backup/C-Plus-Plus
1
0
Fork 0
mirror of https://github.com/TheAlgorithms/C-Plus-Plus.git synced 2026-03-21 20:31:43 +08:00
Code Issues Projects Releases Wiki Activity
Files
14583a2f33720eba2e2786d75e8e2312b85fa667
C-Plus-Plus/d4/d7a/shell__sort2_8cpp_source.html
realstealthninja 14583a2f33 Documentation for c26eea874d
2025-05-19 11:38:33 +00:00

364 lines
44 KiB
HTML
Raw Blame History

<!-- HTML header for doxygen 1.12.0-->
<!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" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.13.2"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>TheAlgorithms/C++: sorting/shell_sort2.cpp Source File</title>
<link rel="icon" href="../../favicon.svg" type="image/x-icon" />
<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>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@xpack-3rd-party/doxygen-awesome-css@2.2.0-1/doxygen-awesome-darkmode-toggle.js"></script>
<script type="text/javascript">
DoxygenAwesomeDarkModeToggle.init()
</script>
<script type="text/javascript" src="../../clipboard.js"></script>
<link href="../../navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../navtreedata.js"></script>
<script type="text/javascript" src="../../navtree.js"></script>
<script type="text/javascript" src="../../resize.js"></script>
<script type="text/javascript" src="../../cookie.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/javascript">
window.MathJax = {
options: {
ignoreHtmlClass: 'tex2jax_ignore',
processHtmlClass: 'tex2jax_process'
},
loader: {
load: ['[tex]/ams']
},
tex: {
macros: {},
packages: ['base','configmacros','ams']
}
};
</script>
<script type="text/javascript" id="MathJax-script" async="async" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml.js"></script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
<link href="../../doxygen-awesome.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 id="projectrow">
<td id="projectlogo"><img alt="Logo" src="../../project_logo.png"/></td>
<td id="projectalign">
<div id="projectname">TheAlgorithms/C++<span id="projectnumber">&#160;1.0.0</span>
</div>
<div id="projectbrief">All the algorithms implemented in C++</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.13.2 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "../../search/",'.html');
/* @license-end */
</script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() { codefold.init(1); });
/* @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:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
initMenu('../../',true,false,'search.php','Search',true);
$(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:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function(){initNavTree('d4/d7a/shell__sort2_8cpp_source.html','../../'); initResizable(true); });
/* @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">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>
<div class="header">
<div class="headertitle"><div class="title">shell_sort2.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="../../d4/d7a/shell__sort2_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;cassert&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;cstdlib&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;ctime&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;utility&gt;</span> <span class="comment">// for std::swap</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div>
<div class="foldopen" id="foldopen00018" data-start="{" data-end="}">
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246"> 18</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a>(T *arr, <span class="keywordtype">size_t</span> LEN) {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keywordtype">size_t</span> i;</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordflow">for</span> (i = 0; i &lt; LEN; i++) {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> std::cout &lt;&lt; arr[i] &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> }</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span>}</div>
</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="foldopen" id="foldopen00032" data-start="{" data-end="}">
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a63aaff7cabfa3da2da8b9477b5fad9d6"> 32</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a>(T (&amp;arr)[N]) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a>(arr, N);</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>}</div>
</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d5/d91/namespacesorting.html">sorting</a> {</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="foldopen" id="foldopen00045" data-start="{" data-end="}">
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa"> 45</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(T *arr, <span class="keywordtype">size_t</span> LEN) {</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> gaps[] = {701, 301, 132, 57, 23, 10, 4, 1};</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> gap_len = 8;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">size_t</span> i, j, g;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">for</span> (g = 0; g &lt; gap_len; g++) {</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> gap = gaps[g];</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">for</span> (i = gap; i &lt; LEN; i++) {</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> T tmp = arr[i];</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">for</span> (j = i; j &gt;= gap &amp;&amp; (arr[j - gap] - tmp) &gt; 0; j -= gap) {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> arr[j] = arr[j - gap];</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> arr[j] = tmp;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> }</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> }</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>}</div>
</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="foldopen" id="foldopen00067" data-start="{" data-end="}">
