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<a href="#nested-classes">Data Structures</a> &#124;
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<h1>pyramid_of_numbers.c File Reference</h1> </div>
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<div class="contents">
<code>#include &lt;stdio.h&gt;</code><br/>
<div class="dynheader">
Include dependency graph for pyramid_of_numbers.c:</div>
<div class="dyncontent">
<div class="center"><img src="pyramid__of__numbers_8c__incl.png" border="0" usemap="#pyramid__of__numbers_8c" alt=""/></div>
<map name="pyramid__of__numbers_8c" id="pyramid__of__numbers_8c">
</map>
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<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_big_int.html">BigInt</a></td></tr>
<tr><td colspan="2"><h2><a name="define-members"></a>
Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#a001791a21d538b8b9176287ae60d9b61">MAX_DIGITS</a>&nbsp;&nbsp;&nbsp;80</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">The maximum number of digits allowed in a big int. <a href="#a001791a21d538b8b9176287ae60d9b61"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#a2e54fded1d9a2c96d974dbc649ddaf45">strtobig_int</a> (const char *str, int len, struct <a class="el" href="struct_big_int.html">BigInt</a> *big_int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#af0be586b37f410669437da99f1e62a4e">print_big_int</a> (const struct <a class="el" href="struct_big_int.html">BigInt</a> *big_int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#a98526606783facc829f03ee93d25a6ec">multiply</a> (const struct <a class="el" href="struct_big_int.html">BigInt</a> *big_int, int factor, struct <a class="el" href="struct_big_int.html">BigInt</a> *big_result)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#a83c208b490dc545cc8eaafe48a52b2ad">divide</a> (const struct <a class="el" href="struct_big_int.html">BigInt</a> *big_int, int divisor, struct <a class="el" href="struct_big_int.html">BigInt</a> *big_result)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#afc0bd0ac07f86448f1637a09d0d314bf">copy_big_int</a> (const struct <a class="el" href="struct_big_int.html">BigInt</a> *from, struct <a class="el" href="struct_big_int.html">BigInt</a> *to)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pyramid__of__numbers_8c.html#a0ddf1224851353fc92bfbff6f499fa97">main</a> (int argc, char *argv[])</td></tr>
</table>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="a001791a21d538b8b9176287ae60d9b61"></a><!-- doxytag: member="pyramid_of_numbers.c::MAX_DIGITS" ref="a001791a21d538b8b9176287ae60d9b61" args="" -->
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<td class="memname">#define MAX_DIGITS&nbsp;&nbsp;&nbsp;80</td>
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</div>
<div class="memdoc">
<p>The maximum number of digits allowed in a big int. </p>
</div>
</div>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="afc0bd0ac07f86448f1637a09d0d314bf"></a><!-- doxytag: member="pyramid_of_numbers.c::copy_big_int" ref="afc0bd0ac07f86448f1637a09d0d314bf" args="(const struct BigInt *from, struct BigInt *to)" -->
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<td class="memname">void copy_big_int </td>
<td>(</td>
<td class="paramtype">const struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>from</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>to</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="pyramid__of__numbers_8c.html#afc0bd0ac07f86448f1637a09d0d314bf">copy_big_int()</a> copies a <a class="el" href="struct_big_int.html">BigInt</a> to another <a class="el" href="struct_big_int.html">BigInt</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>from</em>&nbsp;</td><td>The source where we want to copy from. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>*to</em>&nbsp;</td><td>The target where we want to copy to. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a83c208b490dc545cc8eaafe48a52b2ad"></a><!-- doxytag: member="pyramid_of_numbers.c::divide" ref="a83c208b490dc545cc8eaafe48a52b2ad" args="(const struct BigInt *big_int, int divisor, struct BigInt *big_result)" -->
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<div class="memproto">
<table class="memname">
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<td class="memname">void divide </td>
<td>(</td>
<td class="paramtype">const struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_int</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"> <em>divisor</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_result</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="pyramid__of__numbers_8c.html#a83c208b490dc545cc8eaafe48a52b2ad">divide()</a> multiplies a <a class="el" href="struct_big_int.html">BigInt</a> by an int. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>big_int</em>&nbsp;</td><td>The <a class="el" href="struct_big_int.html">BigInt</a> to be divided. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>divisor</em>&nbsp;</td><td>The int value by which we want to devide big_int. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>*big_result</em>&nbsp;</td><td>The result of the division. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a0ddf1224851353fc92bfbff6f499fa97"></a><!-- doxytag: member="pyramid_of_numbers.c::main" ref="a0ddf1224851353fc92bfbff6f499fa97" args="(int argc, char *argv[])" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">int main </td>
