forked from boostorg/fusion
updates functional module: only two unfused variants, now
[SVN r51381]
This commit is contained in:
Tobias Schwinger
@ -3,7 +3,7 @@
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>accumulate</title>
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<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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||||
<link rel="up" href="../functions.html" title="Functions">
|
||||
<link rel="prev" href="fold.html" title="fold">
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@ -26,31 +26,30 @@
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||||
<div class="titlepage"><div><div><h5 class="title">
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<a name="fusion.algorithm.iteration.functions.accumulate"></a><a href="accumulate.html" title="accumulate">accumulate</a></h5></div></div></div>
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<a name="fusion.algorithm.iteration.functions.accumulate.description"></a><h6>
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<a name="id581185"></a>
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<a name="id1150181"></a>
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<a href="accumulate.html#fusion.algorithm.iteration.functions.accumulate.description">Description</a>
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</h6>
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<p>
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For a sequence <tt class="computeroutput"><span class="identifier">Seq</span></tt>, initial
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state, and binary function object or function pointer <tt class="computeroutput"><span class="identifier">f</span></tt>,
|
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accumulate repeatedly applies binary <tt class="computeroutput"><span class="identifier">f</span></tt>
|
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to each element of <tt class="computeroutput"><span class="identifier">Seq</span></tt>
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For a sequence <code class="computeroutput"><span class="identifier">Seq</span></code>, initial
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state, and binary function object or function pointer <code class="computeroutput"><span class="identifier">f</span></code>,
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accumulate repeatedly applies binary <code class="computeroutput"><span class="identifier">f</span></code>
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to each element of <code class="computeroutput"><span class="identifier">Seq</span></code>
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and the previous state.
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</p>
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<a name="fusion.algorithm.iteration.functions.accumulate.synopsis"></a><h6>
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<a name="id581264"></a>
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<a name="id1150252"></a>
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<a href="accumulate.html#fusion.algorithm.iteration.functions.accumulate.synopsis">Synopsis</a>
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</h6>
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<pre class="programlisting">
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<span class="keyword">template</span><span class="special"><</span>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
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<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
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<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
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<span class="keyword">typename</span> <span class="identifier">F</span>
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<span class="special">></span>
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<span class="keyword">typename</span> <a href="../metafunctions/accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">accumulate</span></tt></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">accumulate</span><span class="special">(</span>
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<span class="keyword">typename</span> <a href="../metafunctions/accumulate.html" title="accumulate"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">accumulate</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">accumulate</span><span class="special">(</span>
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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="id581526"></a><p class="title"><b>Table<EFBFBD>1.34.<2E>Parameters</b></p>
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<a name="id1150480"></a><p class="title"><b>Table<EFBFBD>1.34.<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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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">seq</span></tt>
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<code class="computeroutput"><span class="identifier">seq</span></code>
|
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</p>
|
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</td>
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<td>
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<p>
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A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
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Sequence">Forward
|
||||
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span>
|
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<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>
|
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to <tt class="computeroutput"><span class="identifier">eN</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>
|
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Sequence</a>, <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">eN</span>
|
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<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></code> must be a valid expression for
|
||||
each element <code class="computeroutput"><span class="identifier">e1</span></code>
|
||||
to <code class="computeroutput"><span class="identifier">eN</span></code> in <code class="computeroutput"><span class="identifier">seq</span></code>
|
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</p>
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</td>
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<td>
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@ -100,7 +99,7 @@
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">initial_state</span></tt>
|
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<code class="computeroutput"><span class="identifier">initial_state</span></code>
|