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"><a class="line" href="../../d5/d91/namespacesorting.html#a4d76603c54d3dc56146e92d10a043924"> 67</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(T (&amp;arr)[N]) {</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(arr, N);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>}</div>
</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="foldopen" id="foldopen00075" data-start="{" data-end="}">
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="../../d5/d91/namespacesorting.html#af2c5b92cbfe73f63f6074c61b0a45331"> 75</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(std::vector&lt;T&gt; *arr) {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(arr-&gt;data(), arr-&gt;size());</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>}</div>
</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>} <span class="comment">// namespace sorting</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="keyword">using </span><a class="code hl_function" href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">sorting::shell_sort</a>;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="foldopen" id="foldopen00087" data-start="{" data-end="}">
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a7eb77daed2cf1513f6d68c47a1c2db1c"> 87</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a7eb77daed2cf1513f6d68c47a1c2db1c">compare</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *a, <span class="keyword">const</span> <span class="keywordtype">void</span> *b) {</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> T arg1 = *<span class="keyword">static_cast&lt;</span><span class="keyword">const </span>T *<span class="keyword">&gt;</span>(a);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> T arg2 = *<span class="keyword">static_cast&lt;</span><span class="keyword">const </span>T *<span class="keyword">&gt;</span>(b);</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span> (arg1 &lt; arg2)</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">if</span> (arg1 &gt; arg2)</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">return</span> 1;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// return (arg1 &gt; arg2) - (arg1 &lt; arg2); // possible shortcut</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// return arg1 - arg2; // erroneous shortcut (fails if INT_MIN is present)</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span>}</div>
</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span></div>
<div class="foldopen" id="foldopen00105" data-start="{" data-end="}">
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a895b313cb2671e8f712040460325573e"> 105</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d3/d4c/quick__sort__3_8cpp.html#a07e5c62de28aeddea986890ce7ac1bda">test_int</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_DATA) {</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// int array = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">int</span> *<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a> = <span class="keyword">new</span> <span class="keywordtype">int</span>[NUM_DATA];</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">int</span> *data2 = <span class="keyword">new</span> <span class="keywordtype">int</span>[NUM_DATA];</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// int array2 = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">int</span> range = 1800;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NUM_DATA; i++)</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[i] = data2[i] = (std::rand() % range) - (range &gt;&gt; 1);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="comment">/* sort using our implementation */</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> std::clock_t start = std::clock();</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, NUM_DATA);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> std::clock_t end = std::clock();</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordtype">double</span> elapsed_time = <span class="keyword">static_cast&lt;</span><span class="keywordtype">double</span><span class="keyword">&gt;</span>(end - start) / CLOCKS_PER_SEC;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Time spent sorting using shell_sort2: &quot;</span> &lt;&lt; elapsed_time</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> &lt;&lt; <span class="stringliteral">&quot;s\n&quot;</span>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="comment">/* sort using std::qsort */</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> start = std::clock();</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> std::qsort(data2, NUM_DATA, <span class="keyword">sizeof</span>(data2[0]), <a class="code hl_struct" href="../../d1/db3/structcompare.html">compare&lt;int&gt;</a>);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> end = std::clock();</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> elapsed_time = <span class="keyword">static_cast&lt;</span><span class="keywordtype">double</span><span class="keyword">&gt;</span>(end - start) / CLOCKS_PER_SEC;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Time spent sorting using std::qsort: &quot;</span> &lt;&lt; elapsed_time</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> &lt;&lt; <span class="stringliteral">&quot;s\n&quot;</span>;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NUM_DATA; i++) {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> assert(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[i] == data2[i]); <span class="comment">// ensure that our sorting results match</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// the standard results</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> }</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">delete</span>[] <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">delete</span>[] data2;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span>}</div>
</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span></div>
<div class="foldopen" id="foldopen00145" data-start="{" data-end="}">
