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main.cpp.html
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<meta name="GENERATOR" content="GNU source-highlight 3.1.5
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<title>main.cpp</title>
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<pre><tt><i><font color="#9A1900">// main.cpp</font></i>
<b><font color="#000080">#include</font></b> <font color="#FF0000"><iostream></font>
<b><font color="#000080">#include</font></b> <font color="#FF0000"><time.h></font>
<b><font color="#000080">#include</font></b> <font color="#FF0000"><cstdlib></font>
<b><font color="#0000FF">using</font></b> <b><font color="#0000FF">namespace</font></b> std<font color="#990000">;</font>
<b><font color="#0000FF">extern</font></b> <font color="#FF0000">"C"</font> <font color="#009900">int</font> <b><font color="#000000">vecsum</font></b> <font color="#990000">(</font><font color="#009900">int</font> <font color="#990000">*,</font> <font color="#009900">int</font><font color="#990000">);</font>
<i><font color="#9A1900">// Purpose: This main program produces a vector of random</font></i>
<i><font color="#9A1900">// numbers between 0 and 99, then calls the</font></i>
<i><font color="#9A1900">// externally defined function 'vecsum' to add</font></i>
<i><font color="#9A1900">// up the elements of the vector.</font></i>
<i><font color="#9A1900">// Author: Adam Ferrari</font></i>
<font color="#009900">int</font> <b><font color="#000000">main</font></b> <font color="#990000">()</font> <font color="#FF0000">{</font>
<font color="#009900">int</font> n<font color="#990000">,</font> <font color="#990000">*</font>vec<font color="#990000">,</font> sum<font color="#990000">;</font>
cout <font color="#990000"><<</font> <font color="#FF0000">"Please enter a vector size: "</font><font color="#990000">;</font>
cin <font color="#990000">>></font> n<font color="#990000">;</font>
<i><font color="#9A1900">// sanity check the vector size</font></i>
<b><font color="#0000FF">if</font></b> <font color="#990000">(</font>n <font color="#990000"><=</font> <font color="#993399">0</font><font color="#990000">)</font> <font color="#FF0000">{</font>
cerr <font color="#990000"><<</font> <font color="#FF0000">"Vector size must be greater than zero.</font><font color="#CC33CC">\n</font><font color="#FF0000">"</font><font color="#990000">;</font>
<b><font color="#0000FF">return</font></b> <font color="#993399">1</font><font color="#990000">;</font>
<font color="#FF0000">}</font>
<i><font color="#9A1900">// allocate, initialize, and display vector</font></i>
vec <font color="#990000">=</font> <b><font color="#0000FF">new</font></b> <font color="#009900">int</font><font color="#990000">[</font>n<font color="#990000">];</font>
<i><font color="#9A1900">// use current time as random seed</font></i>
<b><font color="#000000">srand</font></b><font color="#990000">((</font><font color="#009900">unsigned</font><font color="#990000">)</font> <b><font color="#000000">time</font></b><font color="#990000">(</font>NULL<font color="#990000">));</font>
<b><font color="#0000FF">for</font></b> <font color="#990000">(</font><font color="#009900">int</font> i <font color="#990000">=</font> <font color="#993399">0</font><font color="#990000">;</font> i <font color="#990000"><</font> n<font color="#990000">;</font> <font color="#990000">++</font>i<font color="#990000">)</font> <font color="#FF0000">{</font>
vec<font color="#990000">[</font>i<font color="#990000">]</font> <font color="#990000">=</font> <b><font color="#000000">rand</font></b><font color="#990000">()</font> <font color="#990000">%</font> <font color="#993399">100</font><font color="#990000">;</font>
cout <font color="#990000"><<</font> <font color="#FF0000">"</font><font color="#CC33CC">\t</font><font color="#FF0000">vec["</font> <font color="#990000"><<</font> i <font color="#990000"><<</font> <font color="#FF0000">"] = "</font> <font color="#990000"><<</font> vec<font color="#990000">[</font>i<font color="#990000">]</font> <font color="#990000"><<</font> endl<font color="#990000">;</font>
<font color="#FF0000">}</font>
<i><font color="#9A1900">// sum up the vector and print out results</font></i>
sum <font color="#990000">=</font> <b><font color="#000000">vecsum</font></b><font color="#990000">(</font>vec<font color="#990000">,</font> n<font color="#990000">);</font>
cout <font color="#990000"><<</font> <font color="#FF0000">"The sum of all vector elements is "</font> <font color="#990000"><<</font> sum <font color="#990000"><<</font> endl<font color="#990000">;</font>
<b><font color="#0000FF">return</font></b> <font color="#993399">0</font><font color="#990000">;</font>
<font color="#FF0000">}</font>
</tt></pre>
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