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<h1>hex.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// hex.cpp - written and placed in the public domain by Wei Dai</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="preprocessor">#include "pch.h"</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef CRYPTOPP_IMPORTS</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include "hex.h"</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 NAMESPACE_BEGIN(CryptoPP)
<a name="l00010"></a>00010
<a name="l00011"></a>00011 static const byte s_vecUpper[] = "0123456789ABCDEF";
<a name="l00012"></a>00012 static const byte s_vecLower[] = "0123456789abcdef";
<a name="l00013"></a>00013
<a name="l00014"></a>00014 <span class="keywordtype">void</span> <a class="code" href="class_hex_encoder.html" title="Converts given data to base 16.">HexEncoder</a>::IsolatedInitialize(const <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &parameters)
<a name="l00015"></a>00015 {
<a name="l00016"></a>00016 <span class="keywordtype">bool</span> uppercase = parameters.GetValueWithDefault(Name::Uppercase(), <span class="keyword">true</span>);
<a name="l00017"></a>00017 m_filter->Initialize(<a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(
<a name="l00018"></a>00018 parameters,
<a name="l00019"></a>00019 MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], <span class="keyword">false</span>)(Name::Log2Base(), 4, <span class="keyword">true</span>)));
<a name="l00020"></a>00020 }
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="keywordtype">void</span> HexDecoder::IsolatedInitialize(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &parameters)
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 BaseN_Decoder::IsolatedInitialize(<a class="code" href="class_combined_name_value_pairs.html">CombinedNameValuePairs</a>(
<a name="l00025"></a>00025 parameters,
<a name="l00026"></a>00026 MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), <span class="keyword">false</span>)(Name::Log2Base(), 4, <span class="keyword">true</span>)));
<a name="l00027"></a>00027 }
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">const</span> <span class="keywordtype">int</span> *HexDecoder::GetDefaultDecodingLookupArray()
<a name="l00030"></a>00030 {
<a name="l00031"></a>00031 <span class="keyword">static</span> <span class="keywordtype">bool</span> s_initialized = <span class="keyword">false</span>;
<a name="l00032"></a>00032 <span class="keyword">static</span> <span class="keywordtype">int</span> s_array[256];
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keywordflow">if</span> (!s_initialized)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 InitializeDecodingLookupArray(s_array, s_vecUpper, 16, <span class="keyword">true</span>);
<a name="l00037"></a>00037 s_initialized = <span class="keyword">true</span>;
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="keywordflow">return</span> s_array;
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042 NAMESPACE_END
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
</pre></div></div>
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