forked from boostorg/fusion
updates functional module: only two unfused variants, now
[SVN r51381]
This commit is contained in:
Tobias Schwinger
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>next</title>
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<link rel="stylesheet" href="../../../../../../../doc/html/boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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<link rel="start" href="../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<link rel="up" href="../metafunctions.html" title="Metafunctions">
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<link rel="prev" href="deref.html" title="deref">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="fusion.iterator.metafunctions.next"></a><a href="next.html" title="next">next</a></h4></div></div></div>
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<a name="fusion.iterator.metafunctions.next.description"></a><h5>
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<a name="id484240"></a>
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<a name="id977476"></a>
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<a href="next.html#fusion.iterator.metafunctions.next.description">Description</a>
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</h5>
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<p>
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Returns the type of the next iterator in a sequence.
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</p>
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<a name="fusion.iterator.metafunctions.next.synposis"></a><h5>
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<a name="id484270"></a>
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<a name="id977502"></a>
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<a href="next.html#fusion.iterator.metafunctions.next.synposis">Synposis</a>
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</h5>
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<pre class="programlisting">
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<span class="keyword">template</span><span class="special"><</span>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
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<span class="keyword">typename</span> <span class="identifier">I</span>
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<span class="special">></span>
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<span class="keyword">struct</span> <span class="identifier">next</span>
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@ -46,7 +45,7 @@
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<span class="special">};</span>
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</pre>
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<div class="table">
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<a name="id484371"></a><p class="title"><b>Table<EFBFBD>1.13.<2E>Parameters</b></p>
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<a name="id977590"></a><p class="title"><b>Table<EFBFBD>1.13.<2E>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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<tbody><tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">I</span></tt>
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<code class="computeroutput"><span class="identifier">I</span></code>
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</p>
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</td>
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<td>
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@ -92,38 +91,35 @@
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</table>
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</div>
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<a name="fusion.iterator.metafunctions.next.expression_semantics"></a><h5>
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<a name="id484472"></a>
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<a name="id977680"></a>
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<a href="next.html#fusion.iterator.metafunctions.next.expression_semantics">Expression
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Semantics</a>
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</h5>
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<pre class="programlisting">
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<a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special"><</span><span class="identifier">I</span><span class="special">>::</span><span class="identifier">type</span>
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<pre class="programlisting"><a href="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">I</span><span class="special">>::</span><span class="identifier">type</span>
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</pre>
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<p>
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<span class="bold"><b>Return type</b></span>: A model of the same iterator
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concept as <tt class="computeroutput"><span class="identifier">I</span></tt>.
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<span class="bold"><strong>Return type</strong></span>: A model of the same iterator
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concept as <code class="computeroutput"><span class="identifier">I</span></code>.
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</p>
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<p>
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<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
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next element in the sequence after <tt class="computeroutput"><span class="identifier">I</span></tt>.
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<span class="bold"><strong>Semantics</strong></span>: Returns an iterator to the
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next element in the sequence after <code class="computeroutput"><span class="identifier">I</span></code>.
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</p>
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<a name="fusion.iterator.metafunctions.next.header"></a><h5>
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<a name="id484598"></a>
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<a name="id977790"></a>
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<a href="next.html#fusion.iterator.metafunctions.next.header">Header</a>
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</h5>
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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">iterator</span><span class="special">/</span><span class="identifier">next</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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<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">iterator</span><span class="special">/</span><span class="identifier">next</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">next</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.iterator.metafunctions.next.example"></a><h5>
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<a name="id484757"></a>
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<a name="id977928"></a>
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<a href="next.html#fusion.iterator.metafunctions.next.example">Example</a>
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</h5>
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<pre class="programlisting">
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<span class="keyword">typedef</span> <a href="../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">vec</span><span class="special">;</span>
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<span class="keyword">typedef</span> <a href="next.html" title="next"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">next</span></tt></a><span class="special"><</span><a href="../../sequence/intrinsic/metafunctions/begin.html" title="begin"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">begin</span></tt></a><span class="special"><</span><span class="identifier">vec</span><span class="special">>::</span><span class="identifier">type</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">second</span><span class="special">;</span>
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<pre class="programlisting"><span class="keyword">typedef</span> <a 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">double</span><span class="special">></span> <span class="identifier">vec</span><span class="special">;</span>
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<span class="keyword">typedef</span> <a href="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><a 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">vec</span><span class="special">>::</span><span class="identifier">type</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">second</span><span class="special">;</span>
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<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><a href="value_of.html" title="value_of"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_of</span></tt></a><span class="special"><</span><span class="identifier">second</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="keyword">double</span><span class="special">>));</span>
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<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><a href="value_of.html" title="value_of"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_of</span></code></a><span class="special"><</span><span class="identifier">second</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span> <span class="keyword">double</span><span class="special">>));</span>
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</pre>
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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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