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| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="range.reference.algorithms.set.set_union"></a><a class="link" href="set_union.html" title="set_union">set_union</a> |
| </h5></div></div></div> |
| <a name="range.reference.algorithms.set.set_union.prototype"></a><h6> |
| <a name="id734387"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.prototype">Prototype</a> |
| </h6> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> |
| <span class="keyword">class</span> <span class="identifier">SinglePassRange1</span><span class="special">,</span> |
| <span class="keyword">class</span> <span class="identifier">SinglePassRange2</span><span class="special">,</span> |
| <span class="keyword">class</span> <span class="identifier">OutputIterator</span> |
| <span class="special">></span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">set_union</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="identifier">OutputIterator</span> <span class="identifier">out</span><span class="special">);</span> |
| |
| <span class="keyword">template</span><span class="special"><</span> |
| <span class="keyword">class</span> <span class="identifier">SinglePassRange1</span><span class="special">,</span> |
| <span class="keyword">class</span> <span class="identifier">SinglePassRange2</span><span class="special">,</span> |
| <span class="keyword">class</span> <span class="identifier">OutputIterator</span><span class="special">,</span> |
| <span class="keyword">class</span> <span class="identifier">BinaryPredicate</span> |
| <span class="special">></span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">set_union</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="identifier">OutputIterator</span> <span class="identifier">out</span><span class="special">,</span> |
| <span class="identifier">BinaryPredicate</span> <span class="identifier">pred</span><span class="special">);</span> |
| </pre> |
| <p> |
| </p> |
| <a name="range.reference.algorithms.set.set_union.description"></a><h6> |
| <a name="id734733"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.description">Description</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="identifier">set_union</span></code> constructs |
| a sorted range that is the union of the sorted ranges <code class="computeroutput"><span class="identifier">rng1</span></code> |
| and <code class="computeroutput"><span class="identifier">rng2</span></code>. The return |
| value is the end of the output range. The ordering relationship is determined |
| by using <code class="computeroutput"><span class="keyword">operator</span><span class="special"><</span></code> |
| in the non-predicate versions, and by evaluating <code class="computeroutput"><span class="identifier">pred</span></code> |
| in the predicate versions. |
| </p> |
| <a name="range.reference.algorithms.set.set_union.definition"></a><h6> |
| <a name="id734816"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.definition">Definition</a> |
| </h6> |
| <p> |
| Defined in the header file <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">range</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">set_algorithm</span><span class="special">.</span><span class="identifier">hpp</span></code> |
| </p> |
| <a name="range.reference.algorithms.set.set_union.requirements"></a><h6> |
| <a name="id734887"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.requirements">Requirements</a> |
| </h6> |
| <p> |
| <span class="bold"><strong>For the non-predicate versions:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code> |
| is a model of the <a class="link" href="../../../concepts/single_pass_range.html" title="Single Pass Range">Single |
| Pass Range</a> Concept. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code> |
| is a model of the <a class="link" href="../../../concepts/single_pass_range.html" title="Single Pass Range">Single |
| Pass Range</a> Concept. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">OutputIterator</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">OutputIteratorConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code> |
| and <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code> |
| have the same value type. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code>'s |
| value type is a model of the <code class="computeroutput"><span class="identifier">LessThanComparableConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code>'s |
| value type is a model of the <code class="computeroutput"><span class="identifier">LessThanComparableConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| The ordering of objects of type <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code>'s |
| value type is a <span class="bold"><strong><span class="emphasis"><em>strict weak ordering</em></span></strong></span>, |
| as defined in the <code class="computeroutput"><span class="identifier">LessThanComparableConcept</span></code> |
| requirements. |
| </li> |
| <li class="listitem"> |
| The ordering of objects of type <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code>'s |
| value type is a <span class="bold"><strong><span class="emphasis"><em>strict weak ordering</em></span></strong></span>, |
| as defined in the <code class="computeroutput"><span class="identifier">LessThanComparableConcept</span></code> |
| requirements. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>For the predicate versions:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code> |
| is a model of the <a class="link" href="../../../concepts/single_pass_range.html" title="Single Pass Range">Single |
| Pass Range</a> Concept. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code> |
| is a model of the <a class="link" href="../../../concepts/single_pass_range.html" title="Single Pass Range">Single |
| Pass Range</a> Concept. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">OutputIterator</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">OutputIteratorConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code> |
| and <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code> |
| have the same value type. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">BinaryPredicate</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">StrictWeakOrderingConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange1</span></code>'s |
| value type is convertible to <code class="computeroutput"><span class="identifier">BinaryPredicate</span></code>'s |
| first argument type. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange2</span></code>'s |
| value type is convertible to <code class="computeroutput"><span class="identifier">BinaryPredicate</span></code>'s |
| second argument types. |
| </li> |
| </ul></div> |
| <a name="range.reference.algorithms.set.set_union.precondition_"></a><h6> |
| <a name="id735352"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.precondition_">Precondition:</a> |
| </h6> |
| <p> |
| <span class="bold"><strong>For the non-predicate versions:</strong></span> |
| </p> |
| <p> |
| <code class="computeroutput"><span class="identifier">rng1</span></code> and <code class="computeroutput"><span class="identifier">rng2</span></code> are sorted in ascending order |
| according to <code class="computeroutput"><span class="keyword">operator</span><span class="special"><</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>For the predicate versions:</strong></span> |
| </p> |
| <p> |
| <code class="computeroutput"><span class="identifier">rng1</span></code> and <code class="computeroutput"><span class="identifier">rng2</span></code> are sorted in ascending order |
| according to <code class="computeroutput"><span class="identifier">pred</span></code>. |
| </p> |
| <a name="range.reference.algorithms.set.set_union.complexity"></a><h6> |
| <a name="id735465"></a> |
| <a class="link" href="set_union.html#range.reference.algorithms.set.set_union.complexity">Complexity</a> |
| </h6> |
| <p> |
| Linear. <code class="computeroutput"><span class="identifier">O</span><span class="special">(</span><span class="identifier">N</span><span class="special">)</span></code>, |
| where <code class="computeroutput"><span class="identifier">N</span></code> is <code class="computeroutput"><span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng1</span><span class="special">)</span> <span class="special">+</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng2</span><span class="special">)</span></code>. |
| </p> |
| </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 © 2003 -2010 Thorsten Ottosen, Neil Groves<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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