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| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="range.reference.algorithms.new.for_each"></a><a class="link" href="for_each.html" title="for_each"> for_each</a> |
| </h5></div></div></div> |
| <a name="range.reference.algorithms.new.for_each.prototype"></a><h6> |
| <a name="id855365"></a> |
| <a class="link" href="for_each.html#range.reference.algorithms.new.for_each.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">BinaryFunction</span> |
| <span class="special">></span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">for_each</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">BinaryFunction</span> <span class="identifier">fn</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">BinaryFunction</span> |
| <span class="special">></span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">for_each</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="identifier">SinglePassRange2</span><span class="special">&</span> <span class="identifier">rng2</span><span class="special">,</span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">fn</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">BinaryFunction</span> |
| <span class="special">></span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">for_each</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="keyword">const</span> <span class="identifier">SinglePassRange2</span><span class="special">&</span> <span class="identifier">rng2</span><span class="special">,</span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">fn</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">BinaryFunction</span> |
| <span class="special">></span> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">for_each</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> |
| <span class="identifier">BinaryFunction</span> <span class="identifier">fn</span><span class="special">);</span> |
| </pre> |
| <p> |
| </p> |
| <a name="range.reference.algorithms.new.for_each.description"></a><h6> |
| <a name="id855933"></a> |
| <a class="link" href="for_each.html#range.reference.algorithms.new.for_each.description">Description</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="identifier">for_each</span></code> traverses forward |
| through <code class="computeroutput"><span class="identifier">rng1</span></code> and <code class="computeroutput"><span class="identifier">rng2</span></code> simultaneously. For each iteration, |
| the element <code class="computeroutput"><span class="identifier">x</span></code> is used |
| from <code class="computeroutput"><span class="identifier">rng1</span></code> and the corresponding |
| element <code class="computeroutput"><span class="identifier">y</span></code> is used from |
| <code class="computeroutput"><span class="identifier">rng2</span></code> to invoke <code class="computeroutput"><span class="identifier">fn</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span><span class="identifier">y</span><span class="special">)</span></code>. |
| </p> |
| <p> |
| Iteration is stopped upon reaching the end of the shorter of <code class="computeroutput"><span class="identifier">rng1</span></code>, or <code class="computeroutput"><span class="identifier">rng2</span></code>. |
| It is safe to call this function with unequal length ranges. |
| </p> |
| <a name="range.reference.algorithms.new.for_each.definition"></a><h6> |
| <a name="id856362"></a> |
| <a class="link" href="for_each.html#range.reference.algorithms.new.for_each.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_ext</span><span class="special">/</span><span class="identifier">for_each</span><span class="special">.</span><span class="identifier">hpp</span></code> |
| </p> |
| <a name="range.reference.algorithms.new.for_each.requirements"></a><h6> |
| <a name="id856434"></a> |
| <a class="link" href="for_each.html#range.reference.algorithms.new.for_each.requirements">Requirements</a> |
| </h6> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <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">BinaryFunction</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">BinaryFunctionConcept</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">BinaryFunction</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">BinaryFunction</span></code>'s |
| second argument type. |
| </li> |
| </ol></div> |
| <a name="range.reference.algorithms.new.for_each.complexity"></a><h6> |
| <a name="id856602"></a> |
| <a class="link" href="for_each.html#range.reference.algorithms.new.for_each.complexity">Complexity</a> |
| </h6> |
| <p> |
| Linear. Exactly <code class="computeroutput"><span class="identifier">min</span><span class="special">(</span><span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng1</span><span class="special">),</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng2</span><span class="special">))</span></code> |
| applications of <code class="computeroutput"><span class="identifier">BinaryFunction</span></code>. |
| </p> |
| </div> |
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| <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>) |
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