OpenSoure_Repos/TheAlgorithms-C
1
0
Fork 0
mirror of https://github.moeyy.xyz/https://github.com/TheAlgorithms/C.git synced 2023-10-11 15:56:24 +08:00
Code Issues Packages Projects Releases Wiki Activity
d0bd30e123
TheAlgorithms-C/d6/d3d/factorial__large__number_8c.html
github-actions c913d6795e Documentation for 8914128e13
2020-06-28 20:40:24 +00:00

281 lines
20 KiB
HTML
Raw Blame History

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.18"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Algorithms_in_C: misc/factorial_large_number.c File Reference</title>
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../jquery.js"></script>
<script type="text/javascript" src="../../dynsections.js"></script>
<link href="../../navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../resize.js"></script>
<script type="text/javascript" src="../../navtreedata.js"></script>
<script type="text/javascript" src="../../navtree.js"></script>
<link href="../../search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../search/searchdata.js"></script>
<script type="text/javascript" src="../../search/search.js"></script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"],
jax: ["input/TeX","output/HTML-CSS"],
});
</script>
<script type="text/javascript" async="async" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML/MathJax.js"></script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Algorithms_in_C
&#160;<span id="projectnumber">1.0.0</span>
</div>
<div id="projectbrief">Set of algorithms implemented in C.</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.18 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "../../search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="../../menudata.js"></script>
<script type="text/javascript" src="../../menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('../../',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('d6/d3d/factorial__large__number_8c.html','../../'); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="summary">
<a href="#nested-classes">Data Structures</a> &#124;
<a href="#typedef-members">Typedefs</a> &#124;
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">factorial_large_number.c File Reference</div> </div>
</div><!--header-->
<div class="contents">
<p>Compute factorial of arbitrarily large numbers by storing individual digits in a byte.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;stdio.h&gt;</code><br />
<code>#include &lt;stdlib.h&gt;</code><br />
<code>#include &lt;time.h&gt;</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for factorial_large_number.c:</div>
<div class="dyncontent">
<div class="center"><iframe scrolling="no" frameborder="0" src="../../df/db0/factorial__large__number_8c__incl.svg" width="243" height="127"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
</div>
</div>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d5a/struct__large__num.html">_large_num</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">dynamically large number <a href="../../d3/d5a/struct__large__num.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ab54882961780c41a4929a6d390f6522d"><td class="memItemLeft" align="right" valign="top"><a id="ab54882961780c41a4929a6d390f6522d"></a>
typedef struct <a class="el" href="../../d3/d5a/struct__large__num.html">_large_num</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a></td></tr>
<tr class="memdesc:ab54882961780c41a4929a6d390f6522d"><td class="mdescLeft">&#160;</td><td class="mdescRight">dynamically large number <br /></td></tr>
<tr class="separator:ab54882961780c41a4929a6d390f6522d"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ad8101f58545bd891ae8b6e11caadd7eb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ad8101f58545bd891ae8b6e11caadd7eb">new_number</a> (void)</td></tr>
<tr class="memdesc:ad8101f58545bd891ae8b6e11caadd7eb"><td class="mdescLeft">&#160;</td><td class="mdescRight">create a new large number <a href="../../d6/d3d/factorial__large__number_8c.html#ad8101f58545bd891ae8b6e11caadd7eb">More...</a><br /></td></tr>
<tr class="separator:ad8101f58545bd891ae8b6e11caadd7eb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab5c854e0df76165c31899e69eceeeaae"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae">delete_number</a> (<a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *num)</td></tr>
<tr class="memdesc:ab5c854e0df76165c31899e69eceeeaae"><td class="mdescLeft">&#160;</td><td class="mdescRight">delete all memory allocated for large number <a href="../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae">More...</a><br /></td></tr>
<tr class="separator:ab5c854e0df76165c31899e69eceeeaae"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af2869d36c22a2b8f93d3166a84e124b3"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3">add_digit</a> (<a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *num, unsigned int value)</td></tr>
<tr class="memdesc:af2869d36c22a2b8f93d3166a84e124b3"><td class="mdescLeft">&#160;</td><td class="mdescRight">add a digit to the large number <a href="../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3">More...</a><br /></td></tr>
<tr class="separator:af2869d36c22a2b8f93d3166a84e124b3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad398ddbd594ca69a5e6dfc894925341e"><td class="memItemLeft" align="right" valign="top"><a id="ad398ddbd594ca69a5e6dfc894925341e"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ad398ddbd594ca69a5e6dfc894925341e">multiply</a> (<a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *num, unsigned long n)</td></tr>
<tr class="memdesc:ad398ddbd594ca69a5e6dfc894925341e"><td class="mdescLeft">&#160;</td><td class="mdescRight">multiply large number with another integer and store the result in the same large number <br /></td></tr>
<tr class="separator:ad398ddbd594ca69a5e6dfc894925341e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0ddf1224851353fc92bfbff6f499fa97"><td class="memItemLeft" align="right" valign="top"><a id="a0ddf1224851353fc92bfbff6f499fa97"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#a0ddf1224851353fc92bfbff6f499fa97">main</a> (int argc, char *argv[])</td></tr>
<tr class="memdesc:a0ddf1224851353fc92bfbff6f499fa97"><td class="mdescLeft">&#160;</td><td class="mdescRight">main function <br /></td></tr>
<tr class="separator:a0ddf1224851353fc92bfbff6f499fa97"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Compute factorial of arbitrarily large numbers by storing individual digits in a byte. </p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/kvedala">Krishna Vedala</a> </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="af2869d36c22a2b8f93d3166a84e124b3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af2869d36c22a2b8f93d3166a84e124b3">&#9670;&nbsp;</a></span>add_digit()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void add_digit </td>
