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<div class="titlepage"><div><div><h5 class="title">
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<a name="fusion.algorithms.iteration.functions.accumulate"></a><a href="accumulate.html" title="accumulate">accumulate</a></h5></div></div></div>
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<a name="fusion.algorithms.iteration.functions.accumulate.description"></a><h6>
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<a name="id553582"></a>
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<a name="id553338"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.description">Description</a>
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</h6>
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<p>
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Repeatedly applies binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
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Function Object">Polymorphic
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Function Object</a><EFBFBD><tt class="computeroutput"><span class="identifier">f</span></tt>
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Repeatedly applies binary <a href="../../concepts/poly.html" title=" Polymorphic Function
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Object">Polymorphic
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Function Object</a> <tt class="computeroutput"><span class="identifier">f</span></tt>
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to each element of a sequence and the previous state. <a href="accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">accumulate</span></tt></a> is equivalent to
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<a href="fold.html" title="fold"><tt class="computeroutput"><span class="identifier">fold</span></tt></a>.
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</p>
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<a name="fusion.algorithms.iteration.functions.accumulate.synopsis"></a><h6>
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<a name="id553666"></a>
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<a name="id553423"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.synopsis">Synopsis</a>
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</h6>
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<pre class="programlisting">
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@ -50,7 +50,7 @@
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<span class="identifier">Sequence</span><span class="special">&</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">F</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">f</span><span class="special">);</span>
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</pre>
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<div class="table">
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<a name="id553926"></a><p class="title"><b>Table<EFBFBD>1.33.<2E>Parameters</b></p>
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<a name="id553682"></a><p class="title"><b>Table<EFBFBD>1.33.<2E>Parameters</b></p>
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<table class="table" summary="Parameters">
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<colgroup>
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<col>
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<td>A
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model of <a href="../../../sequences/concepts/forward_sequence.html" title="Forward
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Sequence">Forward
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Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span><EFBFBD><span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt> must be a valid expression for
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Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span> <span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt> must be a valid expression for
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each element <tt class="computeroutput"><span class="identifier">e1</span></tt> to
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<tt class="computeroutput"><span class="identifier">eN</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
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</td>
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<tr>
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<td><tt class="computeroutput"><span class="identifier">f</span></tt></td>
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<td>A
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model of binary <a href="../../concepts/polymorphic_function_object.html" title="Polymorphic
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Function Object">Polymorphic
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model of binary <a href="../../concepts/poly.html" title=" Polymorphic Function
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Object">Polymorphic
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Function Object</a>
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</td>
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<td>Operation's argument</td>
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@ -93,7 +93,7 @@
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</table>
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</div>
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<a name="fusion.algorithms.iteration.functions.accumulate.expression_semantics"></a><h6>
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<a name="id554157"></a>
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<a name="id553914"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.expression_semantics">Expression
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Semantics</a>
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</h6>
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@ -104,25 +104,25 @@
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<span class="bold"><b>Return type</b></span>: Any type
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</p>
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<p>
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<span class="bold"><b>Semantics</b></span>: Equivalent to <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span><EFBFBD><span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt>
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where <tt class="computeroutput"><span class="identifier">e1</span><EFBFBD><span class="special">...</span><span class="identifier">eN</span></tt> are the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
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<span class="bold"><b>Semantics</b></span>: Equivalent to <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span> <span class="special">....</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e2</span><span class="special">,</span><span class="identifier">f</span><span class="special">(</span><span class="identifier">e1</span><span class="special">,</span><span class="identifier">initial_state</span><span class="special">)))</span></tt>
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where <tt class="computeroutput"><span class="identifier">e1</span> <span class="special">...</span><span class="identifier">eN</span></tt> are the elements of <tt class="computeroutput"><span class="identifier">seq</span></tt>.
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</p>
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<a name="fusion.algorithms.iteration.functions.accumulate.complexity"></a><h6>
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<a name="id554363"></a>
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<a name="id554119"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.complexity">Complexity</a>
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</h6>
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<p>
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Linear, exactly <tt class="computeroutput"><a href="../../../sequences/intrinsics/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">value</span></tt> applications of <tt class="computeroutput"><span class="identifier">f</span></tt>.
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</p>
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<a name="fusion.algorithms.iteration.functions.accumulate.header"></a><h6>
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<a name="id554455"></a>
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<a name="id554211"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.header">Header</a>
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</h6>
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<pre class="programlisting">
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<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">algorithm</span><span class="special">/</span><span class="identifier">iteration</span><span class="special">/</span><span class="identifier">accumulate</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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</pre>
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<a name="fusion.algorithms.iteration.functions.accumulate.example"></a><h6>
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<a name="id554561"></a>
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<a name="id554317"></a>
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<a href="accumulate.html#fusion.algorithms.iteration.functions.accumulate.example">Example</a>
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</h6>
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<pre class="programlisting">
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