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<h1>sample9.cpp</h1><a href="a00105.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment">Copyright(c) 2002-2005 Anatoliy Kuznetsov(anatoliy_kuznetsov at yahoo.com)</span>
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<a name="l00003"></a>00003 <span class="comment"></span>
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<a name="l00004"></a>00004 <span class="comment">Permission is hereby granted, free of charge, to any person </span>
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<a name="l00005"></a>00005 <span class="comment">obtaining a copy of this software and associated documentation </span>
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<a name="l00006"></a>00006 <span class="comment">files (the "Software"), to deal in the Software without restriction, </span>
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<a name="l00007"></a>00007 <span class="comment">including without limitation the rights to use, copy, modify, merge, </span>
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<a name="l00008"></a>00008 <span class="comment">publish, distribute, sublicense, and/or sell copies of the Software, </span>
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<a name="l00009"></a>00009 <span class="comment">and to permit persons to whom the Software is furnished to do so, </span>
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<a name="l00010"></a>00010 <span class="comment">subject to the following conditions:</span>
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<a name="l00011"></a>00011 <span class="comment"></span>
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<a name="l00012"></a>00012 <span class="comment">The above copyright notice and this permission notice shall be included </span>
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<a name="l00013"></a>00013 <span class="comment">in all copies or substantial portions of the Software.</span>
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<a name="l00014"></a>00014 <span class="comment"></span>
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<a name="l00015"></a>00015 <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, </span>
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<a name="l00016"></a>00016 <span class="comment">EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES </span>
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<a name="l00017"></a>00017 <span class="comment">OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. </span>
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<a name="l00018"></a>00018 <span class="comment">IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, </span>
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<a name="l00019"></a>00019 <span class="comment">DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, </span>
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<a name="l00020"></a>00020 <span class="comment">ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR </span>
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<a name="l00021"></a>00021 <span class="comment">OTHER DEALINGS IN THE SOFTWARE.</span>
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<a name="l00022"></a>00022 <span class="comment">*/</span>
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<a name="l00023"></a>00023 <span class="comment"></span>
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<a name="l00024"></a>00024 <span class="comment">/** \example sample9.cpp</span>
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<a name="l00025"></a>00025 <span class="comment"></span>
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<a name="l00026"></a>00026 <span class="comment"> Example demonstrates binary distance metrics.</span>
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<a name="l00027"></a>00027 <span class="comment"> </span>
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<a name="l00028"></a>00028 <span class="comment"> \sa bm::count_and </span>
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<a name="l00029"></a>00029 <span class="comment"> \sa bm::count_xor</span>
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<a name="l00030"></a>00030 <span class="comment"> \sa bm::count_sub</span>
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<a name="l00031"></a>00031 <span class="comment"> \sa bm::count_or</span>
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<a name="l00032"></a>00032 <span class="comment"> \sa bm::distance_operation</span>
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<a name="l00033"></a>00033 <span class="comment"></span>
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<a name="l00034"></a>00034 <span class="comment"> For more information please visit: http://bmagic.sourceforge.net</span>
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<a name="l00035"></a>00035 <span class="comment"></span>
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<a name="l00036"></a>00036 <span class="comment">*/</span>
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<a name="l00037"></a>00037
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<a name="l00038"></a>00038 <span class="preprocessor">#include <iostream></span>
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<a name="l00039"></a>00039
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<a name="l00040"></a>00040 <span class="preprocessor">#include "<a class="code" href="a00082.html">bm.h</a>"</span>
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<a name="l00041"></a>00041 <span class="preprocessor">#include "<a class="code" href="a00083.html">bmalgo.h</a>"</span>
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<a name="l00042"></a>00042
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<a name="l00043"></a>00043
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<a name="l00044"></a>00044 <span class="keyword">using namespace </span>std;
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<a name="l00045"></a>00045
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<a name="l00046"></a>00046
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<a name="l00047"></a><a class="code" href="a00105.html#840291bc02cba5474a4cb46a9b9566fe">00047</a> <span class="keywordtype">int</span> <a class="code" href="a00097.html#840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)
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<a name="l00048"></a>00048 {
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<a name="l00049"></a>00049 <a class="code" href="a00040.html" title="bitvector with runtime compression of bits.">bm::bvector<></a> bv1;
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<a name="l00050"></a>00050 <a class="code" href="a00040.html" title="bitvector with runtime compression of bits.">bm::bvector<></a> bv2;
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<a name="l00051"></a>00051
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<a name="l00052"></a>00052 bv1[10] = <span class="keyword">true</span>;
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<a name="l00053"></a>00053 bv1[100] = <span class="keyword">true</span>;
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<a name="l00054"></a>00054 bv1[10000] = <span class="keyword">true</span>;
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056 bv2[10] = <span class="keyword">true</span>;
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<a name="l00057"></a>00057 bv2[100] = <span class="keyword">true</span>;
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<a name="l00058"></a>00058 bv2[20000] = <span class="keyword">true</span>;
