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121 lines
8.6 KiB
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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<title>generate</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.75.1">
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<link rel="home" href="../../../../index.html" title="Chapter 1. Range 2.0">
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</div>
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<div class="section" title="generate">
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<div class="titlepage"><div><div><h5 class="title">
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<a name="range.reference.algorithms.mutating.generate"></a><a class="link" href="generate.html" title="generate"> generate</a>
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</h5></div></div></div>
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<a name="range.reference.algorithms.mutating.generate.prototype"></a><h6>
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<a name="id2725153"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.prototype">Prototype</a>
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</h6>
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<p>
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</p>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">ForwardRange</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Generator</span><span class="special">></span>
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<span class="identifier">ForwardRange</span><span class="special">&</span> <span class="identifier">generate</span><span class="special">(</span> <span class="identifier">ForwardRange</span><span class="special">&</span> <span class="identifier">rng</span><span class="special">,</span> <span class="identifier">Generator</span> <span class="identifier">gen</span> <span class="special">);</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">ForwardRange</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Generator</span><span class="special">></span>
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<span class="keyword">const</span> <span class="identifier">ForwardRange</span><span class="special">&</span> <span class="identifier">generate</span><span class="special">(</span> <span class="keyword">const</span> <span class="identifier">ForwardRange</span><span class="special">&</span> <span class="identifier">rng</span><span class="special">,</span> <span class="identifier">Generator</span> <span class="identifier">gen</span> <span class="special">);</span>
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</pre>
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<p>
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</p>
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<a name="range.reference.algorithms.mutating.generate.description"></a><h6>
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<a name="id2725395"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.description">Description</a>
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</h6>
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<p>
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<code class="computeroutput"><span class="identifier">generate</span></code> assigns the
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result of <code class="computeroutput"><span class="identifier">gen</span><span class="special">()</span></code>
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to each element in range <code class="computeroutput"><span class="identifier">rng</span></code>.
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Returns the resultant range.
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</p>
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<a name="range.reference.algorithms.mutating.generate.definition"></a><h6>
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<a name="id2725458"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.definition">Definition</a>
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</h6>
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<p>
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Defined in the header file <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">range</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">generate</span><span class="special">.</span><span class="identifier">hpp</span></code>
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</p>
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<a name="range.reference.algorithms.mutating.generate.requirements"></a><h6>
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<a name="id2725530"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.requirements">Requirements</a>
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</h6>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
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<li class="listitem">
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<code class="computeroutput"><span class="identifier">ForwardRange</span></code> is a model
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of the <a class="link" href="../../../concepts/forward_range.html" title="Forward Range">Forward Range</a>
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Concept.
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</li>
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<li class="listitem">
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<code class="computeroutput"><span class="identifier">ForwardRange</span></code> is mutable.
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</li>
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<li class="listitem">
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<code class="computeroutput"><span class="identifier">Generator</span></code> is a model
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of the <code class="computeroutput"><span class="identifier">GeneratorConcept</span></code>.
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</li>
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<li class="listitem">
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The <code class="computeroutput"><span class="identifier">value_type</span></code> of
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<code class="computeroutput"><span class="identifier">SinglePassRange</span></code> is
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convertible to a type in <code class="computeroutput"><span class="identifier">OutputIterator</span></code>'s
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set of value types.
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</li>
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</ul></div>
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<a name="range.reference.algorithms.mutating.generate.precondition_"></a><h6>
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<a name="id2725655"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.precondition_">Precondition:</a>
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</h6>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
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<li class="listitem">
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<code class="computeroutput"><span class="identifier">out_it</span></code> is not an iterator
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within <code class="computeroutput"><span class="identifier">rng</span></code>.
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</li>
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<li class="listitem">
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<code class="computeroutput"><span class="special">[</span><span class="identifier">out_it</span><span class="special">,</span> <span class="identifier">out_it</span>
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<span class="special">+</span> <span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng</span><span class="special">))</span></code> is a valid range.
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</li>
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</ul></div>
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<a name="range.reference.algorithms.mutating.generate.complexity"></a><h6>
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<a name="id2725758"></a>
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<a class="link" href="generate.html#range.reference.algorithms.mutating.generate.complexity">Complexity</a>
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</h6>
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<p>
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Linear. Exactly <code class="computeroutput"><span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng</span><span class="special">)</span></code> assignments are performed.
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</p>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2003 -2010 Thorsten Ottosen, Neil Groves<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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>)
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</p>
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