented. The 3rd
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parameter should be set to <tt class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>
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if the sequence is a view.
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</p>
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<p>
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The user must the implement the key expressions required by their sequence
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type.
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</p>
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<div class="table">
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<a name="id650534"></a><p class="title"><b>Table 1.91. Parameters</b></p>
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<table class="table" summary="Parameters">
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<colgroup>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<th>
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<p>
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Name
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</p>
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</th>
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<th>
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<p>
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Description
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</p>
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</th>
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</tr></thead>
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<tbody>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span></tt>, <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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</p>
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</td>
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<td>
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<p>
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A type derived from <a href="sequence_facade.html" title="Sequence Facade"><tt class="computeroutput"><span class="identifier">sequence_facade</span></tt></a>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">N</span></tt>
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</p>
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</td>
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<td>
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<p>
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An <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
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Integral Constant</a>
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</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="table">
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<a name="id650668"></a><p class="title"><b>Table 1.92. Key Expressions</b></p>
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<table class="table" summary="Key Expressions">
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<colgroup>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<th>
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<p>
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Expression
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</p>
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</th>
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<th>
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<p>
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Result
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</p>
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</th>
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</tr></thead>
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<tbody>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">begin</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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</td>
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<td>
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<p>
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The type of an iterator to the beginning of a sequence of type <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">begin</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt>
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</p>
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</td>
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<td>
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<p>
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An iterator to the beginning of sequence <tt class="computeroutput"><span class="identifier">seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">end</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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</td>
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<td>
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<p>
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The type of an iterator to the end of a sequence of type <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">end</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt>
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</p>
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</td>
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<td>
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<p>
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An iterator to the end of sequence <tt class="computeroutput"><span class="identifier">seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">size</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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</td>
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<td>
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<p>
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The size of a sequence of type <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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as an <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
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Integral Constant</a>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">size</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt>
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</p>
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</td>
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<td>
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<p>
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The size of sequence <tt class="computeroutput"><span class="identifier">seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">at</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">,</span> <span class="identifier">N</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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</td>
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<td>
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<p>
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The type of element <tt class="computeroutput"><span class="identifier">N</span></tt>
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in a sequence of type <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">at</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">,</span> <span class="identifier">N</span><span class="special">>::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">seq</span><span class="special">)</span></tt>
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</p>
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</td>
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<td>
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<p>
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Element <tt class="computeroutput"><span class="identifier">N</span></tt> in sequence
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<tt class="computeroutput"><span class="identifier">seq</span></tt>
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">sequence</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">value_at</span><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">N</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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</td>
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<td>
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<p>
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The type of the <tt class="computeroutput"><span class="identifier">N</span></tt>th
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element in a sequence of type <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<a name="fusion.extension.sequence_facade.include"></a><h4>
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<a name="id651548"></a>
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<a href="sequence_facade.html#fusion.extension.sequence_facade.include">Include</a>
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</h4>
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<pre class="programlisting">
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<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">sequence</span><span class="special">/</span><span class="identifier">sequence_facade</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">sequence_facade</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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</pre>
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<a name="fusion.extension.sequence_facade.example"></a><h4>
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<a name="id651706"></a>
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<a href="sequence_facade.html#fusion.extension.sequence_facade.example">Example</a>
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</h4>
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<p>
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A full working example using <a href="sequence_facade.html" title="Sequence Facade"><tt class="computeroutput"><span class="identifier">sequence_facade</span></tt></a> is provided in triple.cpp
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in the extension examples.
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</p>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias
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Schwinger<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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>)
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