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</p>
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</td>
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<td>
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@ -117,14 +116,14 @@
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<tr>
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<td>
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<p>
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<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">f</span></code>
|
||||
</p>
|
||||
</td>
|
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<td>
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<p>
|
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<tt class="computeroutput"><a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></tt></a><span class="special"><</span><span class="identifier">F</span><span class="special">(</span><span class="identifier">E</span><span class="special">,</span><span class="identifier">S</span><span class="special">)>::</span><span class="identifier">type</span></tt> is the return type of <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></tt>
|
||||
for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
|
||||
of type <tt class="computeroutput"><span class="identifier">E</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>, and current state <tt class="computeroutput"><span class="identifier">s</span></tt> of type <tt class="computeroutput"><span class="identifier">S</span></tt>
|
||||
<code class="computeroutput"><a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><span class="special"><</span><span class="identifier">F</span><span class="special">(</span><span class="identifier">E</span><span class="special">,</span><span class="identifier">S</span><span class="special">)>::</span><span class="identifier">type</span></code> is the return type of <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></code>
|
||||
for each element <code class="computeroutput"><span class="identifier">e</span></code>
|
||||
of type <code class="computeroutput"><span class="identifier">E</span></code> in <code class="computeroutput"><span class="identifier">seq</span></code>, and current state <code class="computeroutput"><span class="identifier">s</span></code> of type <code class="computeroutput"><span class="identifier">S</span></code>
|
||||
</p>
|
||||
</td>
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<td>
|
||||
@ -137,41 +136,38 @@
|
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</table>
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</div>
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<a name="fusion.algorithm.iteration.functions.accumulate.expression_semantics"></a><h6>
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<a name="id581977"></a>
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<a name="id1150879"></a>
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<a href="accumulate.html#fusion.algorithm.iteration.functions.accumulate.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="identifier">accumulate</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
<pre class="programlisting"><span class="identifier">accumulate</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: Any type
|
||||
<span class="bold"><strong>Return type</strong></span>: Any type
|
||||
</p>
|
||||
<p>
|
||||
<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>
|
||||
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>.
|
||||
<span class="bold"><strong>Semantics</strong></span>: Equivalent to <code 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></code>
|
||||
where <code class="computeroutput"><span class="identifier">e1</span> <span class="special">...</span><span class="identifier">eN</span></code> are the elements of <code class="computeroutput"><span class="identifier">seq</span></code>.
|
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</p>
|
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<a name="fusion.algorithm.iteration.functions.accumulate.complexity"></a><h6>
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<a name="id582188"></a>
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<a name="id1151063"></a>
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<a href="accumulate.html#fusion.algorithm.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="../../../sequence/intrinsic/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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Linear, exactly <code class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">value</span></code> applications of <code class="computeroutput"><span class="identifier">f</span></code>.
|
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</p>
|
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<a name="fusion.algorithm.iteration.functions.accumulate.header"></a><h6>
|
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<a name="id582284"></a>
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<a name="id1151147"></a>
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<a href="accumulate.html#fusion.algorithm.iteration.functions.accumulate.header">Header</a>
|
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</h6>
|
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<pre class="programlisting">
|
||||
<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>
|
||||
<pre class="programlisting"><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>
|
||||
<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">include</span><span class="special">/</span><span class="identifier">accumulate</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
</pre>
|
||||
<a name="fusion.algorithm.iteration.functions.accumulate.example"></a><h6>
|
||||
<a name="id582454"></a>
|
||||
<a name="id1151296"></a>
|
||||
<a href="accumulate.html#fusion.algorithm.iteration.functions.accumulate.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">struct</span> <span class="identifier">make_string</span>
|
||||
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">make_string</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">result_type</span><span class="special">;</span>
|
||||
|
||||
@ -182,8 +178,8 @@
|
||||
<span class="special">}</span>
|
||||
<span class="special">};</span>
|
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<span class="special">...</span>
|
||||
<span class="keyword">const</span> <a href="../../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><a href="accumulate.html" title="accumulate"><tt class="computeroutput"><span class="identifier">accumulate</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
|
||||
<span class="keyword">const</span> <a href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><a href="accumulate.html" title="accumulate"><code class="computeroutput"><span class="identifier">accumulate</span></code></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