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<a name="l00059"></a>00059 bv2[30000] = <span class="keyword">true</span>;
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<a name="l00060"></a>00060
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<a name="l00061"></a>00061 <span class="comment">// Hamming distance: </span>
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<a name="l00062"></a>00062
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<a name="l00063"></a>00063 <span class="keywordtype">unsigned</span> hamming = <a class="code" href="a00115.html#gfc64a082dcaee07f70f7faf3e24f844e" title="Computes bitcount of XOR operation of two bitsets.">bm::count_xor</a>(bv1, bv2);
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<a name="l00064"></a>00064
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<a name="l00065"></a>00065 cout << <span class="stringliteral">"Hamming distance = "</span> << hamming << endl;
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<a name="l00066"></a>00066
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<a name="l00067"></a>00067 <span class="comment">// Dice distance using basic distance functions</span>
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069 <span class="keywordtype">double</span> dice =
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<a name="l00070"></a>00070 double(2 * <a class="code" href="a00115.html#ge451cb4b87e8c0859b0614d2ffb99737" title="Computes bitcount of AND operation of two bitsets.">bm::count_and</a>(bv1, bv2))/double(bv1.<a class="code" href="a00040.html#71077c1315555301532e24d4d2b95ea2" title="Returns count of bits which are 1.">count</a>() + bv2.<a class="code" href="a00040.html#71077c1315555301532e24d4d2b95ea2" title="Returns count of bits which are 1.">count</a>());
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072 cout << <span class="stringliteral">"Dice distance = "</span> << dice << endl;
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074
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<a name="l00075"></a>00075 <span class="comment">// Dice distance, can be computed using "metric pipeline"</span>
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<a name="l00076"></a>00076
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<a name="l00077"></a>00077 <a class="code" href="a00062.html" title="Distance metric descriptor, holds metric code and result.">bm::distance_metric_descriptor</a> dmd[3];
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<a name="l00078"></a>00078 dmd[0].<a class="code" href="a00062.html#3ece2ccdb7a6616f06a5a15679ccabb1">metric</a> = <a class="code" href="a00115.html#ggc38d64c8b27b652413a664cddd4d40abcb39376469ba778e9a9099ddbae5e7ce" title="(A &amp; B).count()">bm::COUNT_AND</a>;
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<a name="l00079"></a>00079 dmd[1].<a class="code" href="a00062.html#3ece2ccdb7a6616f06a5a15679ccabb1">metric</a> = <a class="code" href="a00115.html#ggc38d64c8b27b652413a664cddd4d40abac7947d53eb3acf81251ee4130e6a4a2" title="A.count().">bm::COUNT_A</a>;
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<a name="l00080"></a>00080 dmd[2].<a class="code" href="a00062.html#3ece2ccdb7a6616f06a5a15679ccabb1">metric</a> = <a class="code" href="a00115.html#ggc38d64c8b27b652413a664cddd4d40abc6dbadf2ab9405daa47dc0f10d082516" title="B.count().">bm::COUNT_B</a>;
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<a name="l00081"></a>00081
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<a name="l00082"></a>00082 <a class="code" href="a00115.html#g815fef76f02576ab9ab58de0a45d8a4b" title="Distance computing template function.">bm::distance_operation</a>(bv1, bv2, dmd, dmd+3);
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<a name="l00083"></a>00083
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<a name="l00084"></a>00084 <span class="keywordtype">double</span> dice_p =
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<a name="l00085"></a>00085 double(2 * dmd[0].result) / double(dmd[1].result + dmd[2].result);
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 cout << <span class="stringliteral">"Dice distance (pipeline) = "</span> << dice_p << endl;
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<a name="l00088"></a>00088
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<a name="l00089"></a>00089 <span class="keywordflow">return</span> 0;
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<a name="l00090"></a>00090 }
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<a name="l00091"></a>00091
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<hr size="1"><address style="text-align: right;"><small>Generated on Mon Oct 12 12:16:39 2009 for BitMagic by
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<div class="contents">
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<h1>Memory Allocation<br/>
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[<a class="el" href="a00117.html">BitMagic C++ Library</a>]</small>
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<p><div class="dynheader">
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Collaboration diagram for Memory Allocation:</div>
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<table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><h2>Data Structures</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00039.html">bm::block_allocator</a></td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Default malloc based bitblock allocator class. <a href="a00039.html#_details">More...</a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00078.html">bm::ptr_allocator</a></td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Default malloc based bitblock allocator class. <a href="a00078.html#_details">More...</a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="a00074.html">bm::mem_alloc< BA, PA ></a></td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">BM style allocator adapter. <a href="a00074.html#_details">More...</a><br/></td></tr>
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<tr><td colspan="2"><h2>Typedefs</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">typedef mem_alloc<br class="typebreak"/>
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< block_allocator, <br class="typebreak"/>
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ptr_allocator > </td><td class="memItemRight" valign="bottom"><a class="el" href="a00127.html#gab9059bfb40a6588cdbacfd93901593c1">bm::standard_allocator</a></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
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<p>Memory allocation related units </p>
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<hr/><h2>Typedef Documentation</h2>
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<a class="anchor" id="gab9059bfb40a6588cdbacfd93901593c1"></a><!-- doxytag: member="bm::standard_allocator" ref="gab9059bfb40a6588cdbacfd93901593c1" args="" -->
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<div class="memproto">
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<table class="memname">
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<td class="memname">typedef mem_alloc<block_allocator, ptr_allocator> <a class="el" href="a00074.html">bm::standard_allocator</a></td>
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<p>Definition at line <a class="el" href="a00090_source.html#l00234">234</a> of file <a class="el" href="a00090_source.html">bmalloc.h</a>.</p>
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<hr size="1"/><address style="text-align: right;"><small>Generated on Fri Jan 8 20:09:20 2010 for BitMagic by
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