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>transform_view</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="../view.html" title="View">
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<link rel="prev" href="zip_view.html" title="zip_view">
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@ -26,42 +26,39 @@
|
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<div class="titlepage"><div><div><h3 class="title">
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<a name="fusion.view.transform_view"></a><a href="transform_view.html" title="transform_view">transform_view</a></h3></div></div></div>
|
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<p>
|
||||
The unary version of <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
The unary version of <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
presents a view of its underlying sequence given a unary function object
|
||||
or function pointer. The binary version of <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
or function pointer. The binary version of <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
presents a view of 2 underlying sequences, given a binary function object
|
||||
or function pointer. The <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
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or function pointer. The <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
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inherits the traversal characteristics (see <a href="../sequence/concepts.html#fusion.sequence.concepts.traversal">Sequence
|
||||
Traversal Concept</a>) of its underlying sequence or sequences.
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||||
</p>
|
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<a name="fusion.view.transform_view.header"></a><h4>
|
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<a name="id570168"></a>
|
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<a name="id1140485"></a>
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<a href="transform_view.html#fusion.view.transform_view.header">Header</a>
|
||||
</h4>
|
||||
<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">view</span><span class="special">/</span><span class="identifier">transform_view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
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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">view</span><span class="special">/</span><span class="identifier">transform_view</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">transform_view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||||
</pre>
|
||||
<a name="fusion.view.transform_view.synopsis"></a><h4>
|
||||
<a name="id570326"></a>
|
||||
<a name="id1140623"></a>
|
||||
<a href="transform_view.html#fusion.view.transform_view.synopsis">Synopsis</a>
|
||||
</h4>
|
||||
<p>
|
||||
<span class="bold"><b>Unary Version</b></span>
|
||||
<span class="bold"><strong>Unary Version</strong></span>
|
||||
</p>
|
||||
<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">F1</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">F1</span><span class="special">></span>
|
||||
<span class="keyword">struct</span> <span class="identifier">transform_view</span><span class="special">;</span>
|
||||
</pre>
|
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<p>
|
||||
<span class="bold"><b>Binary Version</b></span>
|
||||
<span class="bold"><strong>Binary Version</strong></span>
|
||||
</p>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Sequence1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">F2</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">Sequence1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">F2</span><span class="special">></span>
|
||||
<span class="keyword">struct</span> <span class="identifier">transform_view</span><span class="special">;</span>
|
||||
</pre>
|
||||
<a name="fusion.view.transform_view.template_parameters"></a><h4>
|
||||
<a name="id570533"></a>
|
||||
<a name="id1140802"></a>
|
||||
<a href="transform_view.html#fusion.view.transform_view.template_parameters">Template parameters</a>
|
||||
</h4>
|
||||
<div class="informaltable"><table class="table">
|
||||
@ -91,7 +88,7 @@
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||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">Sequence</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -109,7 +106,7 @@
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||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">Sequence1</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">Sequence1</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -127,7 +124,7 @@
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||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">Sequence2</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">Sequence2</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
@ -145,14 +142,14 @@
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||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">F1</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">F1</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A unary function object or function pointer. <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">F1</span><span class="special">(</span><span class="identifier">E</span><span class="special">)>::</span><span class="identifier">type</span></tt> is the return type of an instance
|
||||
of <tt class="computeroutput"><span class="identifier">F1</span></tt> when called
|
||||
with a value of each element type <tt class="computeroutput"><span class="identifier">E</span></tt>
|
||||
A unary function object or function pointer. <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">F1</span><span class="special">(</span><span class="identifier">E</span><span class="special">)>::</span><span class="identifier">type</span></code> is the return type of an instance
|
||||
of <code class="computeroutput"><span class="identifier">F1</span></code> when called
|
||||
with a value of each element type <code class="computeroutput"><span class="identifier">E</span></code>
|
||||
in the input sequence.
|
||||
</p>
|
||||
</td>
|
||||
@ -164,14 +161,14 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">F2</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">F2</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A binary function object or function pointer. <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">F2</span><span class="special">(</span><span class="identifier">E1</span><span class="special">,</span> <span class="identifier">E2</span><span class="special">)>::</span><span class="identifier">type</span></tt> is the return type of an instance
|
||||
of <tt class="computeroutput"><span class="identifier">F2</span></tt> when called
|
||||
with a value of each corresponding pair of element type <tt class="computeroutput"><span class="identifier">E1</span></tt> and <tt class="computeroutput"><span class="identifier">E2</span></tt>
|
||||
A binary function object or function pointer. <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">F2</span><span class="special">(</span><span class="identifier">E1</span><span class="special">,</span> <span class="identifier">E2</span><span class="special">)>::</span><span class="identifier">type</span></code> is the return type of an instance
|
||||
of <code class="computeroutput"><span class="identifier">F2</span></code> when called
|
||||
with a value of each corresponding pair of element type <code class="computeroutput"><span class="identifier">E1</span></code> and <code class="computeroutput"><span class="identifier">E2</span></code>
|
||||
in the input sequences.
|
||||
</p>
|
||||
</td>
|
||||
@ -183,7 +180,7 @@
|
||||
</tbody>
|
||||
</table></div>
|
||||
<a name="fusion.view.transform_view.model_of"></a><h4>
|
||||
<a name="id570998"></a>
|
||||
<a name="id1141215"></a>
|
||||
<a href="transform_view.html#fusion.view.transform_view.model_of">Model of</a>
|
||||
</h4>
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||||
<div class="itemizedlist"><ul type="disc"><li>
|
||||
@ -200,49 +197,49 @@
|
||||
<div class="variablelist">
|
||||
<p class="title"><b>Notation</b></p>
|
||||
<dl>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">TV</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">TV</span></code></span></dt>
|
||||
<dd><p>
|
||||
A <tt class="computeroutput"><span class="identifier">transform_view</span></tt> type
|
||||
A <code class="computeroutput"><span class="identifier">transform_view</span></code> type
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">BTV</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">BTV</span></code></span></dt>
|
||||
<dd><p>
|
||||
A binary <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
A binary <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
type
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">UTV</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">UTV</span></code></span></dt>
|
||||
<dd><p>
|
||||
A unary <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
A unary <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
type
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f1</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">f1</span></code></span></dt>
|
||||
<dd><p>
|
||||
An instance of <tt class="computeroutput"><span class="identifier">F1</span></tt>
|
||||
An instance of <code class="computeroutput"><span class="identifier">F1</span></code>
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f2</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">f2</span></code></span></dt>
|
||||
<dd><p>
|
||||
An instance of <tt class="computeroutput"><span class="identifier">F2</span></tt>
|
||||
An instance of <code class="computeroutput"><span class="identifier">F2</span></code>
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">s</span></code></span></dt>
|
||||
<dd><p>
|
||||
An instance of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
|
||||
An instance of <code class="computeroutput"><span class="identifier">Sequence</span></code>
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s1</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">s1</span></code></span></dt>
|
||||
<dd><p>
|
||||
An instance of <tt class="computeroutput"><span class="identifier">Sequence1</span></tt>
|
||||
An instance of <code class="computeroutput"><span class="identifier">Sequence1</span></code>
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s2</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">s2</span></code></span></dt>
|
||||
<dd><p>
|
||||
An instance of <tt class="computeroutput"><span class="identifier">Sequence2</span></tt>
|
||||
An instance of <code class="computeroutput"><span class="identifier">Sequence2</span></code>
|
||||
</p></dd>
|
||||
<dt><span class="term"><tt class="computeroutput"><span class="identifier">tv</span></tt>,
|
||||
<tt class="computeroutput"><span class="identifier">tv2</span></tt></span></dt>
|
||||
<dt><span class="term"><code class="computeroutput"><span class="identifier">tv</span></code>,
|
||||
<code class="computeroutput"><span class="identifier">tv2</span></code></span></dt>
|
||||
<dd><p>
|
||||
Instances of <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
Instances of <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
</p></dd>
|
||||
</dl>
|
||||
</div>
|
||||
<a name="fusion.view.transform_view.expression_semantics"></a><h4>
|
||||
<a name="id571400"></a>
|
||||
<a name="id1141568"></a>
|
||||
<a href="transform_view.html#fusion.view.transform_view.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h4>
|
||||
@ -278,70 +275,69 @@
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">UTV</span><span class="special">(</span><span class="identifier">s</span><span class="special">,</span> <span class="identifier">f1</span><span class="special">)</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">UTV</span><span class="special">(</span><span class="identifier">s</span><span class="special">,</span> <span class="identifier">f1</span><span class="special">)</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Creates a unary <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
given sequence, <tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
and unary function object or function pointer, <tt class="computeroutput"><span class="identifier">f1</span></tt>.
