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| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="range.reference.algorithms.numeric.partial_sum"></a><a class="link" href="partial_sum.html" title="partial_sum"> |
| partial_sum</a> |
| </h5></div></div></div> |
| <a name="range.reference.algorithms.numeric.partial_sum.prototype"></a><h6> |
| <a name="id863674"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.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">SinglePassRange</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">partial_sum</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">SinglePassRange</span><span class="special">&</span> <span class="identifier">rng</span><span class="special">,</span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">out_it</span><span class="special">);</span> |
| |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">SinglePassRange</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">BinaryOperation</span><span class="special">></span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">partial_sum</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">SinglePassRange</span><span class="special">&</span> <span class="identifier">rng</span><span class="special">,</span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">out_it</span><span class="special">,</span> |
| <span class="identifier">BinaryOperation</span> <span class="identifier">op</span><span class="special">);</span> |
| </pre> |
| <p> |
| </p> |
| <a name="range.reference.algorithms.numeric.partial_sum.description"></a><h6> |
| <a name="id863926"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.description">Description</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="identifier">partial_sum</span></code> calculates |
| a generalised partial sum of <code class="computeroutput"><span class="identifier">rng</span></code> |
| in the same manner as <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">partial_sum</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">begin</span><span class="special">(</span><span class="identifier">rng</span><span class="special">),</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">end</span><span class="special">(</span><span class="identifier">rng</span><span class="special">),</span> <span class="identifier">out_it</span><span class="special">)</span></code>. See <a href="http://www.sgi.com/tech/stl/partial_sum.html" target="_top">partial_sum</a>. |
| </p> |
| <a name="range.reference.algorithms.numeric.partial_sum.definition"></a><h6> |
| <a name="id864065"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.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">numeric</span><span class="special">.</span><span class="identifier">hpp</span></code> |
| </p> |
| <a name="range.reference.algorithms.numeric.partial_sum.requirements"></a><h6> |
| <a name="id864128"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.requirements">Requirements</a> |
| </h6> |
| <a name="range.reference.algorithms.numeric.partial_sum.for_the_first_version"></a><h6> |
| <a name="id864151"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.for_the_first_version">For |
| the first version</a> |
| </h6> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange</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"> |
| If <code class="computeroutput"><span class="identifier">x</span></code> and <code class="computeroutput"><span class="identifier">y</span></code> are objects of <code class="computeroutput"><span class="identifier">SinglePassRange</span></code>'s value type, then |
| <code class="computeroutput"><span class="identifier">x</span> <span class="special">+</span> |
| <span class="identifier">y</span></code> is defined. |
| </li> |
| <li class="listitem"> |
| The return type of <code class="computeroutput"><span class="identifier">x</span> <span class="special">+</span> <span class="identifier">y</span></code> |
| is convertible to the value type of <code class="computeroutput"><span class="identifier">SinglePassRange</span></code>. |
| </li> |
| <li class="listitem"> |
| The value type of <code class="computeroutput"><span class="identifier">SinglePassRange</span></code> |
| is convertible to a type in <code class="computeroutput"><span class="identifier">OutputIterator</span></code>'s |
| set of value types. |
| </li> |
| </ol></div> |
| <a name="range.reference.algorithms.numeric.partial_sum.for_the_second_version"></a><h6> |
| <a name="id864365"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.for_the_second_version">For |
| the second version</a> |
| </h6> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">SinglePassRange</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">BinaryOperation</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">BinaryFunctionConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| The result type of <code class="computeroutput"><span class="identifier">BinaryOperation</span></code> |
| is convertible to the value type of <code class="computeroutput"><span class="identifier">SinglePassRange</span></code>. |
| </li> |
| <li class="listitem"> |
| The value type of <code class="computeroutput"><span class="identifier">SinglePassRange</span></code> |
| is convertible to a type in <code class="computeroutput"><span class="identifier">OutputIterator</span></code>'s |
| set of value types. |
| </li> |
| </ol></div> |
| <a name="range.reference.algorithms.numeric.partial_sum.precondition_"></a><h6> |
| <a name="id864536"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.precondition_">Precondition:</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="special">[</span><span class="identifier">result</span><span class="special">,</span> <span class="identifier">result</span> |
| <span class="special">+</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng</span><span class="special">))</span></code> is a valid range. |
| </p> |
| <a name="range.reference.algorithms.numeric.partial_sum.complexity"></a><h6> |
| <a name="id864610"></a> |
| <a class="link" href="partial_sum.html#range.reference.algorithms.numeric.partial_sum.complexity">Complexity</a> |
| </h6> |
| <p> |
| Linear. If <code class="computeroutput"><span class="identifier">empty</span><span class="special">(</span><span class="identifier">rng</span><span class="special">)</span></code> |
| then zero applications, otherwise <code class="computeroutput"><span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng</span><span class="special">)</span> <span class="special">-</span> <span class="number">1</span></code> |
| applications are performed. |
| </p> |
| </div> |
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| <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> |
| </div></td> |
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