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| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="fusion.view.repetitive_view"></a><a class="link" href="repetitive_view.html" title="repetitive_view">repetitive_view</a> |
| </h3></div></div></div> |
| <a name="fusion.view.repetitive_view.description"></a><h5> |
| <a name="id961206"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.description">Description</a> |
| </h5> |
| <p> |
| <code class="computeroutput"><span class="identifier">repetitive_view</span></code> presents |
| a view which iterates over a given <a class="link" href="../sequence.html" title="Sequence">Sequence</a> |
| repeatedly. Because a <code class="computeroutput"><span class="identifier">repetitive_view</span></code> |
| has infinite length, it can only be used when some external condition determines |
| the end. Thus, initializing a fixed length sequence with a <code class="computeroutput"><span class="identifier">repetitive_view</span></code> is okay, but printing a |
| <code class="computeroutput"><span class="identifier">repetitive_view</span></code> to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span></code> |
| is not. |
| </p> |
| <a name="fusion.view.repetitive_view.header"></a><h5> |
| <a name="id961271"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.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">repetitive_view</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">repetitive_view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <a name="fusion.view.repetitive_view.synopsis"></a><h5> |
| <a name="id961379"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.synopsis">Synopsis</a> |
| </h5> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">repetitive_view</span><span class="special">;</span> |
| </pre> |
| <a name="fusion.view.repetitive_view.template_parameters"></a><h5> |
| <a name="id961431"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.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">Sequence</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| An arbitrary Fusion <a class="link" href="../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward |
| Sequence</a> |
| </p> |
| </td> |
| <td> |
| </td> |
| </tr></tbody> |
| </table></div> |
| <div class="variablelist"> |
| <p class="title"><b>Notation</b></p> |
| <dl> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">RV</span></code></span></dt> |
| <dd><p> |
| A <code class="computeroutput"><span class="identifier">repetitive_view</span></code> type |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">s</span></code></span></dt> |
| <dd><p> |
| An instance of <code class="computeroutput"><span class="identifier">Sequences</span></code> |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">rv</span></code>, <code class="computeroutput"><span class="identifier">rv1</span></code>, <code class="computeroutput"><span class="identifier">rv2</span></code></span></dt> |
| <dd><p> |
| Instances of <code class="computeroutput"><span class="identifier">RV</span></code> |
| </p></dd> |
| </dl> |
| </div> |
| <a name="fusion.view.repetitive_view.expression_semantics"></a><h5> |
| <a name="id961620"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.expression_semantics">Expression |
| Semantics</a> |
| </h5> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Expression |
| </p> |
| </th> |
| <th> |
| <p> |
| Return Type |
| </p> |
| </th> |
| <th> |
| <p> |
| Semantics |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">RV</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| </td> |
| <td> |
| <p> |
| Creates an <code class="computeroutput"><span class="identifier">repetitive_view</span></code> |
| given the underlying sequence. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">RV</span><span class="special">(</span><span class="identifier">rv1</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| </td> |
| <td> |
| <p> |
| Copy constructs an <code class="computeroutput"><span class="identifier">repetitive_view</span></code> |
| from another <code class="computeroutput"><span class="identifier">repetitive_view</span></code>, |
| <code class="computeroutput"><span class="identifier">rv1</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">rv1</span> <span class="special">=</span> |
| <span class="identifier">rv2</span></code> |
| </p> |
| </td> |
| <td> |
| </td> |
| <td> |
| <p> |
| Assigns to a <code class="computeroutput"><span class="identifier">repetitive_view</span></code>, |
| <code class="computeroutput"><span class="identifier">rv1</span></code>, from another |
| <code class="computeroutput"><span class="identifier">repetitive_view</span></code>, |
| <code class="computeroutput"><span class="identifier">rv2</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><a class="link" href="../sequence/intrinsic/functions/begin.html" title="begin"><code class="computeroutput"><span class="identifier">begin</span></code></a><span class="special">(</span><span class="identifier">rv</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../iterator/concepts/forward_iterator.html" title="Forward Iterator">Forward |
| Iterator</a> |
| </p> |
| </td> |
| <td> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><a class="link" href="../sequence/intrinsic/functions/end.html" title="end"><code class="computeroutput"><span class="identifier">end</span></code></a><span class="special">(</span><span class="identifier">rv</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../iterator/concepts/forward_iterator.html" title="Forward Iterator">Forward |
| Iterator</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| Creates an unreachable iterator (since the sequnce is infinite) |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <a name="fusion.view.repetitive_view.result_type_expressions"></a><h5> |
| <a name="id961953"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.result_type_expressions">Result |
| Type Expressions</a> |
| </h5> |
| <div class="informaltable"><table class="table"> |
| <colgroup><col></colgroup> |
| <thead><tr><th> |
| <p> |
| Expression |
| </p> |
| </th></tr></thead> |
| <tbody> |
| <tr><td> |
| <p> |
| <code class="computeroutput"><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">RV</span><span class="special">>::</span><span class="identifier">type</span></code> |
| </p> |
| </td></tr> |
| <tr><td> |
| <p> |
| <code class="computeroutput"><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">RV</span><span class="special">>::</span><span class="identifier">type</span></code> |
| </p> |
| </td></tr> |
| </tbody> |
| </table></div> |
| <a name="fusion.view.repetitive_view.example"></a><h5> |
| <a name="id962082"></a> |
| <a class="link" href="repetitive_view.html#fusion.view.repetitive_view.example">Example</a> |
| </h5> |
| <pre class="programlisting"><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="identifier">vec1</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">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">></span> <span class="identifier">vec2</span><span class="special">;</span> |
| |
| <span class="identifier">vec1</span> <span class="identifier">v1</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'c'</span><span class="special">,</span> <span class="number">2.0</span><span class="special">);</span> |
| <span class="identifier">vec2</span> <span class="identifier">v2</span><span class="special">(</span><span class="identifier">repetitive_view</span><span class="special"><</span><span class="identifier">vec1</span><span class="special">>(</span><span class="identifier">v1</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">v2</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> <span class="comment">// 1, 'c', 2.0, 1, 'c' |
| </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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