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<span class="bchead">You are here: </span><a href="../../start.html" title="start">C++ Reference</a> » <a href="../../stl/start.html" title="stl:start">C++ Standard Template Library</a> » <a href="../../stl/stack/start.html" title="stl:stack:start">C++ Stacks</a> » <a href="../../stl/stack/top.html" title="stl:stack:top">top</a> </div>
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<h2><a name="top" id="top">top</a></h2>
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<p>
Syntax:
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<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <stack></span>
TYPE<span class="sy0">&</span> top<span class="br0">(</span><span class="br0">)</span><span class="sy0">;</span>
<span class="kw4">const</span> TYPE<span class="sy0">&</span> top<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span><span class="sy0">;</span></pre>
<p>
The function top() returns a reference to the top element of the stack.
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For example, the following code removes all of the elements from a stack and
uses top() to display them:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="kw1">while</span><span class="br0">(</span> <span class="sy0">!</span>s.<span class="me1">empty</span><span class="br0">(</span><span class="br0">)</span> <span class="br0">)</span> <span class="br0">{</span>
<a href="http://www.opengroup.org/onlinepubs/009695399/functions/cout.html"><span class="kw3">cout</span></a> <span class="sy0"><<</span> s.<span class="me1">top</span><span class="br0">(</span><span class="br0">)</span> <span class="sy0"><<</span> <span class="st0">" "</span><span class="sy0">;</span>
s.<span class="me1">pop</span><span class="br0">(</span><span class="br0">)</span><span class="sy0">;</span>
<span class="br0">}</span></pre>
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Related Topics: <a href="../../stl/stack/pop.html" class="wikilink1" title="stl:stack:pop">pop</a>
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