|
||||
Creates a unary <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
given sequence, <code class="computeroutput"><span class="identifier">s</span></code>
|
||||
and unary function object or function pointer, <code class="computeroutput"><span class="identifier">f1</span></code>.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">BTV</span><span class="special">(</span><span class="identifier">s1</span><span class="special">,</span> <span class="identifier">s2</span><span class="special">,</span> <span class="identifier">f2</span><span class="special">)</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">BTV</span><span class="special">(</span><span class="identifier">s1</span><span class="special">,</span> <span class="identifier">s2</span><span class="special">,</span> <span class="identifier">f2</span><span class="special">)</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Creates a binary <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
given sequences, <tt class="computeroutput"><span class="identifier">s1</span></tt>
|
||||
and <tt class="computeroutput"><span class="identifier">s2</span></tt> and binary
|
||||
function object or function pointer, <tt class="computeroutput"><span class="identifier">f2</span></tt>.
|
||||
Creates a binary <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
given sequences, <code class="computeroutput"><span class="identifier">s1</span></code>
|
||||
and <code class="computeroutput"><span class="identifier">s2</span></code> and binary
|
||||
function object or function pointer, <code class="computeroutput"><span class="identifier">f2</span></code>.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">TV</span><span class="special">(</span><span class="identifier">tv</span><span class="special">)</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">TV</span><span class="special">(</span><span class="identifier">tv</span><span class="special">)</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Copy constructs a <tt class="computeroutput"><span class="identifier">transform_view</span></tt>
|
||||
from another <tt class="computeroutput"><span class="identifier">transform_view</span></tt>,
|
||||
<tt class="computeroutput"><span class="identifier">tv</span></tt>.
|
||||
Copy constructs a <code class="computeroutput"><span class="identifier">transform_view</span></code>
|
||||
from another <code class="computeroutput"><span class="identifier">transform_view</span></code>,
|
||||
<code class="computeroutput"><span class="identifier">tv</span></code>.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">tv</span> <span class="special">=</span>
|
||||
<span class="identifier">tv2</span></tt>
|
||||
<code class="computeroutput"><span class="identifier">tv</span> <span class="special">=</span>
|
||||
<span class="identifier">tv2</span></code>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Assigns to a <tt class="computeroutput"><span class="identifier">transform_view</span></tt>,
|
||||
<tt class="computeroutput"><span class="identifier">tv</span></tt>, from another
|
||||
<tt class="computeroutput"><span class="identifier">transform_view</span></tt>,
|
||||
<tt class="computeroutput"><span class="identifier">tv2</span></tt>.
|
||||
Assigns to a <code class="computeroutput"><span class="identifier">transform_view</span></code>,
|
||||
<code class="computeroutput"><span class="identifier">tv</span></code>, from another
|
||||
<code class="computeroutput"><span class="identifier">transform_view</span></code>,
|
||||
<code class="computeroutput"><span class="identifier">tv2</span></code>.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table></div>
|
||||
<a name="fusion.view.transform_view.example"></a><h4>
|
||||
<a name="id571879"></a>
|
||||
<a name="id1141992"></a>
|
||||
<a href="transform_view.html#fusion.view.transform_view.example">Example</a>
|
||||
</h4>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">struct</span> <span class="identifier">square</span>
|
||||
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">square</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">></span>
|
||||
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span>
|
||||
@ -358,7 +354,7 @@
|
||||
<span class="special">}</span>
|
||||
<span class="special">};</span>
|
||||
|
||||
<span class="keyword">typedef</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">short</span><span class="special">,</span> <span class="keyword">double</span><span class="special">></span> <span class="identifier">vector_type</span><span class="special">;</span>
|
||||
<span class="keyword">typedef</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">short</span><span class="special">,</span> <span class="keyword">double</span><span class="special">></span> <span class="identifier">vector_type</span><span class="special">;</span>
|
||||
<span class="identifier">vector_type</span> <span class="identifier">vec</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="number">5</span><span class="special">,</span> <span class="number">3.3</span><span class="special">);</span>
|
||||
|
||||
<span class="identifier">transform_view</span><span class="special"><</span><span class="identifier">vector_type</span><span class="special">,</span> <span class="identifier">square</span><span class="special">></span> <span class="identifier">transform</span><span class="special">(</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">square</span><span class="special">());</span>
|
||||
|
||||
Reference in New Issue
Block a user