<td>(</td>
<td class="paramtype"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *&#160;</td>
<td class="paramname"><em>num</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int&#160;</td>
<td class="paramname"><em>value</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>add a digit to the large number </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">num</td><td></td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>value of the digit to insert </td></tr>
</table>
</dd>
</dl>
<div class="fragment"><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;{</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">if</span> (value &gt; 9)</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; fprintf(stderr, <span class="stringliteral">&quot;digit &gt; 9!!\n&quot;</span>);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <a class="code" href="../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae">delete_number</a>(num);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; exit(EXIT_FAILURE);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0">num_digits</a>++;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a> = (<span class="keywordtype">char</span> *)realloc(num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a>, num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0">num_digits</a> * <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>));</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a>[num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0">num_digits</a> - 1] = value;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;}</div>
</div><!-- fragment --><div class="dynheader">
Here is the call graph for this function:</div>
<div class="dyncontent">
<div class="center"><iframe scrolling="no" frameborder="0" src="../../d6/d3d/factorial__large__number_8c_af2869d36c22a2b8f93d3166a84e124b3_cgraph.svg" width="240" height="38"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
</div>
</div>
</div>
</div>
<a id="ab5c854e0df76165c31899e69eceeeaae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab5c854e0df76165c31899e69eceeeaae">&#9670;&nbsp;</a></span>delete_number()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void delete_number </td>
<td>(</td>
<td class="paramtype"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a> *&#160;</td>
<td class="paramname"><em>num</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>delete all memory allocated for large number </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">num</td><td>pointer to large_num to delete </td></tr>
</table>
</dd>
</dl>
<div class="fragment"><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;{</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; free(num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a>);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; free(num);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;}</div>
</div><!-- fragment -->
</div>
</div>
<a id="ad8101f58545bd891ae8b6e11caadd7eb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad8101f58545bd891ae8b6e11caadd7eb">&#9670;&nbsp;</a></span>new_number()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d">large_num</a>* new_number </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>create a new large number </p>
<dl class="section return"><dt>Returns</dt><dd>pointer to a large number </dd></dl>
<div class="fragment"><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;{</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <a class="code" href="../../d3/d5a/struct__large__num.html">large_num</a> *new_num = (<a class="code" href="../../d3/d5a/struct__large__num.html">large_num</a> *)malloc(<span class="keyword">sizeof</span>(<a class="code" href="../../d3/d5a/struct__large__num.html">large_num</a>));</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; new_num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0">num_digits</a> = 1;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; new_num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a> = (<span class="keywordtype">char</span> *)malloc(1 * <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>));</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; new_num-&gt;<a class="code" href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">digits</a>[0] = 1;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="keywordflow">return</span> new_num;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;}</div>
</div><!-- fragment -->
</div>
</div>
</div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="astruct__large__num_html"><div class="ttname"><a href="../../d3/d5a/struct__large__num.html">_large_num</a></div><div class="ttdoc">dynamically large number</div><div class="ttdef"><b>Definition:</b> factorial_large_number.c:15</div></div>
<div class="ttc" id="astruct__large__num_html_a3fd11c0b413bbabfb8737d4ae73e5aa0"><div class="ttname"><a href="../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0">_large_num::num_digits</a></div><div class="ttdeci">unsigned int num_digits</div><div class="ttdoc">number of digits in the number</div><div class="ttdef"><b>Definition:</b> factorial_large_number.c:17</div></div>
<div class="ttc" id="afactorial__large__number_8c_html_ab5c854e0df76165c31899e69eceeeaae"><div class="ttname"><a href="../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae">delete_number</a></div><div class="ttdeci">void delete_number(large_num *num)</div><div class="ttdoc">delete all memory allocated for large number</div><div class="ttdef"><b>Definition:</b> factorial_large_number.c:37</div></div>
<div class="ttc" id="astruct__large__num_html_afaf353a072cf050ac86ac6e39868bcc9"><div class="ttname"><a href="../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9">_large_num::digits</a></div><div class="ttdeci">char * digits</div><div class="ttdoc">array to store individual digits</div><div class="ttdef"><b>Definition:</b> factorial_large_number.c:16</div></div>
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="../../dir_a52f4d3d586a58b02f3a4ddf0a992157.html">misc</a></li><li class="navelem"><a class="el" href="../../d6/d3d/factorial__large__number_8c.html">factorial_large_number.c</a></li>
<li class="footer">Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="../../doxygen.png" alt="doxygen"/></a> 1.8.18 </li>
</ul>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink