1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>zip</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. Fusion 2.2"> 8<link rel="up" href="../functions.html" title="Functions"> 9<link rel="prev" href="join.html" title="join"> 10<link rel="next" href="pop_back.html" title="pop_back"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="join.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><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="pop_back.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="fusion.algorithm.transformation.functions.zip"></a><a class="link" href="zip.html" title="zip">zip</a> 28</h5></div></div></div> 29<h6> 30<a name="fusion.algorithm.transformation.functions.zip.h0"></a> 31 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.description"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.description">Description</a> 32 </h6> 33<p> 34 Zips sequences together to form a single sequence, whose members are 35 tuples of the members of the component sequences. 36 </p> 37<h6> 38<a name="fusion.algorithm.transformation.functions.zip.h1"></a> 39 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.synopsis"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.synopsis">Synopsis</a> 40 </h6> 41<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> 42 <span class="keyword">typename</span> <span class="identifier">Sequence1</span><span class="special">,</span> 43 <span class="keyword">typename</span> <span class="identifier">Sequence2</span><span class="special">,</span> 44 <span class="special">...</span> 45 <span class="keyword">typename</span> <span class="identifier">SequenceN</span> 46 <span class="special">></span> 47<span class="keyword">typename</span> <a class="link" href="../metafunctions/zip.html" title="zip"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">zip</span></code></a><span class="special"><</span><span class="identifier">Sequence1</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">Sequence2</span> <span class="keyword">const</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">SequenceN</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span> 48<span class="identifier">zip</span><span class="special">(</span><span class="identifier">Sequence1</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">seq1</span><span class="special">,</span> <span class="identifier">Sequence2</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">seq2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">SequenceN</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">seqN</span><span class="special">);</span> 49</pre> 50<div class="table"> 51<a name="fusion.algorithm.transformation.functions.zip.t0"></a><p class="title"><b>Table 1.81. Parameters</b></p> 52<div class="table-contents"><table class="table" summary="Parameters"> 53<colgroup> 54<col> 55<col> 56<col> 57</colgroup> 58<thead><tr> 59<th> 60 <p> 61 Parameter 62 </p> 63 </th> 64<th> 65 <p> 66 Requirement 67 </p> 68 </th> 69<th> 70 <p> 71 Description 72 </p> 73 </th> 74</tr></thead> 75<tbody><tr> 76<td> 77 <p> 78 <code class="computeroutput"><span class="identifier">seq1</span></code> to <code class="computeroutput"><span class="identifier">seqN</span></code> 79 </p> 80 </td> 81<td> 82 <p> 83 Each sequence is a model of <a class="link" href="../../../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward 84 Sequence</a>. 85 </p> 86 </td> 87<td> 88 <p> 89 Operation's argument 90 </p> 91 </td> 92</tr></tbody> 93</table></div> 94</div> 95<br class="table-break"><h6> 96<a name="fusion.algorithm.transformation.functions.zip.h2"></a> 97 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.expression_semantics"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.expression_semantics">Expression 98 Semantics</a> 99 </h6> 100<pre class="programlisting"><a class="link" href="zip.html" title="zip"><code class="computeroutput"><span class="identifier">zip</span></code></a><span class="special">(</span><span class="identifier">seq1</span><span class="special">,</span> <span class="identifier">seq2</span><span class="special">,</span> <span class="special">...</span> <span class="identifier">seqN</span><span class="special">);</span> 101</pre> 102<p> 103 <span class="bold"><strong>Return type</strong></span>: A model of <a class="link" href="../../../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward 104 Sequence</a>. 105 </p> 106<p> 107 <span class="bold"><strong>Semantics</strong></span>: Returns a sequence containing 108 tuples of elements from sequences <code class="computeroutput"><span class="identifier">seq1</span></code> 109 to <code class="computeroutput"><span class="identifier">seqN</span></code>. For example, 110 applying zip to tuples <code class="computeroutput"><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span></code> 111 and <code class="computeroutput"><span class="special">(</span><span class="char">'a'</span><span class="special">,</span> <span class="char">'b'</span><span class="special">,</span> 112 <span class="char">'c'</span><span class="special">)</span></code> 113 would return <code class="computeroutput"><span class="special">((</span><span class="number">1</span><span class="special">,</span> <span class="char">'a'</span><span class="special">),(</span><span class="number">2</span><span class="special">,</span> <span class="char">'b'</span><span class="special">),(</span><span class="number">3</span><span class="special">,</span> 114 <span class="char">'c'</span><span class="special">))</span></code> 115 </p> 116<h6> 117<a name="fusion.algorithm.transformation.functions.zip.h3"></a> 118 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.complexity"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.complexity">Complexity</a> 119 </h6> 120<p> 121 Constant. Returns a view which is lazily evaluated. 122 </p> 123<h6> 124<a name="fusion.algorithm.transformation.functions.zip.h4"></a> 125 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.header"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.header">Header</a> 126 </h6> 127<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">transformation</span><span class="special">/</span><span class="identifier">zip</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 128<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">zip</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 129</pre> 130<h6> 131<a name="fusion.algorithm.transformation.functions.zip.h5"></a> 132 <span class="phrase"><a name="fusion.algorithm.transformation.functions.zip.example"></a></span><a class="link" href="zip.html#fusion.algorithm.transformation.functions.zip.example">Example</a> 133 </h6> 134<pre class="programlisting"><a class="link" 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">char</span><span class="special">></span> <span class="identifier">v1</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'a'</span><span class="special">);</span> 135<a class="link" 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">char</span><span class="special">></span> <span class="identifier">v2</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="char">'b'</span><span class="special">);</span> 136<span class="identifier">assert</span><span class="special">(</span><a class="link" href="zip.html" title="zip"><code class="computeroutput"><span class="identifier">zip</span></code></a><span class="special">(</span><span class="identifier">v1</span><span class="special">,</span> <span class="identifier">v2</span><span class="special">)</span> <span class="special">==</span> <a class="link" 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><a class="link" 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">1</span><span class="special">,</span> <span class="number">2</span><span class="special">),</span><a class="link" 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="char">'a'</span><span class="special">,</span> <span class="char">'b'</span><span class="special">));</span> 137</pre> 138</div> 139<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 140<td align="left"></td> 141<td align="right"><div class="copyright-footer">Copyright © 2001-2006, 2011, 2012 Joel de Guzman, 142 Dan Marsden, Tobias Schwinger<p> 143 Distributed under the Boost Software License, Version 1.0. (See accompanying 144 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>) 145 </p> 146</div></td> 147</tr></table> 148<hr> 149<div class="spirit-nav"> 150<a accesskey="p" href="join.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><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="pop_back.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 151</div> 152</body> 153</html> 154
