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size [C++ Reference]
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<h2><a name="size" id="size">size</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <valarray></span>
size_t size<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span><span class="sy0">;</span></pre>
<p>
The size() function returns the number of elements in the valarray.
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <valarray></span>
<span class="co2">#include <iostream></span>
<span class="kw4">const</span> <span class="kw4">int</span> vd<span class="br0">[</span><span class="br0">]</span> <span class="sy0">=</span> <span class="br0">{</span>1<span class="sy0">,</span>2<span class="sy0">,</span>3<span class="sy0">,</span>4<span class="sy0">,</span>5<span class="br0">}</span><span class="sy0">;</span>
std<span class="sy0">::</span><span class="me2">valarray</span><span class="sy0"><</span>int<span class="sy0">></span> v1<span class="br0">(</span>vd<span class="sy0">,</span>5<span class="br0">)</span><span class="sy0">;</span>
std<span class="sy0">::</span><a href="http://www.opengroup.org/onlinepubs/009695399/functions/cout.html"><span class="kw3">cout</span></a> <span class="sy0"><<</span> v1.<span class="me1">size</span><span class="br0">(</span><span class="br0">)</span> <span class="sy0"><<</span> std<span class="sy0">::</span><span class="me2">endl</span><span class="sy0">;</span></pre>
<p>
Will produce this output:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="nu0">5</span></pre>
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