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50<title>nn::util::Crc32</title>
51  </head>
52  <body>
53<h1>nn::util::Crc32 Class</h1>
54<h2>Syntax</h2>
55    <div class="section">
56<pre class="definition">class Crc32</pre>
57    </div>
58<h2>Description</h2>
59    <div class="section">
60<p>This is the class for calculating CRC-32.</p><p>
61	  CRC-32 is an algorithm that finds an 32-bit hash value.
62
63	  CRC-32 is an algorithm used in compression programs, such as PKZIP, and image formats, such as PNG. For details, see ISO 3309 and RFC 2083.
64        </p><!-- write here --></div>
65    <a name="function" id="function">
66<h2>Member Functions</h2>
67      <div class="section">
68        <table class="members">
69          <tr>
70            <td width="100">  </td>
71            <th>
72<a href="../../../nn/util/Crc32/Crc32.html">Crc32</a>
73            </th>
74<td>This is the default constructor.</td>
75          </tr>
76          <tr>
77            <td width="100">  </td>
78            <th>
79<a href="../../../nn/util/Crc32/InitializeContext.html">InitializeContext</a>
80            </th>
81<td>Initializes the context used for calculating CRC-32 hash values.</td>
82          </tr>
83          <tr>
84            <td width="100">  </td>
85            <th>
86<a href="../../../nn/util/Crc32/Update.html">Update</a>
87            </th>
88<td>Updates the CRC-32 hash value with the input data.</td>
89          </tr>
90          <tr>
91            <td width="100">  </td>
92            <th>
93<a href="../../../nn/util/Crc32/GetHash.html">GetHash</a>
94            </th>
95<td>Gets the final result of calculating the CRC-32 hash value.</td>
96          </tr>
97          <tr>
98            <td width="100">
99<span class="static_style" title="static">S</span> </td>
100            <th>
101<a href="../../../nn/util/Crc32/Calculate.html">Calculate</a>
102            </th>
103<td>Calls all the associated functions needed to calculate CRC-32, and gets the calculation result.</td>
104          </tr> </table>
105      </div>
106    </a>
107<h2>Revision History</h2>
108    <div class="section">
109      <dl class="history">
110        <dt>2010/10/15</dt>
111<dd>Initial version.<br />
112        </dd>
113      </dl>
114    </div>
115  <hr><p>CONFIDENTIAL</p></body>
116</html>