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d"> 145</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d">test_f</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> NUM_DATA) {</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="comment">// int array = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordtype">float</span> *<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a> = <span class="keyword">new</span> <span class="keywordtype">float</span>[NUM_DATA];</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordtype">float</span> *data2 = <span class="keyword">new</span> <span class="keywordtype">float</span>[NUM_DATA];</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// int array2 = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordtype">int</span> range = 1000;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NUM_DATA; i++) {</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[i] = data2[i] = ((std::rand() % range) - (range &gt;&gt; 1)) / 100.;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="comment">/* sort using our implementation */</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> std::clock_t start = std::clock();</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, NUM_DATA);</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> std::clock_t end = std::clock();</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordtype">double</span> elapsed_time = <span class="keyword">static_cast&lt;</span><span class="keywordtype">double</span><span class="keyword">&gt;</span>(end - start) / CLOCKS_PER_SEC;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Time spent sorting using shell_sort2: &quot;</span> &lt;&lt; elapsed_time</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> &lt;&lt; <span class="stringliteral">&quot;s\n&quot;</span>;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="comment">/* sort using std::qsort */</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> start = std::clock();</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> std::qsort(data2, NUM_DATA, <span class="keyword">sizeof</span>(data2[0]), <a class="code hl_struct" href="../../d1/db3/structcompare.html">compare&lt;float&gt;</a>);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> end = std::clock();</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> elapsed_time = <span class="keyword">static_cast&lt;</span><span class="keywordtype">double</span><span class="keyword">&gt;</span>(end - start) / CLOCKS_PER_SEC;</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Time spent sorting using std::qsort: &quot;</span> &lt;&lt; elapsed_time</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> &lt;&lt; <span class="stringliteral">&quot;s\n&quot;</span>;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NUM_DATA; i++) {</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> assert(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[i] == data2[i]); <span class="comment">// ensure that our sorting results match</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// the standard results</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> }</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">delete</span>[] <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keyword">delete</span>[] data2;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span>}</div>
</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span></div>
<div class="foldopen" id="foldopen00183" data-start="{" data-end="}">
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="../../d4/d7a/shell__sort2_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97"> 183</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../dd/d1e/generate__parentheses_8cpp.html#gae66f6b31b5ad750f1fe042a706a4e3d4">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[]) {</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// initialize random number generator - once per program</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> std::srand(std::time(NULL));</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <a class="code hl_function" href="../../d3/d4c/quick__sort__3_8cpp.html#a07e5c62de28aeddea986890ce7ac1bda">test_int</a>(100); <span class="comment">// test with sorting random array of 100 values</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 1 - 100 int values - passed. \n&quot;</span>;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <a class="code hl_function" href="../../d3/d4c/quick__sort__3_8cpp.html#a07e5c62de28aeddea986890ce7ac1bda">test_int</a>(1000); <span class="comment">// test with sorting random array of 1000 values</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 2 - 1000 int values - passed.\n&quot;</span>;</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <a class="code hl_function" href="../../d3/d4c/quick__sort__3_8cpp.html#a07e5c62de28aeddea986890ce7ac1bda">test_int</a>(10000); <span class="comment">// test with sorting random array of 10000 values</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 3 - 10000 int values - passed.\n&quot;</span>;</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d">test_f</a>(100); <span class="comment">// test with sorting random array of 100 values</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 1 - 100 float values - passed. \n&quot;</span>;</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d">test_f</a>(1000); <span class="comment">// test with sorting random array of 1000 values</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 2 - 1000 float values - passed.\n&quot;</span>;</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d">test_f</a>(10000); <span class="comment">// test with sorting random array of 10000 values</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Test 3 - 10000 float values - passed.