<td>(</td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"> <em>argc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&nbsp;</td>
<td class="paramname"> <em>argv</em>[]</td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="pyramid__of__numbers_8c.html#a0ddf1224851353fc92bfbff6f499fa97">main()</a> reads the base number from which the pyramid has to be calculated into an array of char. The max. length of this number is MAX_DIGITS. The number is checked to contain only digits. If not the program exits. Then the inputted number is converted into a big int by calling the function <a class="el" href="pyramid__of__numbers_8c.html#a2e54fded1d9a2c96d974dbc649ddaf45">strtobig_int()</a>. After the conversion the tower is calculated by calling the functions <a class="el" href="pyramid__of__numbers_8c.html#a98526606783facc829f03ee93d25a6ec">multiply()</a>, <a class="el" href="pyramid__of__numbers_8c.html#af0be586b37f410669437da99f1e62a4e">print_big_int()</a>, and <a class="el" href="pyramid__of__numbers_8c.html#afc0bd0ac07f86448f1637a09d0d314bf">copy_big_int()</a> consecutively from 2 to 9 and then again with <a class="el" href="pyramid__of__numbers_8c.html#a83c208b490dc545cc8eaafe48a52b2ad">divide()</a> instead of <a class="el" href="pyramid__of__numbers_8c.html#a98526606783facc829f03ee93d25a6ec">multiply()</a> from 2 to 9. </p>
</div>
</div>
<a class="anchor" id="a98526606783facc829f03ee93d25a6ec"></a><!-- doxytag: member="pyramid_of_numbers.c::multiply" ref="a98526606783facc829f03ee93d25a6ec" args="(const struct BigInt *big_int, int factor, struct BigInt *big_result)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void multiply </td>
<td>(</td>
<td class="paramtype">const struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_int</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"> <em>factor</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_result</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="pyramid__of__numbers_8c.html#a98526606783facc829f03ee93d25a6ec">multiply()</a> multiplies a <a class="el" href="struct_big_int.html">BigInt</a> by an int. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>big_int</em>&nbsp;</td><td>The <a class="el" href="struct_big_int.html">BigInt</a> to be multiplied. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>factor</em>&nbsp;</td><td>The int value which is multiplied by <a class="el" href="struct_big_int.html">BigInt</a>. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>*big_result</em>&nbsp;</td><td>The result of the multiplication. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="af0be586b37f410669437da99f1e62a4e"></a><!-- doxytag: member="pyramid_of_numbers.c::print_big_int" ref="af0be586b37f410669437da99f1e62a4e" args="(const struct BigInt *big_int)" -->
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<td class="memname">void print_big_int </td>
<td>(</td>
<td class="paramtype">const struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_int</em></td>
<td>&nbsp;)&nbsp;</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="pyramid__of__numbers_8c.html#af0be586b37f410669437da99f1e62a4e">print_big_int()</a> prints a <a class="el" href="struct_big_int.html">BigInt</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>*big_int</em>&nbsp;</td><td>The <a class="el" href="struct_big_int.html">BigInt</a> to be printed. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a2e54fded1d9a2c96d974dbc649ddaf45"></a><!-- doxytag: member="pyramid_of_numbers.c::strtobig_int" ref="a2e54fded1d9a2c96d974dbc649ddaf45" args="(const char *str, int len, struct BigInt *big_int)" -->
<div class="memitem">
<div class="memproto">
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<tr>
<td class="memname">int strtobig_int </td>
<td>(</td>
<td class="paramtype">const char *&nbsp;</td>
<td class="paramname"> <em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&nbsp;</td>
<td class="paramname"> <em>len</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="struct_big_int.html">BigInt</a> *&nbsp;</td>
<td class="paramname"> <em>big_int</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>strtobig_int converts a string into a <a class="el" href="struct_big_int.html">BigInt</a>. If strtobig_int runs against a character not between '0' and '9' the conversion stops at this point. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>*str</em>&nbsp;</td><td>The string to be converted. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>len</em>&nbsp;</td><td>Number of characters in string to be converted. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>*big_int</em>&nbsp;</td><td>The converted string now as <a class="el" href="struct_big_int.html">BigInt</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>The number of characters converted. </dd></dl>
</div>
</div>
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