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test_abs.cpp.html
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test_abs.cpp.html
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<!DOCTYPE HTML>
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<meta name="GENERATOR" content="GNU source-highlight
by Lorenzo Bettini
http://www.lorenzobettini.it
http://www.gnu.org/software/src-highlite">
<title>test_abs.cpp</title>
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<pre><b><span style="color:#000080">#include</span></b> <span style="color:#FF0000"><iostream></span>
<b><span style="color:#0000FF">using</span></b> <b><span style="color:#0000FF">namespace</span></b> std<span style="color:#990000">;</span>
<b><span style="color:#0000FF">extern</span></b> <span style="color:#FF0000">"C"</span> <span style="color:#009900">long</span> <b><span style="color:#000000">absolute_value</span></b><span style="color:#990000">(</span><span style="color:#009900">long</span> x<span style="color:#990000">);</span>
<span style="color:#009900">long</span> <b><span style="color:#000000">absolute_value</span></b><span style="color:#990000">(</span><span style="color:#009900">long</span> x<span style="color:#990000">)</span> <span style="color:#FF0000">{</span>
<b><span style="color:#0000FF">if</span></b> <span style="color:#990000">(</span>x<span style="color:#990000"><</span><span style="color:#993399">0</span><span style="color:#990000">)</span> <i><span style="color:#9A1900">// if x is negative</span></i>
x <span style="color:#990000">=</span> <span style="color:#990000">-</span>x<span style="color:#990000">;</span> <i><span style="color:#9A1900">// negate x</span></i>
<b><span style="color:#0000FF">return</span></b> x<span style="color:#990000">;</span> <i><span style="color:#9A1900">// return x</span></i>
<span style="color:#FF0000">}</span>
<span style="color:#009900">int</span> <b><span style="color:#000000">main</span></b><span style="color:#990000">()</span> <span style="color:#FF0000">{</span>
<span style="color:#009900">long</span> theValue<span style="color:#990000">=</span><span style="color:#993399">0</span><span style="color:#990000">;</span>
cout <span style="color:#990000"><<</span> <span style="color:#FF0000">"Enter a value: "</span> <span style="color:#990000"><<</span> endl<span style="color:#990000">;</span>
cin <span style="color:#990000">>></span> theValue<span style="color:#990000">;</span>
<span style="color:#009900">long</span> theResult <span style="color:#990000">=</span> <b><span style="color:#000000">absolute_value</span></b><span style="color:#990000">(</span>theValue<span style="color:#990000">);</span>
cout <span style="color:#990000"><<</span> <span style="color:#FF0000">"The result is: "</span> <span style="color:#990000"><<</span> theResult <span style="color:#990000"><<</span> endl<span style="color:#990000">;</span>
<b><span style="color:#0000FF">return</span></b> <span style="color:#993399">0</span><span style="color:#990000">;</span>
<span style="color:#FF0000">}</span>
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