|
||||
</pre>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
|
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@ -3,7 +3,7 @@
|
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>fold</title>
|
||||
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
|
||||
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
|
||||
<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
|
||||
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
|
||||
<link rel="up" href="../functions.html" title="Functions">
|
||||
<link rel="prev" href="../functions.html" title="Functions">
|
||||
@ -26,31 +26,30 @@
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<div class="titlepage"><div><div><h5 class="title">
|
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<a name="fusion.algorithm.iteration.functions.fold"></a><a href="fold.html" title="fold">fold</a></h5></div></div></div>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.description"></a><h6>
|
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<a name="id579456"></a>
|
||||
<a name="id1148660"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.description">Description</a>
|
||||
</h6>
|
||||
<p>
|
||||
For a sequence <tt class="computeroutput"><span class="identifier">Seq</span></tt>, initial
|
||||
state, and binary function object or function pointer <tt class="computeroutput"><span class="identifier">f</span></tt>,
|
||||
fold repeatedly applies binary <tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
to each element of <tt class="computeroutput"><span class="identifier">Seq</span></tt>
|
||||
For a sequence <code class="computeroutput"><span class="identifier">Seq</span></code>, initial
|
||||
state, and binary function object or function pointer <code class="computeroutput"><span class="identifier">f</span></code>,
|
||||
fold repeatedly applies binary <code class="computeroutput"><span class="identifier">f</span></code>
|
||||
to each element of <code class="computeroutput"><span class="identifier">Seq</span></code>
|
||||
and the previous state.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.synopsis"></a><h6>
|
||||
<a name="id579536"></a>
|
||||
<a name="id1148731"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.synopsis">Synopsis</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">State</span><span class="special">,</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">F</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/fold.html" title="fold"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">fold</span></tt></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">fold</span><span class="special">(</span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/fold.html" title="fold"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">fold</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">fold</span><span class="special">(</span>
|
||||
<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">
|
||||
<a name="id579795"></a><p class="title"><b>Table<EFBFBD>1.33.<2E>Parameters</b></p>
|
||||
<a name="id1148958"></a><p class="title"><b>Table<EFBFBD>1.33.<2E>Parameters</b></p>
|
||||
<table class="table" summary="Parameters">
|
||||
<colgroup>
|
||||
<col>
|
||||
@ -78,17 +77,17 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">seq</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">seq</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
||||
Sequence">Forward
|
||||
Sequence</a>,<tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></tt> must be a valid expression for
|
||||
each element <tt class="computeroutput"><span class="identifier">e</span></tt>
|
||||
in <tt class="computeroutput"><span class="identifier">seq</span></tt>, and current
|
||||
state <tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
Sequence</a>,<code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></code> must be a valid expression for
|
||||
each element <code class="computeroutput"><span class="identifier">e</span></code>
|
||||
in <code class="computeroutput"><span class="identifier">seq</span></code>, and current
|
||||
state <code class="computeroutput"><span class="identifier">s</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -100,7 +99,7 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">initial_state</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">initial_state</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -117,14 +116,14 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">f</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></tt></a><span class="special"><</span><span class="identifier">F</span><span class="special">(</span><span class="identifier">E</span><span class="special">,</span><span class="identifier">S</span><span class="special">)>::</span><span class="identifier">type</span></tt> is the return type of <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></tt>
|
||||
for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
|
||||
of type <tt class="computeroutput"><span class="identifier">E</span></tt> in <tt class="computeroutput"><span class="identifier">seq</span></tt>, and current state <tt class="computeroutput"><span class="identifier">s</span></tt> of type <tt class="computeroutput"><span class="identifier">S</span></tt>
|
||||
<code class="computeroutput"><a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><span class="special"><</span><span class="identifier">F</span><span class="special">(</span><span class="identifier">E</span><span class="special">,</span><span class="identifier">S</span><span class="special">)>::</span><span class="identifier">type</span></code> is the return type of <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">,</span><span class="identifier">s</span><span class="special">)</span></code>
|
||||
for each element <code class="computeroutput"><span class="identifier">e</span></code>
|
||||
of type <code class="computeroutput"><span class="identifier">E</span></code> in <code class="computeroutput"><span class="identifier">seq</span></code>, and current state <code class="computeroutput"><span class="identifier">s</span></code> of type <code class="computeroutput"><span class="identifier">S</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -137,41 +136,38 @@
|
||||
</table>
|
||||
</div>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.expression_semantics"></a><h6>
|
||||
<a name="id580205"></a>
|
||||
<a name="id1149320"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="identifier">fold</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
<pre class="programlisting"><span class="identifier">fold</span><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">initial_state</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: Any type
|
||||
<span class="bold"><strong>Return type</strong></span>: Any type
|
||||
</p>
|
||||
<p>
|
||||
<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>
|
||||
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>.