\n&quot;</span>;</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">int</span> i, NUM_DATA;</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keywordflow">if</span> (argc == 2)</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> NUM_DATA = atoi(argv[1]);</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> NUM_DATA = 200;</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// int array = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordtype">int</span> *<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a> = <span class="keyword">new</span> <span class="keywordtype">int</span>[NUM_DATA];</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// int array2 = new int[NUM_DATA];</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordtype">int</span> range = 1800;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> std::srand(time(NULL));</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keywordflow">for</span> (i = 0; i &lt; NUM_DATA; i++) {</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// allocate random numbers in the given range</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[i] = (std::rand() % range) - (range &gt;&gt; 1);</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> }</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Unsorted original data: &quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, NUM_DATA);</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> std::clock_t start = std::clock();</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, NUM_DATA); <span class="comment">// perform sorting</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> std::clock_t end = std::clock();</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> std::cout &lt;&lt; std::endl</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> &lt;&lt; <span class="stringliteral">&quot;Data Sorted using custom implementation: &quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <a class="code hl_function" href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, NUM_DATA);</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">double</span> elapsed_time = (end - start) * 1.f / CLOCKS_PER_SEC;</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Time spent sorting: &quot;</span> &lt;&lt; elapsed_time &lt;&lt; <span class="stringliteral">&quot;s\n&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">delete</span>[] <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>;</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span>}</div>
</div>
<div class="ttc" id="agenerate__parentheses_8cpp_html_gae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../dd/d1e/generate__parentheses_8cpp.html#gae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Main function.</div><div class="ttdef"><b>Definition</b> <a href="../../dd/d1e/generate__parentheses_8cpp_source.html#l00110">generate_parentheses.cpp:110</a></div></div>
<div class="ttc" id="ahash__search_8cpp_html_a6e1a77282bc65ad359d753d25df23243"><div class="ttname"><a href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a></div><div class="ttdeci">int data[MAX]</div><div class="ttdoc">test data</div><div class="ttdef"><b>Definition</b> <a href="../../d1/df3/hash__search_8cpp_source.html#l00024">hash_search.cpp:24</a></div></div>
<div class="ttc" id="anamespacesorting_html"><div class="ttname"><a href="../../d5/d91/namespacesorting.html">sorting</a></div><div class="ttdoc">for working with vectors</div></div>
<div class="ttc" id="anamespacesorting_html_a5669396c6a6b1e14b97589b6e37980aa"><div class="ttname"><a href="../../d5/d91/namespacesorting.html#a5669396c6a6b1e14b97589b6e37980aa">sorting::shell_sort</a></div><div class="ttdeci">void shell_sort(T *arr, size_t LEN)</div><div class="ttdef"><b>Definition</b> <a href="#l00045">shell_sort2.cpp:45</a></div></div>
<div class="ttc" id="aquick__sort__3_8cpp_html_a07e5c62de28aeddea986890ce7ac1bda"><div class="ttname"><a href="../../d3/d4c/quick__sort__3_8cpp.html#a07e5c62de28aeddea986890ce7ac1bda">test_int</a></div><div class="ttdeci">static void test_int()</div><div class="ttdef"><b>Definition</b> <a href="../../d3/d4c/quick__sort__3_8cpp_source.html#l00138">quick_sort_3.cpp:138</a></div></div>
<div class="ttc" id="ashell__sort2_8cpp_html_a22ea0d1f7943ebb4371d31e44b465b6d"><div class="ttname"><a href="../../d4/d7a/shell__sort2_8cpp.html#a22ea0d1f7943ebb4371d31e44b465b6d">test_f</a></div><div class="ttdeci">void test_f(const int NUM_DATA)</div><div class="ttdef"><b>Definition</b> <a href="#l00145">shell_sort2.cpp:145</a></div></div>
<div class="ttc" id="ashell__sort2_8cpp_html_a5669396c6a6b1e14b97589b6e37980aa"><div class="ttname"><a href="../../d4/d7a/shell__sort2_8cpp.html#a5669396c6a6b1e14b97589b6e37980aa">shell_sort</a></div><div class="ttdeci">void shell_sort(T *arr, size_t LEN)</div><div class="ttdef"><b>Definition</b> <a href="#l00045">shell_sort2.cpp:45</a></div></div>
<div class="ttc" id="ashell__sort2_8cpp_html_a7eb77daed2cf1513f6d68c47a1c2db1c"><div class="ttname"><a href="../../d4/d7a/shell__sort2_8cpp.html#a7eb77daed2cf1513f6d68c47a1c2db1c">compare</a></div><div class="ttdeci">int compare(const void *a, const void *b)</div><div class="ttdef"><b>Definition</b> <a href="#l00087">shell_sort2.cpp:87</a></div></div>
<div class="ttc" id="ashell__sort2_8cpp_html_a951127aea9d7e1e53ea9ae0868633246"><div class="ttname"><a href="../../d4/d7a/shell__sort2_8cpp.html#a951127aea9d7e1e53ea9ae0868633246">show_data</a></div><div class="ttdeci">void show_data(T *arr, size_t LEN)</div><div class="ttdef"><b>Definition</b> <a href="#l00018">shell_sort2.cpp:18</a></div></div>
<div class="ttc" id="astructcompare_html"><div class="ttname"><a href="../../d1/db3/structcompare.html">compare</a></div><div class="ttdef"><b>Definition</b> <a href="../../d5/d8e/huffman_8cpp_source.html#l00036">huffman.cpp:36</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="../../dir_bb1b521853a9c46347182a9d10420771.html">sorting</a></li><li class="navelem"><a class="el" href="../../d4/d7a/shell__sort2_8cpp.html">shell_sort2.cpp</a></li>
<li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="../../doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.13.2 </li>
</ul>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink