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resize [C++ Reference]
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<h2><a name="resize" id="resize">resize</a></h2>
<div class="level2">
<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <vector></span>
<span class="kw4">void</span> resize<span class="br0">(</span> size_type num<span class="sy0">,</span> TYPE val <span class="sy0">=</span> TYPE<span class="br0">(</span><span class="br0">)</span> <span class="br0">)</span><span class="sy0">;</span></pre>
<p>
The function resize() changes the size of the vector to <code>num</code>. If <code>val</code> is
specified then any newly-created elements will be initialized to have a value
of <code>val</code>. The contents of the vector up to <code>num</code> will remain unchanged.
</p>
<p>
Example:
</p>
<pre class="c code c++" style="font-family:monospace;"> vector<span class="sy0"><</span>int<span class="sy0">></span> v<span class="sy0">;</span>
<span class="kw1">for</span><span class="br0">(</span> <span class="kw4">int</span> i <span class="sy0">=</span> <span class="nu0">0</span><span class="sy0">;</span> i <span class="sy0"><</span> <span class="nu0">10</span><span class="sy0">;</span> <span class="sy0">++</span>i <span class="br0">)</span> v.<span class="me1">push_back</span><span class="br0">(</span>i<span class="br0">)</span><span class="sy0">;</span>
v.<span class="me1">resize</span><span class="br0">(</span> 20<span class="sy0">,</span> 0 <span class="br0">)</span><span class="sy0">;</span> <span class="co1">// adds an additional 10 zeros to the end of v</span></pre>
<p>
This function runs in <a href="../../complexity.html" class="wikilink1" title="complexity">linear time</a>.
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Related Topics: <a href="../../stl/vector/vector.html" class="wikilink1" title="stl:vector:vector_constructors">Vector constructors</a>, <a href="../../stl/vector/capacity.html" class="wikilink1" title="stl:vector:capacity">capacity</a>, <a href="../../stl/vector/size.html" class="wikilink1" title="stl:vector:size">size</a>
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