|
||||
<span class="bold"><strong>Semantics</strong></span>: Equivalent to <code 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></code>
|
||||
where <code class="computeroutput"><span class="identifier">e1</span> <span class="special">...</span><span class="identifier">eN</span></code> are the elements of <code class="computeroutput"><span class="identifier">seq</span></code>.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.complexity"></a><h6>
|
||||
<a name="id580416"></a>
|
||||
<a name="id1149504"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.complexity">Complexity</a>
|
||||
</h6>
|
||||
<p>
|
||||
Linear, exactly <tt class="computeroutput"><a href="../../../sequence/intrinsic/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>.
|
||||
Linear, exactly <code class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">value</span></code> applications of <code class="computeroutput"><span class="identifier">f</span></code>.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.header"></a><h6>
|
||||
<a name="id580510"></a>
|
||||
<a name="id1149588"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.header">Header</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<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">fold</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
<pre class="programlisting"><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">fold</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
<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">include</span><span class="special">/</span><span class="identifier">fold</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
</pre>
|
||||
<a name="fusion.algorithm.iteration.functions.fold.example"></a><h6>
|
||||
<a name="id580680"></a>
|
||||
<a name="id1149737"></a>
|
||||
<a href="fold.html#fusion.algorithm.iteration.functions.fold.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">struct</span> <span class="identifier">make_string</span>
|
||||
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">make_string</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">result_type</span><span class="special">;</span>
|
||||
|
||||
@ -182,8 +178,8 @@
|
||||
<span class="special">}</span>
|
||||
<span class="special">};</span>
|
||||
<span class="special">...</span>
|
||||
<span class="keyword">const</span> <a href="../../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><a href="fold.html" title="fold"><tt class="computeroutput"><span class="identifier">fold</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
|
||||
<span class="keyword">const</span> <a href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><a href="fold.html" title="fold"><code class="computeroutput"><span class="identifier">fold</span></code></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">""</span><span class="special">),</span> <span class="identifier">make_string</span><span class="special">())</span> <span class="special">==</span> <span class="string">"12"</span><span class="special">);</span>
|
||||
</pre>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||||
<title>for_each</title>
|
||||
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
|
||||
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
|
||||
<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
|
||||
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
|
||||
<link rel="up" href="../functions.html" title="Functions">
|
||||
<link rel="prev" href="accumulate.html" title="accumulate">
|
||||
@ -26,26 +26,25 @@
|
||||
<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="fusion.algorithm.iteration.functions.for_each"></a><a href="for_each.html" title="for_each">for_each</a></h5></div></div></div>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.description"></a><h6>
|
||||
<a name="id582957"></a>
|
||||
<a name="id1151738"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.description">Description</a>
|
||||
</h6>
|
||||
<p>
|
||||
Applies a unary function object to each element of a sequence.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.synopsis"></a><h6>
|
||||
<a name="id582989"></a>
|
||||
<a name="id1151767"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.synopsis">Synopsis</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">F</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">for_each</span></tt></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">for_each</span><span class="special">(</span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/for_each.html" title="for_each"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">for_each</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">for_each</span><span class="special">(</span>
|
||||
<span class="identifier">Sequence</span><span class="special">&</span> <span class="identifier">seq</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>
|
||||
</pre>
|
||||
<div class="table">
|
||||
<a name="id583191"></a><p class="title"><b>Table<EFBFBD>1.35.<2E>Parameters</b></p>
|
||||
<a name="id1151944"></a><p class="title"><b>Table<EFBFBD>1.35.<2E>Parameters</b></p>
|
||||
<table class="table" summary="Parameters">
|
||||
<colgroup>
|
||||
<col>
|
||||
@ -73,16 +72,16 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">seq</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">seq</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
