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| <div class="section"> |
| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="range.reference.algorithms.mutating.remove_if"></a><a class="link" href="remove_if.html" title="remove_if"> remove_if</a> |
| </h5></div></div></div> |
| <a name="range.reference.algorithms.mutating.remove_if.prototype"></a><h6> |
| <a name="id805817"></a> |
| <a class="link" href="remove_if.html#range.reference.algorithms.mutating.remove_if.prototype">Prototype</a> |
| </h6> |
| <p> |
| |
| </p> |
| <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">UnaryPredicate</span> |
| <span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">ForwardRange</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="identifier">remove</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">UnaryPredicate</span> <span class="identifier">pred</span><span class="special">);</span> |
| |
| <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">UnaryPredicate</span> |
| <span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">ForwardRange</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="identifier">remove</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">UnaryPredicate</span> <span class="identifier">pred</span><span class="special">);</span> |
| |
| <span class="keyword">template</span><span class="special"><</span> |
| <span class="identifier">range_return_value</span> <span class="identifier">re</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">UnaryPredicate</span> |
| <span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">range_return</span><span class="special"><</span><span class="identifier">ForwardRange</span><span class="special">,</span><span class="identifier">re</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="identifier">remove</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">UnaryPredicate</span> <span class="identifier">pred</span><span class="special">);</span> |
| |
| <span class="keyword">template</span><span class="special"><</span> |
| <span class="identifier">range_return_value</span> <span class="identifier">re</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">UnaryPredicate</span> |
| <span class="special">></span> |
| <span class="keyword">typename</span> <span class="identifier">range_return</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">ForwardRange</span><span class="special">,</span><span class="identifier">re</span><span class="special">>::</span><span class="identifier">type</span> |
| <span class="identifier">remove</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">UnaryPredicate</span> <span class="identifier">pred</span><span class="special">);</span> |
| </pre> |
| <p> |
| </p> |
| <a name="range.reference.algorithms.mutating.remove_if.description"></a><h6> |
| <a name="id806381"></a> |
| <a class="link" href="remove_if.html#range.reference.algorithms.mutating.remove_if.description">Description</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="identifier">remove_if</span></code> removes from |
| <code class="computeroutput"><span class="identifier">rng</span></code> all of the elements |
| <code class="computeroutput"><span class="identifier">x</span></code> for which <code class="computeroutput"><span class="identifier">pred</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code> |
| is <code class="computeroutput"><span class="keyword">true</span></code>. The versions of |
| <code class="computeroutput"><span class="identifier">remove_if</span></code> that return |
| an iterator, return an iterator <code class="computeroutput"><span class="identifier">new_last</span></code> |
| such that the range <code class="computeroutput"><span class="special">[</span><span class="identifier">begin</span><span class="special">(</span><span class="identifier">rng</span><span class="special">),</span> <span class="identifier">new_last</span><span class="special">)</span></code> contains no elements where <code class="computeroutput"><span class="identifier">pred</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code> |
| is <code class="computeroutput"><span class="keyword">true</span></code>. The iterators in |
| the range <code class="computeroutput"><span class="special">[</span><span class="identifier">new_last</span><span class="special">,</span> <span class="identifier">end</span><span class="special">(</span><span class="identifier">rng</span><span class="special">))</span></code> are dereferenceable, but the elements |
| are unspecified. |
| </p> |
| <a name="range.reference.algorithms.mutating.remove_if.definition"></a><h6> |
| <a name="id806604"></a> |
| <a class="link" href="remove_if.html#range.reference.algorithms.mutating.remove_if.definition">Definition</a> |
| </h6> |
| <p> |
| 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">remove_if</span><span class="special">.</span><span class="identifier">hpp</span></code> |
| </p> |
| <a name="range.reference.algorithms.mutating.remove_if.requirements"></a><h6> |
| <a name="id806676"></a> |
| <a class="link" href="remove_if.html#range.reference.algorithms.mutating.remove_if.requirements">Requirements</a> |
| </h6> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">ForwardRange</span></code> is a |
| model of the <a class="link" href="../../../concepts/forward_range.html" title="Forward Range">Forward |
| Range</a> Concept. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">ForwardRange</span></code> is mutable. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">UnaryPredicate</span></code> is |
| a model of the <code class="computeroutput"><span class="identifier">PredicateConcept</span></code>. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">ForwardRange</span></code>'s value |
| type is convertible to <code class="computeroutput"><span class="identifier">UnaryPredicate</span></code>'s |
| argument type. |
| </li> |
| </ul></div> |
| <a name="range.reference.algorithms.mutating.remove_if.complexity"></a><h6> |
| <a name="id806800"></a> |
| <a class="link" href="remove_if.html#range.reference.algorithms.mutating.remove_if.complexity">Complexity</a> |
| </h6> |
| <p> |
| Linear. <code class="computeroutput"><span class="identifier">remove_if</span></code> performs |
| exactly <code class="computeroutput"><span class="identifier">distance</span><span class="special">(</span><span class="identifier">rng</span><span class="special">)</span></code> |
| applications of <code class="computeroutput"><span class="identifier">pred</span></code>. |
| </p> |
| </div> |
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| <td align="right"><div class="copyright-footer">Copyright © 2003 -2010 Thorsten Ottosen, Neil Groves<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 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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