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 <span id="projectnumber">0.1.0</span>
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<div id="projectbrief">A simple SDR library</div>
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="title">operators.hh</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 __SDR_OPERATORS_HH__</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define __SDR_OPERATORS_HH__</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <complex></span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Tiny helper functions to handle std::real & std::conj on real integers</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="keyword">namespace </span><a class="code" href="namespacestd.html">std</a> {</div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">inline</span> int16_t conj(int16_t value) { <span class="keywordflow">return</span> value; }</div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">inline</span> int16_t real(int16_t value) { <span class="keywordflow">return</span> value; }</div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">inline</span> int16_t imag(int16_t value) { <span class="keywordflow">return</span> 0; }</div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> }</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">inline</span> std::complex<double> operator*(<span class="keyword">const</span> <span class="keywordtype">double</span> &a, <span class="keyword">const</span> std::complex<float> &b) {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keywordflow">return</span> std::complex<double>(a*b.real(), a*b.imag());</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> }</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">inline</span> std::complex<double> operator*(<span class="keyword">const</span> <span class="keywordtype">double</span> &a, <span class="keyword">const</span> std::complex<uint16_t> &b) {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordflow">return</span> std::complex<double>(a*b.real(), a*b.imag());</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> }</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">inline</span> std::complex<double> operator*(<span class="keyword">const</span> <span class="keywordtype">double</span> &a, <span class="keyword">const</span> std::complex<int16_t> &b) {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">return</span> std::complex<double>(a*b.real(), a*b.imag());</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> }</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">inline</span> std::complex<double> operator*(<span class="keyword">const</span> <span class="keywordtype">double</span> &a, <span class="keyword">const</span> std::complex<uint8_t> &b) {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">return</span> std::complex<double>(a*b.real(), a*b.imag());</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> }</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">inline</span> std::complex<double> operator*(<span class="keyword">const</span> <span class="keywordtype">double</span> &a, <span class="keyword">const</span> std::complex<int8_t> &b) {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> std::complex<double>(a*b.real(), a*b.imag());</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">inline</span> std::complex<float> operator* (<span class="keyword">const</span> std::complex<float> &a, <span class="keyword">const</span> std::complex<int16_t> &b) {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> a*std::complex<float>(std::real(b), std::imag(b));</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">inline</span> std::complex<double> operator* (<span class="keyword">const</span> std::complex<double> &a, <span class="keyword">const</span> std::complex<int16_t> &b) {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> a*std::complex<double>(std::real(b), std::imag(b));</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">inline</span> std::complex<int32_t> operator<< (const std::complex<int32_t> &a, <span class="keywordtype">int</span> b) {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> std::complex<int32_t>(std::real(a)<<b, std::imag(a)<<b);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">inline</span> std::complex<int32_t> operator>> (<span class="keyword">const</span> std::complex<int32_t> &a, <span class="keywordtype">int</span> b) {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> std::complex<int32_t>(std::real(a)>>b, std::imag(a)>>b);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">namespace </span><a class="code" href="namespacesdr.html">sdr</a> {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">template</span> <<span class="keyword">class</span> iScalar, <span class="keyword">class</span> oScalar></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">inline</span> oScalar cast(<span class="keyword">const</span> iScalar &a) { <span class="keywordflow">return</span> oScalar(a); }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">template</span><></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">inline</span> std::complex<double> cast<int8_t, std::complex<double> >(<span class="keyword">const</span> int8_t &a) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> std::complex<double>(std::real(a), std::imag(a));</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">template</span><></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">inline</span> std::complex<double> cast<std::complex<int8_t>, std::complex<double> >(<span class="keyword">const</span> std::complex<int8_t> &a) {</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> std::complex<double>(std::real(a), std::imag(a));</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">template</span><></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">inline</span> std::complex<double> cast<int16_t, std::complex<double> >(<span class="keyword">const</span> int16_t &a) {</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> std::complex<double>(std::real(a), std::imag(a));</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">template</span><></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">inline</span> std::complex<double> cast<std::complex<int16_t>, std::complex<double> >(<span class="keyword">const</span> std::complex<int16_t> &a) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> std::complex<double>(std::real(a), std::imag(a));</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">inline</span> uint8_t mul2(uint8_t a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a >> -n; }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a << n; }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> }</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">inline</span> uint8_t div2(uint8_t a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a << -n; }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a >> n; }</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">inline</span> std::complex<uint8_t> mul2(<span class="keyword">const</span> std::complex<uint8_t> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (n < 0) {</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> std::complex<uint8_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> std::complex<uint8_t>(std::real(a)<<(n), std::imag(a)<<(n));</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">inline</span> std::complex<uint8_t> div2(<span class="keyword">const</span> std::complex<uint8_t> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (n < 0) {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> std::complex<uint8_t>(std::real(a)<<(-n), std::imag(a)<<(-n));</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> std::complex<uint8_t>(std::real(a)>>(n), std::imag(a)>>(n));</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">inline</span> int8_t mul2(int8_t a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a >> -n; }</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a << n; }</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">inline</span> std::complex<int8_t> mul2(<span class="keyword">const</span> std::complex<int8_t> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (n < 0) {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">return</span> std::complex<int8_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> std::complex<int8_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> }</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">inline</span> uint16_t mul2(uint16_t a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a >> -n; }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a << n; }</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">inline</span> std::complex<uint16_t> mul2(<span class="keyword">const</span> std::complex<uint16_t> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (n < 0) {</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> std::complex<uint16_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> std::complex<uint16_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">inline</span> int16_t mul2(int16_t a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a >> -n; }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a << n; }</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">inline</span> std::complex<int16_t> mul2(<span class="keyword">const</span> std::complex<int16_t> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (n < 0) {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> std::complex<int16_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> std::complex<int16_t>(std::real(a)>>(-n), std::imag(a)>>(-n));</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> }</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">inline</span> <span class="keywordtype">float</span> mul2(<span class="keywordtype">float</span> a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a/(1<<(-n)); }</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a*(1<<n); }</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">inline</span> std::complex<float> mul2(<span class="keyword">const</span> std::complex<float> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a/float(1<<(-n)); }</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a*float(1<<n); }</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> }</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keyword">inline</span> std::complex<double> mul2(<span class="keyword">const</span> std::complex<double> &a, <span class="keywordtype">int</span> n) {</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span> (n < 0) { <span class="keywordflow">return</span> a/double(1<<(-n)); }</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">else</span> { <span class="keywordflow">return</span> a*double(1<<n); }</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> }</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#endif // OPERATORS_HH</span></div>
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<div class="ttc" id="namespacesdr_html"><div class="ttname"><a href="namespacesdr.html">sdr</a></div><div class="ttdef"><b>Definition:</b> autocast.hh:8</div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> operators.hh:9</div></div>
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