||||
Sequence">Forward
|
||||
Sequence</a>, <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> must be a valid expression for
|
||||
each element <tt class="computeroutput"><span class="identifier">e</span></tt>
|
||||
in <tt class="computeroutput"><span class="identifier">seq</span></tt>
|
||||
Sequence</a>, <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></code> must be a valid expression for
|
||||
each element <code class="computeroutput"><span class="identifier">e</span></code>
|
||||
in <code class="computeroutput"><span class="identifier">seq</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -94,7 +93,7 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">f</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -114,41 +113,38 @@
|
||||
</table>
|
||||
</div>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.expression_semantics"></a><h6>
|
||||
<a name="id583392"></a>
|
||||
<a name="id1152123"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<a href="for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
<pre class="programlisting"><a href="for_each.html" title="for_each"><code class="computeroutput"><span class="identifier">for_each</span></code></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">void</span></tt>
|
||||
<span class="bold"><strong>Return type</strong></span>: <code class="computeroutput"><span class="keyword">void</span></code>
|
||||
</p>
|
||||
<p>
|
||||
<span class="bold"><b>Semantics</b></span>: Calls <tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></tt> for each element <tt class="computeroutput"><span class="identifier">e</span></tt>
|
||||
in <tt class="computeroutput"><span class="identifier">seq</span></tt>.
|
||||
<span class="bold"><strong>Semantics</strong></span>: Calls <code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">e</span><span class="special">)</span></code> for each element <code class="computeroutput"><span class="identifier">e</span></code>
|
||||
in <code class="computeroutput"><span class="identifier">seq</span></code>.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.complexity"></a><h6>
|
||||
<a name="id583550"></a>
|
||||
<a name="id1152261"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.complexity">Complexity</a>
|
||||
</h6>
|
||||
<p>
|
||||
Linear, exactly <tt class="computeroutput"><a href="../../../sequence/intrinsic/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>.
|
||||
Linear, exactly <code class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">value</span></code> applications of <code class="computeroutput"><span class="identifier">f</span></code>.
|
||||
</p>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.header"></a><h6>
|
||||
<a name="id583645"></a>
|
||||
<a name="id1152345"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.header">Header</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<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">for_each</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
<pre class="programlisting"><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">for_each</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
<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">include</span><span class="special">/</span><span class="identifier">for_each</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
</pre>
|
||||
<a name="fusion.algorithm.iteration.functions.for_each.example"></a><h6>
|
||||
<a name="id583816"></a>
|
||||
<a name="id1152493"></a>
|
||||
<a href="for_each.html#fusion.algorithm.iteration.functions.for_each.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">struct</span> <span class="identifier">increment</span>
|
||||
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">increment</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
|
||||
<span class="keyword">void</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span><span class="special">&</span> <span class="identifier">t</span><span class="special">)</span> <span class="keyword">const</span>
|
||||
@ -157,9 +153,9 @@
|
||||
<span class="special">}</span>
|
||||
<span class="special">};</span>
|
||||
<span class="special">...</span>
|
||||
<a href="../../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<a href="for_each.html" title="for_each"><tt class="computeroutput"><span class="identifier">for_each</span></tt></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">increment</span><span class="special">());</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">vec</span> <span class="special">==</span> <a href="../../../container/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
|
||||
<a href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<a href="for_each.html" title="for_each"><code class="computeroutput"><span class="identifier">for_each</span></code></a><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">increment</span><span class="special">());</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">vec</span> <span class="special">==</span> <a href="../../../container/generation/functions/make_vector.html" title="make_vector"><code class="computeroutput"><span class="identifier">make_vector</span></code></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">));</span>
|
||||
</pre>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
|
||||
Reference in New Issue
Block a user