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| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="fusion.view.iterator_range"></a><a class="link" href="iterator_range.html" title="iterator_range">iterator_range</a> |
| </h3></div></div></div> |
| <a name="fusion.view.iterator_range.description"></a><h5> |
| <a name="id950690"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.description">Description</a> |
| </h5> |
| <p> |
| <code class="computeroutput"><span class="identifier">iterator_range</span></code> presents a |
| sub-range of its underlying sequence delimited by a pair of iterators. |
| </p> |
| <a name="fusion.view.iterator_range.header"></a><h5> |
| <a name="id950714"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.header">Header</a> |
| </h5> |
| <pre class="programlisting"><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">view</span><span class="special">/</span><span class="identifier">iterator_range</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <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">iterator_range</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <a name="fusion.view.iterator_range.synopsis"></a><h5> |
| <a name="id950822"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.synopsis">Synopsis</a> |
| </h5> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">First</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Last</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">iterator_range</span><span class="special">;</span> |
| </pre> |
| <a name="fusion.view.iterator_range.template_parameters"></a><h5> |
| <a name="id950887"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.template_parameters">Template parameters</a> |
| </h5> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Parameter |
| </p> |
| </th> |
| <th> |
| <p> |
| Description |
| </p> |
| </th> |
| <th> |
| <p> |
| Default |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">First</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| A fusion <a class="link" href="../iterator.html" title="Iterator">Iterator</a> |
| </p> |
| </td> |
| <td> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">Last</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| A fusion <a class="link" href="../iterator.html" title="Iterator">Iterator</a> |
| </p> |
| </td> |
| <td> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <a name="fusion.view.iterator_range.model_of"></a><h5> |
| <a name="id951009"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.model_of">Model of</a> |
| </h5> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <a class="link" href="../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward Sequence</a>, |
| <a class="link" href="../sequence/concepts/bidirectional_sequence.html" title="Bidirectional Sequence">Bidirectional |
| Sequence</a> or <a class="link" href="../sequence/concepts/random_access_sequence.html" title="Random Access Sequence">Random |
| Access Sequence</a> depending on the traversal characteristics (see |
| <a class="link" href="../sequence/concepts.html#fusion.sequence.concepts.traversal">Sequence Traversal |
| Concept</a>) of its underlying sequence. |
| </li> |
| <li class="listitem"> |
| <a class="link" href="../sequence/concepts/associative_sequence.html" title="Associative Sequence">Associative |
| Sequence</a> if <code class="computeroutput"><span class="identifier">First</span></code> |
| and <code class="computeroutput"><span class="identifier">Last</span></code> implement the |
| <a class="link" href="../iterator/concepts/associative_iterator.html" title="Associative Iterator">Associative |
| Iterator</a> model. |
| </li> |
| </ul></div> |
| <div class="variablelist"> |
| <p class="title"><b>Notation</b></p> |
| <dl> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">IR</span></code></span></dt> |
| <dd><p> |
| An <code class="computeroutput"><span class="identifier">iterator_range</span></code> type |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">f</span></code></span></dt> |
| <dd><p> |
| An instance of <code class="computeroutput"><span class="identifier">First</span></code> |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">l</span></code></span></dt> |
| <dd><p> |
| An instance of <code class="computeroutput"><span class="identifier">Last</span></code> |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">ir</span></code>, <code class="computeroutput"><span class="identifier">ir2</span></code></span></dt> |
| <dd><p> |
| Instances of <code class="computeroutput"><span class="identifier">iterator_range</span></code> |
| </p></dd> |
| </dl> |
| </div> |
| <a name="fusion.view.iterator_range.expression_semantics"></a><h5> |
| <a name="id951205"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.expression_semantics">Expression |
| Semantics</a> |
| </h5> |
| <p> |
| Semantics of an expression is defined only where it differs from, or is not |
| defined in the implemented models. |
| </p> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Expression |
| </p> |
| </th> |
| <th> |
| <p> |
| Semantics |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">IR</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span> |
| <span class="identifier">l</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Creates an <code class="computeroutput"><span class="identifier">iterator_range</span></code> |
| given iterators, <code class="computeroutput"><span class="identifier">f</span></code> |
| and <code class="computeroutput"><span class="identifier">l</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">IR</span><span class="special">(</span><span class="identifier">ir</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Copy constructs an <code class="computeroutput"><span class="identifier">iterator_range</span></code> |
| from another <code class="computeroutput"><span class="identifier">iterator_range</span></code>, |
| <code class="computeroutput"><span class="identifier">ir</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">ir</span> <span class="special">=</span> |
| <span class="identifier">ir2</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Assigns to a <code class="computeroutput"><span class="identifier">iterator_range</span></code>, |
| <code class="computeroutput"><span class="identifier">ir</span></code>, from another |
| <code class="computeroutput"><span class="identifier">iterator_range</span></code>, |
| <code class="computeroutput"><span class="identifier">ir2</span></code>. |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <a name="fusion.view.iterator_range.example"></a><h5> |
| <a name="id951443"></a> |
| <a class="link" href="iterator_range.html#fusion.view.iterator_range.example">Example</a> |
| </h5> |
| <pre class="programlisting"><span class="keyword">char</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">s</span> <span class="special">=</span> <span class="string">"Ruby"</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <a class="link" href="../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">,</span> <span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">const</span><span class="special">*></span> <span class="identifier">vector_type</span><span class="special">;</span> |
| <span class="identifier">vector_type</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'x'</span><span class="special">,</span> <span class="number">3.3</span><span class="special">,</span> <span class="identifier">s</span><span class="special">);</span> |
| |
| <span class="keyword">typedef</span> <a class="link" href="../sequence/intrinsic/metafunctions/begin.html" title="begin"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">begin</span></code></a><span class="special"><</span><span class="identifier">vector_type</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">A</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <a class="link" href="../sequence/intrinsic/metafunctions/end.html" title="end"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">end</span></code></a><span class="special"><</span><span class="identifier">vector_type</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">B</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <a class="link" href="../iterator/metafunctions/next.html" title="next"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></code></a><span class="special"><</span><span class="identifier">A</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">C</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <a class="link" href="../iterator/metafunctions/prior.html" title="prior"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">prior</span></code></a><span class="special"><</span><span class="identifier">B</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">D</span><span class="special">;</span> |
| |
| <span class="identifier">C</span> <span class="identifier">c</span><span class="special">(</span><span class="identifier">vec</span><span class="special">);</span> |
| <span class="identifier">D</span> <span class="identifier">d</span><span class="special">(</span><span class="identifier">vec</span><span class="special">);</span> |
| |
| <span class="identifier">iterator_range</span><span class="special"><</span><span class="identifier">C</span><span class="special">,</span> <span class="identifier">D</span><span class="special">></span> <span class="identifier">range</span><span class="special">(</span><span class="identifier">c</span><span class="special">,</span> <span class="identifier">d</span><span class="special">);</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">range</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| </pre> |
| </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 © 2001-2007 Joel de Guzman, Dan Marsden, Tobias |
| Schwinger<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> |
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