1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Function template make_transform_iterator</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. 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class="refsynopsisdiv-title">Synopsis</h2> 32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../boost_compute/reference.html#header.boost.compute.iterator.transform_iterator_hpp" title="Header <boost/compute/iterator/transform_iterator.hpp>">boost/compute/iterator/transform_iterator.hpp</a>> 33 34</span> 35<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> InputIterator<span class="special">,</span> <span class="keyword">typename</span> UnaryFunction<span class="special">></span> 36 <a class="link" href="transform_iterator.html" title="Class template transform_iterator">transform_iterator</a><span class="special"><</span> <span class="identifier">InputIterator</span><span class="special">,</span> <span class="identifier">UnaryFunction</span> <span class="special">></span> 37 <span class="identifier">make_transform_iterator</span><span class="special">(</span><span class="identifier">InputIterator</span> iterator<span class="special">,</span> <span class="identifier">UnaryFunction</span> transform<span class="special">)</span><span class="special">;</span></pre></div> 38<div class="refsect1"> 39<a name="idm45849506102416"></a><h2>Description</h2> 40<p>Returns a <code class="computeroutput"><a class="link" href="transform_iterator.html" title="Class template transform_iterator">transform_iterator</a></code> for <code class="computeroutput">iterator</code> with <code class="computeroutput">transform</code>.</p> 41<p> 42 43For example, to create an iterator which returns the square-root of each value in a <code class="computeroutput">vector<int></code>: </p> 44<pre class="programlisting"><span class="keyword">auto</span> <span class="identifier">sqrt_iterator</span> <span class="special">=</span> <span class="identifier">make_transform_iterator</span><span class="special">(</span><span class="identifier">vec</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> <span class="identifier">sqrt</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span> 45</pre> 46<p> </p> 47<div class="variablelist"><table border="0" class="variablelist compact"> 48<colgroup> 49<col align="left" valign="top"> 50<col> 51</colgroup> 52<tbody> 53<tr> 54<td><p><span class="term">Parameters:</span></p></td> 55<td><div class="variablelist"><table border="0" class="variablelist compact"> 56<colgroup> 57<col align="left" valign="top"> 58<col> 59</colgroup> 60<tbody> 61<tr> 62<td><p><span class="term"><code class="computeroutput">iterator</code></span></p></td> 63<td><p>the underlying iterator </p></td> 64</tr> 65<tr> 66<td><p><span class="term"><code class="computeroutput">transform</code></span></p></td> 67<td><p>the unary transform function</p></td> 68</tr> 69</tbody> 70</table></div></td> 71</tr> 72<tr> 73<td><p><span class="term">Returns:</span></p></td> 74<td><p>a <code class="computeroutput"><a class="link" href="transform_iterator.html" title="Class template transform_iterator">transform_iterator</a></code> for <code class="computeroutput">iterator</code> with <code class="computeroutput">transform</code> </p></td> 75</tr> 76</tbody> 77</table></div> 78</div> 79</div> 80<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 81<td align="left"></td> 82<td align="right"><div class="copyright-footer">Copyright © 2013, 2014 Kyle Lutz<p> 83 Distributed under the Boost Software License, Version 1.0. (See accompanying 84 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 85 </p> 86</div></td> 87</tr></table> 88<hr> 89<div class="spirit-nav"> 90<a accesskey="p" href="transform_iterator.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_compute/reference.html#header.boost.compute.iterator.transform_iterator_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="zip_iterator.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 91</div> 92</body> 93</html> 94
