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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<div class="title">fltrimpl.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef CRYPTOPP_FLTRIMPL_H</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define CRYPTOPP_FLTRIMPL_H</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor"># pragma warning(push)</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor"># pragma warning(disable: 4100)</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor"># pragma GCC diagnostic push</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor"># pragma GCC diagnostic ignored "-Wunused-value"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define FILTER_BEGIN \</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"> switch (m_continueAt) \</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"> case 0: \</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"> m_inputPosition = 0;</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define FILTER_END_NO_MESSAGE_END_NO_RETURN \</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"> break; \</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"> default: \</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"> CRYPTOPP_ASSERT(false); \</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define FILTER_END_NO_MESSAGE_END \</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"> FILTER_END_NO_MESSAGE_END_NO_RETURN \</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"> return 0;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">/*</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">#define FILTER_END \</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> case -1: \</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> if (messageEnd && Output(-1, NULLPTR, 0, messageEnd, blocking)) \</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> return 1; \</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> FILTER_END_NO_MESSAGE_END</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">*/</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#define FILTER_OUTPUT3(site, statement, output, length, messageEnd, channel) \</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"> {\</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"> case site: \</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"> statement; \</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"> if (Output(site, output, length, messageEnd, blocking, channel)) \</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"> return STDMAX(size_t(1), length-m_inputPosition);\</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#define FILTER_OUTPUT2(site, statement, output, length, messageEnd) \</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"> FILTER_OUTPUT3(site, statement, output, length, messageEnd, DEFAULT_CHANNEL)</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#define FILTER_OUTPUT(site, output, length, messageEnd) \</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"> FILTER_OUTPUT2(site, 0, output, length, messageEnd)</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#define FILTER_OUTPUT_BYTE(site, output) \</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"> FILTER_OUTPUT(site, &(const byte &)(byte)output, 1, 0)</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#define FILTER_OUTPUT2_MODIFIABLE(site, statement, output, length, messageEnd) \</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"> {\</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"> </span><span class="comment">/* fall through */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"> case site: \</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"> statement; \</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"> if (OutputModifiable(site, output, length, messageEnd, blocking)) \</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"> return STDMAX(size_t(1), length-m_inputPosition);\</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#define FILTER_OUTPUT_MODIFIABLE(site, output, length, messageEnd) \</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"> FILTER_OUTPUT2_MODIFIABLE(site, 0, output, length, messageEnd)</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, statement, output, length, messageEnd, modifiable) \</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"> {\</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"> </span><span class="comment">/* fall through */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"> case site: \</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"> statement; \</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"> if (modifiable ? OutputModifiable(site, output, length, messageEnd, blocking) : Output(site, output, length, messageEnd, blocking)) \</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"> return STDMAX(size_t(1), length-m_inputPosition);\</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#define FILTER_OUTPUT_MAYBE_MODIFIABLE(site, output, length, messageEnd, modifiable) \</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"> FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, 0, output, length, messageEnd, modifiable)</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#if CRYPTOPP_MSC_VERSION</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"># pragma warning(pop)</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"># pragma GCC diagnostic pop</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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