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| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="fusion.iterator.functions.distance"></a><a class="link" href="distance.html" title="distance">distance</a> |
| </h4></div></div></div> |
| <a name="fusion.iterator.functions.distance.description"></a><h6> |
| <a name="id815337"></a> |
| <a class="link" href="distance.html#fusion.iterator.functions.distance.description">Description</a> |
| </h6> |
| <p> |
| Returns the distance between 2 iterators. |
| </p> |
| <a name="fusion.iterator.functions.distance.synopsis"></a><h6> |
| <a name="id815355"></a> |
| <a class="link" href="distance.html#fusion.iterator.functions.distance.synopsis">Synopsis</a> |
| </h6> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> |
| <span class="keyword">typename</span> <span class="identifier">I</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">J</span> |
| <span class="special">></span> |
| <span class="keyword">typename</span> <a class="link" href="../metafunctions/distance.html" title="distance"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">distance</span></code></a><span class="special"><</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">J</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">I</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">i</span><span class="special">,</span> <span class="identifier">J</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">j</span><span class="special">);</span> |
| </pre> |
| <div class="table"> |
| <a name="id815499"></a><p class="title"><b>Table 1.5. Parameters</b></p> |
| <div class="table-contents"><table class="table" summary="Parameters"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Parameter |
| </p> |
| </th> |
| <th> |
| <p> |
| Requirement |
| </p> |
| </th> |
| <th> |
| <p> |
| Description |
| </p> |
| </th> |
| </tr></thead> |
| <tbody><tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">i</span></code>, <code class="computeroutput"><span class="identifier">j</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Models of <a class="link" href="../concepts/forward_iterator.html" title="Forward Iterator">Forward |
| Iterator</a> into the same sequence |
| </p> |
| </td> |
| <td> |
| <p> |
| The start and end points of the distance to be measured |
| </p> |
| </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <br class="table-break"><a name="fusion.iterator.functions.distance.expression_semantics"></a><h6> |
| <a name="id815593"></a> |
| <a class="link" href="distance.html#fusion.iterator.functions.distance.expression_semantics">Expression |
| Semantics</a> |
| </h6> |
| <pre class="programlisting"><a class="link" href="distance.html" title="distance"><code class="computeroutput"><span class="identifier">distance</span></code></a><span class="special">(</span><span class="identifier">i</span><span class="special">,</span><span class="identifier">j</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Return type</strong></span>: <code class="computeroutput"><span class="keyword">int</span></code> |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns the distance between |
| iterators <code class="computeroutput"><span class="identifier">i</span></code> and <code class="computeroutput"><span class="identifier">j</span></code>. |
| </p> |
| <a name="fusion.iterator.functions.distance.header"></a><h6> |
| <a name="id815676"></a> |
| <a class="link" href="distance.html#fusion.iterator.functions.distance.header">Header</a> |
| </h6> |
| <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">distance</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">distance</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <a name="fusion.iterator.functions.distance.example"></a><h6> |
| <a name="id815784"></a> |
| <a class="link" href="distance.html#fusion.iterator.functions.distance.example">Example</a> |
| </h6> |
| <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">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">;</span> |
| |
| <span class="identifier">vec</span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">);</span> |
| <span class="identifier">assert</span><span class="special">(</span><a class="link" href="distance.html" title="distance"><code class="computeroutput"><span class="identifier">distance</span></code></a><span class="special">(</span><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">v</span><span class="special">),</span> <a class="link" href="next.html" title="next"><code class="computeroutput"><span class="identifier">next</span></code></a><span class="special">(</span><a class="link" href="next.html" title="next"><code class="computeroutput"><span class="identifier">next</span></code></a><span class="special">(</span><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">v</span><span class="special">))))</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span> |
| </pre> |
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| Distributed under the Boost Software License, Version 1.0. (See accompanying |
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