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<div class="titlepage"><div><div><h4 class="title">
<a name="range.reference.utilities.join"></a><a class="link" href="join.html" title="Function join"> Function join</a>
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<p>
The intention of the <code class="computeroutput"><span class="identifier">join</span></code>
function is to join two ranges into one longer range.
</p>
<p>
The resultant range will have the lowest common traversal of the two ranges
supplied as parameters.
</p>
<p>
Note that the joined range incurs a performance cost due to the need to
check if the end of a range has been reached internally during traversal.
</p>
<a name="range.reference.utilities.join.synposis"></a><h5>
<a name="id872294"></a>
<a class="link" href="join.html#range.reference.utilities.join.synposis">Synposis</a>
</h5>
<p>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">SinglePassRange1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SinglePassRange2</span><span class="special">></span>
<span class="identifier">iterator_range</span><span class="special"><</span><span class="identifier">range_detail</span><span class="special">::</span><span class="identifier">join_iterator</span><span class="special"><</span>
<span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">SinglePassRange1</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">SinglePassRange2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">add_const</span><span class="special"><</span>
<span class="keyword">typename</span> <span class="identifier">range_value</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">SinglePassRange1</span><span class="special">>::</span><span class="identifier">type</span><span class="special">>::</span><span class="identifier">type</span><span class="special">></span>
<span class="special">></span>
<span class="identifier">join</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">SinglePassRange1</span><span class="special">&</span> <span class="identifier">rng1</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">SinglePassRange2</span><span class="special">&</span> <span class="identifier">rng2</span><span class="special">)</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">SinglePassRange1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SinglePassRange2</span><span class="special">></span>
<span class="identifier">iterator_range</span><span class="special"><</span><span class="identifier">range_detail</span><span class="special">::</span><span class="identifier">join_iterator</span><span class="special"><</span>
<span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">SinglePassRange1</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">SinglePassRange2</span><span class="special">>::</span><span class="identifier">type</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">range_value</span><span class="special"><</span><span class="identifier">SinglePassRange1</span><span class="special">>::</span><span class="identifier">type</span><span class="special">></span>
<span class="special">></span>
<span class="identifier">join</span><span class="special">(</span><span class="identifier">SinglePassRange1</span><span class="special">&</span> <span class="identifier">rng1</span><span class="special">,</span> <span class="identifier">SinglePassRange2</span><span class="special">&</span> <span class="identifier">rng2</span><span class="special">);</span>
</pre>
<p>
</p>
<a name="range.reference.utilities.join.example"></a><h5>
<a name="id872828"></a>
<a class="link" href="join.html#range.reference.utilities.join.example">Example</a>
</h5>
<p>
The expression <code class="computeroutput"><span class="identifier">join</span><span class="special">(</span><span class="identifier">irange</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">5</span><span class="special">),</span> <span class="identifier">irange</span><span class="special">(</span><span class="number">5</span><span class="special">,</span><span class="number">10</span><span class="special">))</span></code> would
evaluate to a range representing an integer range <code class="computeroutput"><span class="special">[</span><span class="number">0</span><span class="special">,</span><span class="number">10</span><span class="special">)</span></code>
</p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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